CN209394485U - A kind of abrasive disk and equipment for the finishing of convex cylindrical rolling surface of roller - Google Patents

Abstract

The utility model discloses a kind of milling apparatus and abrasive disk external member for the finishing of convex roller rolling surface, milling apparatus includes host, abrasive disk external member and roller circulation disk external system.Host includes pedestal, column, crossbeam, slide unit, top tray, lower tray, axial loading device and main shaft device.It includes roller collection device, roller transportation system, roller dressing mechanism and roller feed mechanism that roller, which recycles disk external system,.Abrasive disk external member includes the first and second abrasive disks a pair of coaxial and that front is positioned opposite.First abrasive disk front includes one group of imploded arcs line trenches for being radially distributed in the first abrasive disk basal plane (indent arc rotary surface), second abrasive disk front includes one or more helicla flute for being distributed in the second abrasive disk basal plane (evagination arc rotary surface), and the basic circle radius of curvature and basal plane transversal radius of curvature of the first, second abrasive disk are equal respectively.The utility model milling apparatus has the finishing ability of high-volume convex roller rolling surface.

Description

A kind of abrasive disk and equipment for the finishing of convex cylindrical rolling surface of roller

Technical field

The utility model relates to a kind of abrasive disk external members for the finishing of convex roller rolling surface and grinding to set It is standby, belong to bearing roller precision processing technology field.

Background technique

Cylinder roller bearing is widely used in all kinds of rotating machineries.Convexity as one of cylinder roller bearing important part Cylindrical roller, the form accuracy and dimensional uniformity of rolling surface have great influence to the performance of bearing.At this stage, known Convex roller rolling surface processing process are as follows: blank form (turning or cold-heading or rolling), roughing (buffing Rolling surface), heat treatment, semifinishing (hard grind rolling surface) and finishing.Well known convex roller rolling surface essence The major processes of processing are microstoning.

Microstoning is a kind of using microstone as grinding tool, and oilstone applies lower pressure to workpiece machining surface And make of reciprocating vibration a little and low speed feed motion at a high speed along workpiece machining surface, to realize the skin processing side of micro cutting Method.Currently, the finishing of convex roller rolling surface, which mostly uses, is not in the mood for penetration type superfine processing method.The processing of its equipment Part is made of a pair of incorgruous tilting superfinishing deflector roll and one (or one group) the superfinishing head equipped with oilstone, convex roller It by guide rolls support and drives, the rail being adapted again along one with convex roller rolling surface element line while rotating Mark makees low speed feed motion, oilstone edge while oilstone is pressed to convex roller rolling surface with lower pressure by superfinishing head The plain line work high speed of convex roller rolling surface is of reciprocating vibration a little, implements finishing to the rolling surface of convex roller Work.In not being in the mood for penetration type superfinishing process, is sequentially passed through with a batch of convex roller and pass through machining area and pass through It is processed by Oilstone super-finishing.

In addition there are one kind not to be in the mood for cut-in type superfine processing method, and the processing part of equipment is by the super of a pair of parallel arrangement Smart deflector roll and one (or one group) the superfinishing head equipped with oilstone form, and convex roller revolves under the support and driving of deflector roll Transhipment is dynamic, rolls along one with convexity cylinder while oilstone is pressed to convex roller rolling surface with lower pressure by superfinishing head Make low speed feed motion and of reciprocating vibration a little, the rolling to convex roller of high speed in the adaptable track of sub- rolling surface element line Implement finishing in dynamic surface.In not being in the mood for cut-in type superfinishing process, serially enters and add with a batch of convex roller Work area domain is simultaneously subjected to Oilstone super-finishing processing.

There are following two aspects technological deficiencies for above two convex roller rolling surface superfine processing method: a side Face, oilstone and deflector roll state of wear change with time and are unfavorable for convex roller rolling surface form accuracy in process With the raising of dimensional accuracy；On the other hand, since microstoning equipment synchronization is only to single (or a few) convexity circle Column roller is processed, and the material removal amount for being processed convex roller rolling surface is hardly rolled by same batch convexity cylinder The influence of sub- rolling surface diameter difference, therefore be difficult effectively to change with microstoning equipment processing convex roller rolling surface The diameter dispersibility of kind processed convex roller rolling surface.Above-mentioned both sides technological deficiency causes to be processed convexity circle Form accuracy and the dimensional uniformity promotion on column roller rolls surface are restricted.

At this stage, the device (equipment) and method for being related to the finishing of convex roller rolling surface further include following several Kind:

Publication No. CN102476350A: Chinese patent publication discloses a kind of cylindrical roller outer diameter centreless grinding processing dress It sets, including small one and large one cast iron mixing roll of two radiuses, there is interval between mixing roll, interval top is equipped with chute feeder, send It is provided with top board above hopper, adds pressurization weight above top board, the contact surface of top board and roller is arc-shaped.Two The linear velocity of mixing roll is different, so that producing relative sliding between cylindrical roller and mixing roll.Adjust small mixing roll vertical and The angle of horizontal direction can drive roller to feed in the axial direction.Mixing roll is while driving cylindrical roller, also to roller table Face carries out attrition process.

Publication No. CN204736036U: Chinese patent publication discloses a kind of for the grinding of precision cylindrical roller periphery Processing unit (plant).It is characterized by: processing unit (plant) includes cylinder, support frame, grinding tool bottom plate, grinding tool, driven roller and pedestal, two Driven roller is parallel with the ymmetry center plane of processing unit (plant), and the left side end of a driven roller upwarps and horizontal plane phase in vertical guide 1~5 ° is handed over into, the right end of another driven roller has a downwarp in vertical guide intersects 1~5 ° with horizontal plane；Two driving roller surfaces Coated with damping coatings to increase coefficient of friction.Grinding tool is fixed on grinding tool bottom plate, applies tonnage, cylinder peace by cylinder On the support frame, support frame and driven roller are mounted on the base dress.Cylindrical roller is placed in driven roller one end, two drives when processing The tangential force that dynamic roller generates makes cylindrical roller around center axis rotation, the axial force of generation make cylindrical roller along central axis run through into It gives, grinding tool processes roller periphery.

Above two device is all made of two driven rollers and supports and cylindrical roller is driven to advance, and hangs down with cylindrical roller direction of advance Straight top is equipped with grinding tool and processes to cylindrical roller periphery, and when processing, all cylindrical rollers passed sequentially through processing district Domain.Such device has two aspect technological deficiency identical with microstoning equipment.

Publication No. CN104608046A: Chinese patent publication discloses a kind of bearing roller cylindrical surface ultraprecise and adds Work method, it is characterised in that: cylindrical roller to be processed is carried out using biplane type cylindrical part external cylindrical ultra-precision process equipment Grinding；Used biplane type cylindrical part external cylindrical ultra-precision process equipment include: top lap, lower abrasive disk, outer gear ring, Eccentric wheel and retainer, wherein the shaft of top lap, lower abrasive disk, outer gear ring and eccentric wheel is placed with one heart, respectively independent Driving；Multiple piece-holder slots are provided in the disk of disc retainer, slot radially distributes；The rotary shaft of retainer It is arranged concentrically with the center of eccentric wheel, and there are offset distances for the center of retainer and the axle center of eccentric wheel；Retainer and outer gear ring Gear cooperation, retainer are driven simultaneously by outer gear ring and eccentric wheel.Cylindrical roller is placed in the slot of retainer before grinding, it is right Top lap applies lower pressure；Workpiece is located between top lap and lower abrasive disk, and contacts with upper and lower abrasive disk；In driving Abrasive disk, lower abrasive disk, outer gear ring and eccentric wheel rotation, while workpiece makees rolling movement under the driving of upper and lower abrasive disk, Also make cycloid motion around top lap and lower abrasive disk under the driving of retainer.

Publication No. CN103522166A: Chinese patent publication discloses a kind of based on upper disk partially auxobaric cylindrical zero Part Excircle machining method, it is characterised in that: the processing unit (plant) of the processing method includes top lap, retainer and lower abrasive disk. Top lap is located at the top of lower abrasive disk, and retainer is located between top lap and lower abrasive disk, and the shaft of retainer is under The shaft of abrasive disk is arranged coaxially, and the shaft of top lap and the shaft of retainer have determining offset distance.When processing, load dress It sets through top lap wobbler action in cylindrical component, cooperates abrasive material to cylinder by top lap and lower abrasive disc Part outer circle is processed.

Publication No. CN105798765A: Chinese patent publication discloses a kind of four cylindrical roller grinding sides of flatness and reciprocator Method and device, it is characterised in that: the mounting rack that rotation is driven by power source is equipped in rack, if mounting rack peripheral outer wall is equipped with Do the mounting groove for installing cylindrical roller；The abrasive sheet being slidably matched with cylindrical roller is correspondingly provided in rack with mounting rack. Cylindrical roller is mounted on mounting rack when use, by rotational installation frame to multiple cylindrical rollers in abrasive sheet simultaneously It is ground.

Three kinds of above-mentioned devices (equipment) can simultaneously process multiple cylindrical components, the cylinder being relatively large in diameter Part periphery material removal amount is larger, is conducive to the raising of dimensional uniformity.But due to its processing unit (plant) (equipment) Closed characteristic, such device (equipment) do not have mass production ability.

Publication No. CN104493689A and CN104493684A: Chinese patent publication it is double to disclose a kind of cylindrical component Disk straight trough abrasive disk, milling apparatus and grinding method, the equipment include workpiece propulsion device, work transfer device and abrasive disk Device.The grinding disc device includes the first, second abrasive disk, and two abrasive disks relatively rotate, and the working face of the first abrasive disk is Plane, the second abrasive disk surface opposite with the first abrasive disk are equipped with one group of radial straight flute, the two sides of straight flute Cross-sectional outling for the working face of the second abrasive disk, the working face of the second abrasive disk be arc-shaped V-shaped or have circular arc V-shaped, the contact point of the workpiece to be added and straight flute or contact circular arc midpoint normal plane and the straight flute The value range of the angle of datum level is 30~60 °；Center one end of nearly second abrasive disk of the straight flute is to promote mouth, institute The other end for stating straight flute is discharge port, and the workpiece propulsion device is arranged in the second abrasive disk central through hole, including main body And the multiple pushers and stock chest installed thereon.

When grinding cylindrical roller periphery using the equipment, on the one hand, cylindrical roller can have in abrasive disk inner-outer circulation The standby ability produced in enormous quantities；On the other hand, in attrition process region, which can be simultaneously compared a large amount of cylindrical rollers Formula processing is realized and is removed to the periphery material for the cylindrical roller being relatively large in diameter more, is conducive to cylindrical roller periphery ruler The raising of very little consistency.

But because of the limitation of abrasive disc structure and process principle, above-mentioned double plate straight trough abrasive disk, milling apparatus and grinding side Method does not have the ability finished to the rolling surface of convex roller.

Utility model content

In view of the problems of the existing technology, the utility model provides a kind of for convex roller rolling surface finishing The abrasive disk external member and milling apparatus of work are equipped with the milling apparatus of the utility model abrasive disk external member with high-volume convexity circle The finishing ability on column roller rolls surface is, it can be achieved that convex roller rolling surface high point material mostly removal, low spot material Few removal, the material for the convex roller rolling surface being relatively large in diameter removes more, the lesser convex roller of diameter rolls The material on surface removes less, so that the form accuracy and dimensional uniformity of convex roller rolling surface, Ke Yiti can be improved The processing efficiency of high convex roller rolling surface reduces processing cost.

In order to solve the above-mentioned technical problem, the utility model proposes one kind be used for convex roller rolling surface finishing The abrasive disk external member of work, including a pair of coaxial the first abrasive disk and the second abrasive disk, the front of first abrasive disk and the The front of two abrasive disks is positioned opposite；

The front of first abrasive disk includes two adjacent with connection of the imploded arcs line trenches of one group of radial distribution The transition face of imploded arcs line trenches；When the surface of the imploded arcs line trenches includes attrition process with processed convex roller The rolling surface working face being in contact and the non-working surface not being in contact with processed convex roller rolling surface； For the working face of the imploded arcs line trenches on a scanning surface, the scanning surface is cross-section scanning surface；The scanning surface is swept Retouching path is circular arc, and the bus (i.e. scanning profile) of the scanning surface is in the normal section of the imploded arcs line trenches；Described In the normal section of imploded arcs line trenches, the cross section profile of the scanning surface is that a radius of curvature and processed convex roller roll The equal circular arc of the radius of curvature that dynamic surface maximum gauge cuts circle；The song of the excessively described cross section profile of the scan path of the scanning surface Rate center, the scan path (circular arc) are the baseline of the imploded arcs line trenches；The baseline of all imploded arcs line trenches It is distributed on an indent arc rotary surface, the indent arc rotary surface is the basal plane of first abrasive disk, the basal plane Axis is the axis of first abrasive disk；

In the shaft section of first abrasive disk, it is R that the transversal of the first abrasive disk basal plane, which is radius of curvature,₁₁Circle Arc；Where the center of curvature of the transversal of the first abrasive disk basal plane, center of circle is located at the circle on the first grinding disk axis Week is the basic circle of first abrasive disk, and the radius of curvature of the basic circle is R₁₂；

The baseline of the imploded arcs line trenches includes the imploded arcs line trenches in the shaft section of first abrasive disk First abrasive disk shaft section of baseline is the central plane of the imploded arcs line trenches working face；When attrition process, it is processed convex The axis of cylindrical roller is spent in the central plane of the imploded arcs line trenches working face；It is processed convex roller and rolls table Face occurs cross wire with the imploded arcs line trenches working face and contacts (tangent), is processed convex roller axis and institute The baseline for stating imploded arcs line trenches is tangential on the maximum gauge section circle of the processed convex roller rolling surface in its axis Mapping point on line；

The consecutive hours at the imploded arcs line trenches working face in its center plane, imploded arcs line trenches working face institute It is R that the crown curve of corresponding processed convex roller rolling surface, which is radius of curvature,_cCircular arc, R_c=R₁₁+ R, wherein R To be processed the radius of curvature that convex roller rolling surface maximum gauge cuts circle；

When discontinuous at the imploded arcs line trenches working face in its center plane, the imploded arcs line trenches working face The crown curve of corresponding processed convex roller rolling surface is approximately that radius of curvature is R_cCircular arc；

The front of second abrasive disk includes one or more helicla flute and the transition face for connecting the adjacent helicla flute； The working face that is in contact when the surface of the helicla flute includes attrition process with processed convex roller and be processed The non-working surface that convex roller is not in contact；When the working face of the helicla flute includes attrition process with processed convexity The working face one and occur with one end face blend angle of processed convex roller that the rolling surface of cylindrical roller is in contact The working face two of contact；The working face one and working face two are respectively on scanning surface one and scanning surface two, the scanning surface one It is cross-section scanning surface with scanning surface two；It is processed under the constraint of the imploded arcs line trenches working face of first abrasive disk The rolling surface and end face rounded corner of convex roller are tangent with the working face one and working face two respectively；The scanning surface One and scanning surface two scan path be the processed convex roller rolling surface maximum gauge cut circle at it Mapping point on axis and the arc rotary surface equiangular helical spiral being distributed on an evagination arc rotary surface；The evagination circular arc The surface of revolution is the basal plane of second abrasive disk, and the axis of the basal plane is the axis of second abrasive disk；The scanning surface One and scanning surface two bus (i.e. scanning profile) in the shaft section of second abrasive disk；

In the shaft section of second abrasive disk, it is R that the transversal of the second abrasive disk basal plane, which is radius of curvature,₂₁Circle Arc；Where the center of curvature of the transversal of the second abrasive disk basal plane, center of circle is located at the circle on the second grinding disk axis Week is the basic circle of second abrasive disk, and the radius of curvature of the basic circle is R₂₂；

The radius of curvature R of transversal of the second abrasive disk basal plane in the second abrasive disk shaft section₂₁Equal to described first The radius of curvature R of transversal of the abrasive disk basal plane in the first abrasive disk shaft section₁₁, the radius of curvature of the second abrasive disk basic circle R₂₂Equal to the radius of curvature R of the first abrasive disk basic circle₁₂；The transversal of the first abrasive disk basal plane and the second abrasive disk base The transversal in face perhaps grinds the ipsilateral of disk axis in the first grinding disk axis and second with the respective center of curvature or exists The two sides of first grinding disk axis and the second grinding disk axis.

Further, the entrance of each imploded arcs line trenches of first abrasive disk is respectively positioned on the outer of first abrasive disk The outlet of edge, each imploded arcs line trenches of the first abrasive disk is respectively positioned on the inner edge of first abrasive disk；Or described first The entrance of each imploded arcs line trenches of abrasive disk is respectively positioned on the inner edge of first abrasive disk, each indent camber line of the first abrasive disk The outlet of groove is respectively positioned on the outer rim of first abrasive disk.

When using free abrasive grain lapping mode, the material of the working face by selecting the first abrasive disk imploded arcs line trenches The material of the working face of material and the second abrasive disk helicla flute, so that the second abrasive disk spiral under attrition process operating condition The friction pair that the material of the material of the working face of slot and processed convex roller forms to processed convex roller around Sliding friction driving moment caused by own axes rotation is greater than the working face of the first abrasive disk imploded arcs line trenches The friction pair that the material of material and processed convex roller forms rotates processed convex roller around own axes Generated sliding-frictional resistance square is processed convex roller around own axes continuous rotation to drive.

When attrition process, under the constraint of the working face of the first abrasive disk imploded arcs line trenches, it is described be processed it is convex It spends the rolling surface of cylindrical roller and the working face one of the second abrasive disk helicla flute occurs line and contacts (tangent), it is described to be added One end face blend angle of work convex roller occurs line with the helicla flute working face two and contacts (tangent)；It is described be processed it is convex Degree cylindrical roller only has the rotary motion freedom degree around own axes.

When attrition process, corresponding each helicla flute of second abrasive disk and each imploded arcs line trenches of first abrasive disk Each confluce is processed in the first abrasive disk imploded arcs line trenches along described imploded arcs line trenches baseline profile one Convex roller.Definition: corresponding each confluce, the working face of the first abrasive disk imploded arcs line trenches with it is described Region made of the working face of second abrasive disk helicla flute surrounds is attrition process region H.

A kind of milling apparatus for the finishing of convex roller rolling surface, packet are proposed in the utility model simultaneously Include the abrasive disk external member in host, roller circulation disk external system and the utility model；

The host includes pedestal, column, crossbeam, slide unit, top tray, lower tray, axial loading device and main shaft device；

The pedestal, column and crossbeam form the frame of the host；

First abrasive disk of the abrasive disk external member is connect with the lower tray, the second abrasive disk of the abrasive disk external member It is connect with the top tray；

The slide unit is connect by the axial loading device with the crossbeam, and the column is also used as guiding parts Axis for the slide unit along second abrasive disk for linear motion provides guiding role；The slide unit is described axially loaded Under the driving of device, under the constraint of the column or other guiding parts, the axis along second abrasive disk makees straight line fortune It is dynamic；

The main shaft device is for driving first abrasive disk or the second abrasive disk to turn round around its axis；

The roller circulation disk external system includes roller collection device, roller transportation system, roller dressing mechanism and roller Feed mechanism；

The exit of each imploded arcs line trenches of first abrasive disk is arranged in the roller collection device, for collect from Leave the processed convex roller of attrition process region H in the outlet of each imploded arcs line trenches；

The roller transportation system is used to processed convex roller being delivered to institute from the roller collection device It states at roller feed mechanism；

The front end of the roller feed mechanism is arranged in the roller dressing mechanism, is used for processed convex roller Axis trimming to the roller feed mechanism required by direction；

When attrition process, there are two ways for the revolution of the abrasive disk external member；Mode one, first abrasive disk are around it Axis revolution, second abrasive disk do not turn round；Mode two, first abrasive disk do not turn round, and second abrasive disk is around it Axis revolution；

There are three kinds of configurations for the host: host configuration one is used for abrasive disk external member single-revolution in a manner of；Main machine frame Type two is used for abrasive disk external member two-revolution in a manner of；Host configuration three is not only suitable for the abrasive disk external member in a manner of one and returns Turn, and is suitable for abrasive disk external member two-revolution in a manner of；

Corresponding to host configuration one:

The main shaft device is mounted on the pedestal, passes through the first grinding described in the subiculum dish driving connected to it Coil the revolution of its axis；The top tray is connect with the slide unit；

When attrition process, first abrasive disk is turned round around its axis；The slide unit is in the column or other guide parts Under the constraint of part, ground together with top tray connected to it and the second abrasive disk being connect with the top tray along described second The axis of mill is approached to first abrasive disk, and to being distributed in being added in each imploded arcs line trenches of first abrasive disk Work convex roller applies operating pressure；

Each helicla flute of second abrasive disk is each equipped with a roller feed mechanism, the roller feed mechanism It is separately mounted to the inlet of each helicla flute of the second abrasive disk, in any imploded arcs line trenches of first abrasive disk Entrance a processed convex roller push is entered when being intersected with the entrance of the second abrasive disk helicla flute The entrance of the first abrasive disk imploded arcs line trenches；

Corresponding to host configuration two:

The main shaft device is mounted on the slide unit, passes through the second grinding described in the pop-up dish driving connected to it Coil the revolution of its axis；The lower tray is mounted on the pedestal；

When attrition process, second abrasive disk is turned round around its axis；The slide unit is in the column or other guide parts Under the constraint of part, together with thereon main shaft device, the top tray that is connected with the main shaft device and be connected with the top tray The second abrasive disk approached along the axis of second abrasive disk to first abrasive disk, and to be distributed in it is described first grinding Processed convex roller in each imploded arcs line trenches of disk applies operating pressure；

Each imploded arcs line trenches of first abrasive disk are each equipped with a roller feed mechanism, and the roller is sent The inlet of each imploded arcs line trenches of first abrasive disk is separately mounted into mechanism, for any in second abrasive disk By a processed convexity cylinder when entrance of helicla flute is intersected with the entrance of the first abrasive disk imploded arcs line trenches Roller push enters the entrance of the first abrasive disk imploded arcs line trenches；

Corresponding to host configuration three:

Two sets of main shaft devices are provided with, wherein a set of main shaft device is mounted on the pedestal, pass through institute connected to it The first abrasive disk described in subiculum dish driving is stated to turn round around its axis, another set of main shaft device is mounted on the slide unit, by with Second abrasive disk described in its pop-up dish driving connected is turned round around its axis；Two sets of main shaft devices are provided with locked Mechanism, the same time only allows the single-revolution of first abrasive disk and the second abrasive disk, and another abrasive disk is in circumferential lock Death situation state；

When single-revolution carries out attrition process to the abrasive disk external member of milling apparatus in a manner of, first abrasive disk and second The relative motion of abrasive disk is identical as the host configuration one；The installation site of the roller feed mechanism and effect and the master Mechanism type one is identical；

When two-revolution carries out attrition process to the abrasive disk external member of milling apparatus in a manner of, first abrasive disk and second The relative motion of abrasive disk and the host configuration two-phase are same；The installation site of the roller feed mechanism and effect and the master Mechanism type two is identical；

When attrition process, processed convex roller enters from the entrance of the first abrasive disk imploded arcs line trenches to be ground Machining area H is ground, leaves attrition process region H from the outlet of the first abrasive disk imploded arcs line trenches, then from described first The outlet of abrasive disk imploded arcs line trenches, sequentially via the roller collection device, roller transportation system, roller dressing mechanism and Roller feed mechanism is formed and is processed convex roller the into the entrance of the first abrasive disk imploded arcs line trenches Circular arc feeding between one abrasive disk and the second abrasive disk along imploded arcs duct alveolobasilar line recycles disk external system with via roller It collects, conveying, the circulation for arranging, being sent into；The path circulated in except the abrasive disk external member is from first grinding The outlet of disk imploded arcs line trenches, sequentially via the roller collection device, roller transportation system, roller dressing mechanism and roller Feed mechanism, into the entrance of the first abrasive disk imploded arcs line trenches, defining the path is that roller recycles disk outer pathway.

Further, when attrition process, the first abrasive disk basal plane is overlapped with the second abrasive disk basal plane；Described It is connected on one abrasive disk front and connects phase on the transition face and second abrasive disk front of two adjacent imploded arcs line trenches There is gap between the transition face of adjacent helicla flute.

In the milling apparatus for the finishing of convex roller rolling surface of the utility model, the abrasive disk set Magnetic texure can also be set inside the second abrasive disk, and the roller circulation disk external system further includes roller demagnetizer, described Setting magnetic texure has one of following two kinds of situations inside second abrasive disk of abrasive disk external member:

Situation one, using fixed grain lapping mode grinding ferromagnetism material processed convex roller when, the Magnetic texure is arranged in the inside of two abrasive disks, by adjusting the magnetic field strength of the magnetic texure, so that second abrasive disk The working face of helicla flute rotates generated sliding around own axes to the processed convex roller of the ferromagnetism material The working face that friction-driven torque is greater than the first abrasive disk imploded arcs line trenches is convex to being processed for the ferromagnetism material Degree cylindrical roller rotates generated sliding-frictional resistance square around own axes, to drive being processed for the ferromagnetism material Convex roller is around own axes continuous rotation；

Situation two, using free abrasive grain lapping mode grinding ferromagnetism material processed convex roller when, it is described Second abrasive disk built-in magnetic structure, to increase quilt of the working face to the ferromagnetism material of the second abrasive disk helicla flute Processing convex roller rotates generated sliding friction driving moment around own axes, so that the quilt of the ferromagnetism material Convex roller is processed around own axes continuous rotation not by the material of the working face of the first abrasive disk imploded arcs line trenches The matching of material and the material of the working face of the second abrasive disk helicla flute restricts.

Compared with prior art, the utility model has the beneficial effects that

During attrition process, work in the working face of the first abrasive disk imploded arcs line trenches and the first abrasive disk helicla flute In each attrition process region H made of face is surrounded, be processed convex roller rolling surface respectively with the first abrasive disk The working face of imploded arcs line trenches occurs cross wire contact and connects with the generation line of working face one of the second abrasive disk helicla flute Touching, one end face blend angle for being processed convex roller occur line with the working face two of the second abrasive disk helicla flute and contact, It is processed convex roller under the friction-driven of the working face of second abrasive disk helicla flute to rotate around own axes, is processed convex Opposite sliding occurs for the working face for spending cylindrical roller rolling surface and the first abrasive disk imploded arcs line trenches, so that realization is to being added The attrition process of work convex roller rolling surface.Material removal and rolling surface and the imploded arcs line trenches work of rolling surface The contact stress for making face is directly related, when larger-diameter processed convex roller rolling surface or processed convexity cylinder When high point and imploded arcs line trenches the work face contact on roller rolls surface, rolling surface connects with imploded arcs line trenches working face Touching stress is larger, and the material removal amount of the rolling surface of contact position is larger；When the processed convex roller of small diameter rolls When low spot and imploded arcs line trenches the work face contact of dynamic surface or processed convex roller rolling surface, rolling surface with The contact stress of imploded arcs line trenches working face is smaller, and the material removal amount of the rolling surface of contact position is smaller.To realize Convex roller rolling surface high point material removes more, low spot material removes less, and the convex roller being relatively large in diameter rolls The material on surface removes more, the material of the lesser convex roller rolling surface of diameter removes less.

Due to the opening Design of the first abrasive disk imploded arcs line trenches and the second abrasive disk helicla flute, deposited in attrition process Convex roller is being processed between the first abrasive disk and the second abrasive disk along the circular arc feeding of imploded arcs duct alveolobasilar line With via roller circulation disk external system collection, conveying, arrangement, feeding circulation, and via roller recycle disk external system when quilt The processing original order of convex roller can be disturbed.

On the one hand, the opening Design of the first abrasive disk imploded arcs line trenches and the second abrasive disk helicla flute is adapted to very much The finishing of high-volume convex roller rolling surface；On the other hand, that upsets when recycling disk external system via roller is processed Convex roller order makes preceding feature, and " convex roller rolling surface high point material removes more, low spot material is gone less It removes, the material for the convex roller rolling surface being relatively large in diameter mostly removal, the lesser convex roller rolling surface of diameter Material remove less " entire processing batch can be diffused to, so that the convex roller rolling surface of entire batch can be improved Form accuracy and dimensional uniformity；When another further aspect is due to attrition process, the first abrasive disk imploded arcs line trenches are ground with second Mill helicla flute has dozens of to as many as hundreds of confluces, i.e., has dozens of to hundreds of processed convexity cylinders to roll simultaneously Son participates in grinding, so as to improve the processing efficiency of convex roller rolling surface, reduces processing cost.

Detailed description of the invention

Fig. 1 is the utility model abrasive disk external member schematic diagram；

Fig. 2 (a) is the imploded arcs line trenches structural representation of the first abrasive disk of the utility model and processed convex roller The contact relation schematic diagram of rolling surface and imploded arcs line trenches working face；

Fig. 2 (b) is the three dimensional structure diagram for being processed convex roller；

Fig. 2 (c) is the two-dimensional structure schematic diagram for being processed convex roller；

Fig. 2 (d) is the scan wheel of the scanning surface where the working face of the utility model the first abrasive disk imploded arcs line trenches Wide schematic diagram one；

Fig. 2 (e) is the scan wheel of the scanning surface where the working face of the utility model the first abrasive disk imploded arcs line trenches Wide schematic diagram two；

Fig. 3 is the utility model the first abrasive disk basal plane schematic diagram；

Fig. 4 (a) is the utility model the second abrasive disk helical groove structure schematic diagram；

Fig. 4 (b) is the contact relation schematic diagram that the utility model is processed convex roller and helicla flute working face；

Fig. 4 (c) is the feature schematic diagram of the utility model arc rotary surface equiangular helical spiral；

Fig. 5 (a) is the contact that convex roller and abrasive disk external member are processed under the utility model attrition process state With the constrained schematic diagram of freedom of motion；

Fig. 5 (b) is the portion the E enlarged drawing in Fig. 5 (a)；

Fig. 6 is that the utility model is processed convex roller and helicla flute work face contact schematic diagram；

Fig. 7 is that convex roller is processed under the utility model attrition process state in imploded arcs line trenches and helicla flute Interior distribution schematic diagram；

Fig. 8 (a) is one structural schematic diagram of host configuration of the utility model milling apparatus；

Fig. 8 (b) is two structural schematic diagram of host configuration of the utility model milling apparatus；

Fig. 9 (a) is one convex roller of the host configuration circulation schematic diagram of the utility model milling apparatus；

Fig. 9 (b) is two convex roller of the host configuration circulation schematic diagram of the utility model milling apparatus；

Figure 10 (a) is that the utility model host configuration one is processed convex roller inside and outside abrasive disk external member external member Recycle schematic diagram；

Figure 10 (b) is that the utility model host configuration one is processed convex roller in helicla flute inlet working face Enter attrition process area schematic under push effect；

Figure 11 (a) is that the utility model host configuration two is processed convex roller inside and outside abrasive disk external member external member Recycle schematic diagram；

Figure 11 (b) is that the utility model host configuration two is processed convex roller in helicla flute inlet working face Enter attrition process area schematic under push effect.

In figure:

11- pedestal；

12- column；

13- crossbeam；

14- slide unit；

15- top tray；

16- lower tray；

17- axial loading device；

18- main shaft device；

2- abrasive disk external member external member；

The first abrasive disk of 21-；

The front of the first abrasive disk of 211-；

The imploded arcs line trenches of the first abrasive disk of 2111-；

The working face of 21111- the first abrasive disk imploded arcs line trenches；

The central plane of the working face of 21112- the first abrasive disk imploded arcs line trenches；

Scanning surface where the working face of 21113- the first abrasive disk imploded arcs line trenches；

Section wheel of the scanning surface in its normal section where the working face of 211131- the first abrasive disk imploded arcs line trenches It is wide；

The normal section of 21114- the first abrasive disk imploded arcs line trenches；

The baseline of 21116- the first abrasive disk imploded arcs line trenches is (where the working face of the first abrasive disk imploded arcs line trenches Scanning surface scan path, circular arc)；

The tangent line of the baseline of 211161- the first abrasive disk imploded arcs line trenches；

The entrance of 21118- the first abrasive disk imploded arcs line trenches；

The outlet of 21119- the first abrasive disk imploded arcs line trenches；

The transition face of two adjacent imploded arcs line trenches of 2112- the first abrasive disk of connection；

The mounting surface of the first abrasive disk of 212-；

The axis of the first abrasive disk of 213-；

The basal plane (indent arc rotary surface) of the first abrasive disk of 214-；

2140- the first abrasive disk basic circle；

Transversal of 2141- the first abrasive disk basal plane in the first abrasive disk shaft section；

The shaft section of the first abrasive disk of 215-；

The second abrasive disk of 22-；

The front of the second abrasive disk of 221-；

The helicla flute of the second abrasive disk of 2211-；

The working face of 22111- the second abrasive disk helicla flute；

The working face one of 221111- the second abrasive disk helicla flute；

The working face two of 221112- the second abrasive disk helicla flute；

Scanning surface where the working face of 22112- the second abrasive disk helicla flute；

Scanning surface one where the working face one of 221121- the second abrasive disk helicla flute；

Scanning surface two where the working face two of 221122- the second abrasive disk helicla flute；

Section of the scanning surface in the second abrasive disk shaft section where the working face of 22113- the second abrasive disk helicla flute Profile；

Scanning surface one where the working face one of 221131- the second abrasive disk helicla flute is in the second abrasive disk shaft section Cross section profile one；

Scanning surface two where the working face two of 221132- the second abrasive disk helicla flute is in the second abrasive disk shaft section Cross section profile two；

The baseline of 22116- the second abrasive disk helicla flute (sweep by scanning surface where the working face of the second abrasive disk helicla flute Retouch path, arc rotary surface equiangular helical spiral)；

The tangent line of 22117- arc rotary surface equiangular helical spiral；

The entrance of 22118- the second abrasive disk helicla flute；

The outlet of 22119- the second abrasive disk helicla flute；

The transition face of 2212- connection the second abrasive disk adjacent grooves；

The mounting surface of the second abrasive disk of 222-；

The axis of the second abrasive disk of 223-；

The basal plane (evagination arc rotary surface) of the second abrasive disk of 224-；

2240- the second abrasive disk basic circle；

Transversal of 2241- the second abrasive disk basal plane in the second abrasive disk shaft section；

The method of transversal of 22411- the second abrasive disk basal plane in the second abrasive disk shaft section is sweared；

Plain line on 2242- the second abrasive disk basal plane；

The tangent line of plain line on 22421- the second abrasive disk basal plane；

Tangent line on 2243- the second abrasive disk basal plane；

225- the second abrasive disk shaft section；

3- is processed convex roller；

31- is processed the axis of convex roller；

32- is processed the rolling surface of convex roller；

321- is processed convex roller rolling surface and cross occurs for the first abrasive disk imploded arcs line trenches working face The contact line of cross spider contact；

3211- is processed convex roller rolling surface and cross occurs for the first abrasive disk imploded arcs line trenches working face The contact line one of cross spider contact；

3212- is processed convex roller rolling surface and cross occurs for the first abrasive disk imploded arcs line trenches working face The contact line two of cross spider contact；

322- is processed convex roller rolling surface and contacts with the working face one of the second abrasive disk helicla flute generation line Contact line；

The maximum gauge that 324- is processed convex roller rolling surface cuts circle；

33- is processed the end face of convex roller；

331- is processed the end face rounded corner of convex roller；

3312- is processed convex roller end face rounded corner and the generation line of working face two of the second abrasive disk helicla flute connects The contact line of touching；

4- roller recycles disk external system；

41- roller collection device；

43- roller transportation system；

44- roller dressing mechanism；

45- roller feed mechanism；

451- roller feed channel；

The positioning surface of 4511- roller feed channel；

452- docks helicla flute；

4521- docks helicla flute working face；

45211- docks helicla flute working face one；

45212- docks helicla flute working face two；

A, cross section profile of the scanning surface where the working face of the first abrasive disk of B- imploded arcs line trenches in its normal section Remote point in imploded arcs line trenches central plane two sides；

When G- attrition process, the confluce of the first abrasive disk imploded arcs line trenches and the second abrasive disk helicla flute；

When H- attrition process, the working face of the first abrasive disk imploded arcs line trenches and the working face of the second abrasive disk helicla flute Region made of surrounding；

When J- attrition process, the first abrasive disk imploded arcs line trenches entrance and the second abrasive disk helicla flute entrance enter oral sex It can locate；

When K- attrition process, the outlet of the first abrasive disk imploded arcs line trenches goes out oral sex with the outlet of the second abrasive disk helicla flute It can locate；

O₁The center of curvature of transversal of-the first abrasive disk basal plane in the first abrasive disk shaft section；

O₂The center of curvature of transversal of-the second abrasive disk basal plane in the second abrasive disk shaft section；

The dynamic point on a plain line on P- the second abrasive disk basal plane (arc rotary surface)；

Q₂Scanning surface is in the second abrasive disk shaft section where the working face of the shaft section inner spiral groove of-the second abrasive disk The basic point of cross section profile one and cross section profile two；

Q₃The maximum gauge for being processed convex roller rolling surface cuts the mapping point of circle on its axis；

θ₁、θ₂Cross section profile of the scanning surface in its normal section where the working face of-the first abrasive disk imploded arcs line trenches In the central angle of the remote point of imploded arcs line trenches central plane two sides；

λ-arc rotary surface equiangular helical spiral helix angle；

R- is processed the radius of curvature that convex roller rolling surface maximum gauge cuts circle；

R₁₁The radius of curvature of transversal of-the first abrasive disk basal plane in the first abrasive disk shaft section；

R₁₂The radius of curvature of the basic circle of-the first abrasive disk；

R₂₁The radius of curvature of transversal of-the second abrasive disk basal plane in the second abrasive disk shaft section；

R₂₂The radius of curvature of the basic circle of-the second abrasive disk；

R_cIt is processed the radius of curvature of the crown curve of convex roller rolling surface.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.The implementation described by reference to attached drawing Example is exemplary, it is intended to for explaining the utility model, and should not be understood as limiting the present invention.In addition, following Size, material, shape and its relative configuration of the constituent part recorded in embodiment etc., such as without special specific record, and The scope of the utility model this is not only limitted to.

The utility model proposes a kind of abrasive disk external member for the finishing of convex roller rolling surface, including one To coaxial 213 and 223 the first abrasive disk 21 and the second abrasive disk 22, the front 211 of first abrasive disk 21 is ground with second The front 221 of mill 22 is positioned opposite, as shown in Figure 1, appended drawing reference 213 is axis (i.e. the first abrasive disk of the first abrasive disk The axis of 214 indent arc rotary surface of basal plane), appended drawing reference 223 is axis (i.e. the second abrasive disk basal plane of the second abrasive disk The axis of 224 evagination arc rotary surfaces).

The mounting surface 212 of first abrasive disk and the mounting surface 222 of the second abrasive disk are respectively back to first grinding The front 211 of disk and the front 221 of the second abrasive disk, first abrasive disk 21 and the second abrasive disk 22 are respectively by respective Mounting surface 212/222 is connected with installation foundation corresponding on milling apparatus.

The front 211 of first abrasive disk 21 includes the imploded arcs duct of one group of (no less than 3) radial distribution Slot 2111 and the transition face 2112 for connecting two adjacent imploded arcs line trenches 2111.

As shown in Fig. 2 (a), when the surface of the imploded arcs line trenches 2111 includes attrition process with processed convexity cylinder The working face 21111 and do not occur with processed convex roller rolling surface 32 that the rolling surface 32 of roller 3 is in contact The non-working surface of contact.It is respectively the three-dimensional structure and two dimension knot for being processed convex roller 3 shown in Fig. 2 (b) and Fig. 2 (c) Structure.

As shown in Fig. 2 (a), the imploded arcs line trenches working face 21111 is on a scanning surface 21113, the scanning surface 21113 be cross-section scanning surface；The scan path of the scanning surface 21113 is circular arc, and the bus of the scanning surface 21113 is (i.e. Scanning profile) in the normal section 21114 of the imploded arcs line trenches 2111.The normal section 21114 is perpendicular in described The tangent line of the scan path (circular arc) of concave arc line trenches 21111 and the plane at excessively corresponding point of contact.

As shown in Fig. 2 (d) and Fig. 2 (e), in the normal section 21114 of the imploded arcs line trenches 2111, the scanning surface 21113 cross section profile 211131 (scanning profile in the normal section 21114) is a radius of curvature and processed convexity circle The equal circular arc of the radius of curvature of the maximum gauge on column roller rolls surface 32 section circle 324, the scanning road of the scanning surface 21113 The center of curvature of the excessively described cross section profile 211131 of diameter, definition: the scan path (circular arc) is the imploded arcs line trenches 2111 baseline 21116.

The scanning surface 21113 is the concrete meaning of cross-section scanning surface are as follows: in the baseline of the imploded arcs line trenches In normal section 21114 at 21116 different location, the cross section profile 211131 of the scanning surface 21113 is remained unchanged.

It is understood that scanning surface described in the utility model and work relation of plane thereon are as follows: scanning surface determines work Make shape, position and the boundary in face, scanning surface is continuous surface；Working face is of similar shape with corresponding scanning surface, position It sets and boundary, in the contact relation for not influencing convex roller 3 and working face, does not influence convex roller rolling surface Under the premise of 32 lapping uniformity working face be can be discontinuous.

As shown in figure 3, the baseline 21116 of all imploded arcs line trenches is distributed on an indent arc rotary surface, it is fixed Justice: the indent arc rotary surface is the basal plane 214 of first abrasive disk 21, and the axis of the basal plane 214 is described first The axis 213 of abrasive disk 21.In the shaft section 215 of first abrasive disk, the transversal 2141 of the basal plane is radius of curvature For R₁₁Circular arc.Definition: the center of curvature O of the transversal 2141 of the basal plane₁Place, the center of circle are positioned at the first grinding dish axle Circumference on line 213 is the basic circle 2140 of first abrasive disk, and the radius of curvature of the basic circle 2140 is R₁₂.Work as R₁₂=0 When, it is R that the basal plane 214 of first abrasive disk, which is a radius of curvature,₁₁Interior concave spherical surface.

The baseline 21116 of all imploded arcs line trenches is in the shaft section 215 of first abrasive disk, definition: packet The first abrasive disk shaft section 215 containing the imploded arcs duct alveolobasilar line 21116 is the imploded arcs line trenches working face 21111 Central plane 21112.It is described in the normal section 21114 of the imploded arcs line trenches as shown in Fig. 2 (d) and Fig. 2 (e) The cross section profile 211131 of scanning surface 21113 where imploded arcs line trenches working face 21111 is at 21112 liang of the central plane The central angle θ of the remote point A and B of side₁≤90°、θ₂≤90°。

As shown in Fig. 2 (a), when attrition process, the axis 31 of convex roller is processed in the imploded arcs line trenches In the central plane 21112 of working face, it is processed the baseline of convex roller axis 31 with the imploded arcs line trenches 21116 maximum gauges for being tangential on the processed convex roller rolling surface 32 cut the mapping of circle 324 on its axis Point Q₃。

As shown in Fig. 2 (d), the imploded arcs line trenches working face 21111 is continuous at plane 21112 in its center.Grinding When processing, convex roller rolling surface 32 is processed with the imploded arcs line trenches working face 21111, right-angled intersection occurs Line contacts (and tangent), and two contact lines 3211 and 3212 that right-angled intersection occurs are located in the imploded arcs line trenches In heart plane 21112 and normal section 21114.Processed convexity cylinder corresponding to the imploded arcs line trenches working face 21111 The crown curve on roller rolls surface 32 is that radius of curvature is R_cCircular arc, R_c=R₁₁+ R, wherein R is to be processed convexity cylinder The maximum gauge on roller rolls surface 32 cuts the radius of curvature of circle 324.

As shown in Fig. 2 (e), the imploded arcs line trenches working face 21111 is discontinuous at plane 1112 in its center.Grinding When processing, convex roller rolling surface 32 is processed with the imploded arcs line trenches working face 21111, diesis friendship occurs Cross wires contact (tangent), one be located at the imploded arcs line trenches normal section 21114 in contact line 3212 respectively with two Right-angled intersection occurs for the contact line 3211 positioned at 21112 two sides of central plane of the imploded arcs line trenches.The indent camber line The crown curve of processed convex roller rolling surface 32 corresponding to groove working face 21111 is approximately that radius of curvature is R_cCircular arc.

When attrition process, convex roller 3 is processed successively from each imploded arcs line trenches 2111 of first abrasive disk Entrance 21118 enter the imploded arcs line trenches 2111, extend through the imploded arcs line trenches 2111 and from corresponding each Leave the imploded arcs line trenches 2111 in the outlet 21119 of imploded arcs line trenches 2111.

The entrance 21118 of each imploded arcs line trenches 2111 of first abrasive disk is each provided at the outer of first abrasive disk 21 The outlet 21119 of edge, each imploded arcs line trenches 2111 of the first abrasive disk is each provided at the inner edge of first abrasive disk 21.Or The entrance 21118 of each imploded arcs line trenches 2111 of first abrasive disk described in person is each provided at the inner edge of first abrasive disk 21, institute The outlet 21119 for stating each imploded arcs line trenches 2111 of the first abrasive disk is each provided at the outer rim of first abrasive disk 21.Recommend institute The entrance 21118 for stating each imploded arcs line trenches 2111 of the first abrasive disk is each provided at the outer rim of first abrasive disk 21, and described The outlet 21119 of each imploded arcs line trenches 2111 of one abrasive disk is each provided at the inner edge of first abrasive disk 21.

Recommend all imploded arcs line trenches 2111 uniformly distributed around the axis 213 of first abrasive disk.

As shown in Fig. 4 (a) and Fig. 4 (b), the front 221 of second abrasive disk includes one or more helicla flute 2211 With the transition face 2212 of connection adjacent grooves 2211, Fig. 4 (a), Fig. 5 (a), Fig. 7, Fig. 8 (a), Fig. 8 (b), Fig. 9 (a), Fig. 9 It (b), is two helicla flutes shown in Figure 10 (a) and Figure 11 (a).

The work being in contact when the surface of the helicla flute 2211 includes attrition process with processed convex roller 3 Face 22111 and the non-working surface not being in contact with processed convex roller 3.

When the working face 22111 of the helicla flute includes attrition process with the rolling surface 32 of processed convex roller The working face 1 that is in contact and the work being in contact with one end face blend angle 331 of processed convex roller Make face 2 221112.

The working face 1 and working face 2 221112 are respectively in scanning surface 1 and scanning surface two On 221122, the scanning surface 1 and scanning surface 2 221122 are cross-section scanning surface.In first abrasive disk The rolling surface 32 and end face rounded corner 331 of processed convex roller under the constraint of imploded arcs line trenches working face 21111 It is tangent with the working face 1 and working face 2 221112 respectively.The scanning surface 1 and scanning surface two 221122 scan path is identical, and the scan path 22116 of the scanning surface 1 and scanning surface 2 221122 was institute The maximum gauge for stating processed convex roller rolling surface 32 cuts mapping point Q of the circle 324 on its axis 31₃, be distributed in Arc rotary surface equiangular helical spiral on one evagination arc rotary surface.

Definition: the working face 1 and 2 221112 place scanning surface 1 of working face and scanning surface two 221122 scan path 22116 is the baseline of the second abrasive disk helicla flute 2211, and the evagination arc rotary surface is described the The basal plane 224 of two abrasive disks, the axis of the basal plane 224 are the axis 223 of second abrasive disk 22.

The feature of the arc rotary surface equiangular helical spiral 22116 are as follows: as shown in Fig. 4 (c), the evagination arc rotary surface A plain line 2242 on 224 makees rotary motion around the axis 223 of the evagination arc rotary surface 224, and a dynamic point P is along described Plain line 2242 is mobile, and tangent line 22117 of the track of the dynamic point P in dynamic point P is moving cutting for point P with perpendicular to the plain line 2242 Line 22421, the described evagination arc rotary surface 224 is to determine angle, and λ ≠ 0 in the included angle X of the tangent line 2243 of dynamic point P.The dynamic point The track of P is the arc rotary surface equiangular helical spiral 22116, and the included angle X is the arc rotary surface equiangular helical spiral 22116 helix angle.

As shown in Fig. 4 (a), in the shaft section 225 of second abrasive disk, the transversal 2241 of the basal plane is curvature half Diameter is R₂₁Circular arc.Definition: the center of curvature O of the transversal 2241 of the basal plane₂Place, the center of circle be located at second abrasive disk Circumference on axis 223 is the basic circle 2240 of second abrasive disk, and the radius of curvature of the basic circle 2240 is R₂₂.Work as R₂₂=0 When, it is R that the basal plane 224 of second abrasive disk, which is a radius of curvature,₂₁Outer convex spherical.

The bus (i.e. scanning profile) of the scanning surface 1 and scanning surface 2 221122 is in second grinding In the shaft section 225 of disk.

Definition: the intersection point of the shaft section 225 of the baseline 22116 and the second abrasive disk of the second abrasive disk helicla flute is institute State the cross section profile of working face 1 and working face 2 221112 place scanning surface 1 and scanning surface 2 221122 1 and cross section profile 2 221132 basic point Q₂, the basic point Q₂On the basal plane transversal 2241 of second abrasive disk. When attrition process, the basic point Q₂Circle 324 is cut in its axis with the maximum gauge of processed convex roller rolling surface 32 Mapping point Q on 31₃It is overlapped.

The scanning surface 1 and scanning surface 2 221122 are the concrete meaning of cross-section scanning surface are as follows: described In the second abrasive disk shaft section 225 at the different location of the baseline 22116 of helicla flute, the scanning surface 1 is cut The cross section profile 2 221132 of facial contour 1 and scanning surface 2 221122 remains unchanged, and with the second abrasive disk base Face cross section profile 2241 is in basic point Q₂The method arrow 22411 at place keeps synchronous deflection.

The radius of curvature R of the basal plane cross section profile 2241 of second abrasive disk₂₁Equal to the basal plane of first abrasive disk The radius of curvature R of cross section profile 2141₁₁, the radius of curvature R of the second abrasive disk basic circle 2240₂₂Equal to first grinding The radius of curvature R of disk basic circle 2140₁₂.The section of the cross section profile 2141 of the first abrasive disk basal plane and the second abrasive disk basal plane Profile 2241 and respective center of curvature O₁、O₂Or in the first grinding disk axis 213 and the second grinding disk axis 223 It is ipsilateral, or it is described first grinding dish axle 213 and second grinding disk axis 223 two sides.

When attrition process, under the constraint of the working face 21111 of the first abrasive disk imploded arcs line trenches, such as Fig. 5 (a) Shown, the portion E that Fig. 5 (b) is Fig. 5 (a) amplifies, the rolling surface 32 and the helicla flute of the processed convex roller Working face 1 line contact (tangent), one end face blend angle 331 of the processed convex roller and institute occurs Line contact (tangent) occurs for the working face 2 221112 for stating helicla flute.The processed convex roller 3 only has around itself The rotary motion freedom degree of axis 31.

As shown in fig. 6, appended drawing reference 322 is the rolling surface 32 and the helicla flute of the processed convex roller Working face 1 contact line, appended drawing reference 3312 be the processed convex roller one end face blend angle 331 with the contact line of the working face 2 221112 of the helicla flute.

As shown in Fig. 4 (b), the cross section profile of the scanning surface 1 where the working face 1 of the helicla flute One 221131 (scanning profiles of scanning surface 1 in the second abrasive disk shaft section 225) and the processed convexity circle The line contact relation of the working face 1 of column roller rolls surface 32 and the helicla flute and the baseline of the helicla flute 22116 is directly related.

The cross section profile 2 221132 of scanning surface 2 221122 where the working face 2 221112 of the helicla flute is (described The scanning profile of scanning surface 2 221122 in second abrasive disk shaft section 225) with the end face of the processed convex roller The contact relation of the working face 2 221112 of rounded corner 331 and the helicla flute and the baseline 22116 of the helicla flute are direct It is related.

The cross section profile 1 and work of scanning surface 1 where the working face 1 of the helicla flute The cross section profile 2 221132 for making the scanning surface 2 221122 where face 2 221112 can be respectively according to processed convexity cylinder rolling Sub- rolling surface 32 and the line contact relation of the working face 1 of the helicla flute, the end face of processed convex roller The line contact relation of the working face 2 221112 of rounded corner 331 and the helicla flute and the baseline 22116 of the helicla flute, benefit It is diagrammatically determined with analytic method or by Three-dimensional Design Software.

Scanning surface 22112 where the helicla flute working face 22111 being adapted with given processed convex roller 3 It can be stated with the structural relation of the processed convex roller 3 are as follows: in the first abrasive disk according to when attrition process The working face 21111 of concave arc line trenches is to the constraint relationship of the given processed convex roller 3, first grinding The relative positional relationship when structural relation and its attrition process of disk 21 and the second abrasive disk 22 determines processed convexity cylinder rolling The position of the baseline 22116 of the relatively described second abrasive disk basal plane 224 of sub- axis 31 and helicla flute and posture, i.e., it is described to be processed The axis 31 of convex roller is in the shaft section 225 of second abrasive disk, with the second abrasive disk basal plane 224 Transversal 2241 in two abrasive disk shaft sections 225 is tangential on the maximum gauge of the processed convex roller rolling surface 32 Cut the mapping point Q of circle 324 on its axis₃, and described added is intersected at the baseline 22116 of the second abrasive disk helicla flute Work convex roller rolling surface 32 maximum gauge cut 324 mapping point Q on its axis of circle₃.It is processed described Relatively described second abrasive disk 22 of convex roller 3 makees arc rotary surface equiangular spiral along the baseline 22116 of the helicla flute Movement removes second abrasive disk physically rolling with the processed convex roller at its front 221 respectively The material that surface 32 and end face rounded corner 331 interfere, be physically the respectively formed and quilt at described positive 221 It processes convex roller rolling surface 32 and the relevant surface of end face rounded corner 331 is the helicla flute working face one 221111 and working face 2 221112 where scanning surface 1 and scanning surface 2 221122.

When the entrance 21118 of the first abrasive disk imploded arcs line trenches 2111 is located at the outer of first abrasive disk 21 It is described when the outlet 21119 of edge, the first abrasive disk imploded arcs line trenches 2111 is located at the inner edge of first abrasive disk 21 The entrance 22118 of second abrasive disk helicla flute 2211 is located at the outer rim of second abrasive disk 22, the second abrasive disk spiral The outlet 22119 of slot 2211 is located at the inner edge of second abrasive disk 22.When the first abrasive disk imploded arcs line trenches 2111 Entrance 21118 be located at first abrasive disk 21 inner edge, the first abrasive disk imploded arcs line trenches 2111 outlet 21119 when being located at the outer rim of first abrasive disk 21, and the entrance 22118 of the second abrasive disk helicla flute 2211 is located at described The outlet 22119 of the inner edge of second abrasive disk 22, the second abrasive disk helicla flute 2211 is located at second abrasive disk 22 Outer rim.

Recommend all helicla flutes 2211 uniformly distributed around the axis 223 of second abrasive disk.

When attrition process, the first abrasive disk basal plane 214 is overlapped with the second abrasive disk basal plane 224；Described first Transition face 2112 and second abrasive disk front of two adjacent imploded arcs line trenches 2111 are connected on abrasive disk front 211 There is gap between the transition face 2212 of connection adjacent grooves 2211 on 221.

As shown in fig. 7, when attrition process, helicla flute 2211 and first abrasive disk of corresponding second abrasive disk Each confluce G of imploded arcs line trenches 2111, along the imploded arcs in the first abrasive disk imploded arcs line trenches 2111 The baseline 21116 of line trenches is distributed a processed convex roller 3.Definition: corresponding each confluce G, described the The working face 21111 and the working face 22111 of the second abrasive disk helicla flute of one abrasive disk imploded arcs line trenches surround Region be attrition process region H.

A kind of milling apparatus for the finishing of convex roller rolling surface, packet are proposed in the utility model simultaneously Host, roller circulation disk external system 4 and aforementioned abrasive disk external member 2 are included, as shown in Fig. 8 (a) and 8 (b).

The host includes pedestal 11, column 12, crossbeam 13, slide unit 14, top tray 15, lower tray 16, axially loaded dress Set 17 and main shaft device 18.

The pedestal 11, column 12 and crossbeam 13 form the frame of the host.

First abrasive disk 21 of the abrasive disk external member 2 is connect with the lower tray 16, and the second of the abrasive disk external member 2 Abrasive disk 22 is connect with the top tray 15.

The slide unit 14 is connect by the axial loading device 17 with the crossbeam 13, and the column 12 is also used as Guiding parts is that the slide unit 14 along the axis of second abrasive disk 22 for linear motion provides guiding role.The slide unit 14 Under the driving of the axial loading device 17, under the constraint of the column 12 or other guiding parts, ground along described second The axial direction of mill 22 is for linear motion.

The main shaft device 18 is for driving first abrasive disk 21 or the second abrasive disk 22 to turn round around its axis.

As shown in Fig. 9 (a) and 9 (b), the roller circulation disk external system 4 includes roller collection device 41, roller delivery system System 43, roller dressing mechanism 44 and roller feed mechanism 45.

The outlet 21119 of each imploded arcs line trenches 2111 of first abrasive disk is arranged in the roller collection device 41 Place, for collecting the processed convexity circle for leaving attrition process region H from the outlet 21119 of each imploded arcs line trenches 2111 Column roller 3.

The roller transportation system 43 from the roller collection device 41 for conveying processed convex roller 3 At to the roller feed mechanism 45.

The front end of the roller feed mechanism 45 is arranged in the roller dressing mechanism 44, is used for processed convexity cylinder The axis 31 of roller is adjusted to direction required by the roller feed mechanism 45.

When attrition process, there are two ways for the revolution of the abrasive disk external member 2；Mode one, first abrasive disk 21 It is turned round around its axis, second abrasive disk 22 does not turn round；Mode two, first abrasive disk 21 do not turn round, and described second grinds Mill 22 is turned round around its axis.

There are three kinds of configurations for the host: host configuration one is used for the single-revolution in a manner of of abrasive disk external member 2；Main machine frame Type two is used for the two-revolution in a manner of of abrasive disk external member 2；Host configuration three is not only suitable for the abrasive disk external member 2 in a manner of one Revolution, and it is suitable for the two-revolution in a manner of of abrasive disk external member 2.

Corresponding to host configuration one, as shown in Fig. 8 (a), the main shaft device 18 is mounted on the pedestal 11, by with Its described lower tray 16 connected drives first abrasive disk 21 to turn round around its axis；The top tray 15 and the slide unit 14 Connection, second abrasive disk 22 and top tray 15 are not turned round.

When attrition process, first abrasive disk 21 is turned round around its axis 213 relative to second abrasive disk 22.It is described The gyratory directions of first abrasive disk 21 need to be according to the rotation direction and its entrance 22118 of the second abrasive disk helicla flute 2211, outlet 22119 position determines, to guarantee that processed convex roller 3 can be from each imploded arcs line trenches of first abrasive disk 2111 entrance 21118 enters the outlet of the imploded arcs line trenches 2111 and self-corresponding each imploded arcs line trenches 2111 21119 leave the imploded arcs line trenches 2111.The slide unit 14 is under the constraint of the column 12 or other guiding parts, even With top tray 15 connected to it and the second abrasive disk 22 being connect with the top tray along the axis of second abrasive disk 22 Line is approached to first abrasive disk 21, and to be distributed in each imploded arcs line trenches of first abrasive disk 21 be processed it is convex It spends cylindrical roller 3 and applies operating pressure.

As shown in Figure 10 (a) and Figure 10 (b), each helicla flute 2211 of second abrasive disk is each equipped with a rolling Sub- feed mechanism 45, the roller feed mechanism 45 are separately mounted to the entrance of each helicla flute 2211 of second abrasive disk At 22118, valve snail is ground for the entrance 21118 and described second in any imploded arcs line trenches 2111 of first abrasive disk One processed push of convex roller 3 is entered into first abrasive disk when entrance 22118 of spin slot 2211 intersects The entrance 21118 of imploded arcs line trenches 2111.

Roller feed channel 451 and one section of docking helicla flute 452, the docking are provided in the roller feed mechanism 45 The working face 4521 of helicla flute 452 is continuity of the working face 22111 of the second abrasive disk helicla flute in roller feed mechanism 45, The working face 4521 of the docking helicla flute is included in during processed convex roller 3 is sent into and processed convexity circle The working face 1 and working face 2 45212 that the rolling surface 32 and end face rounded corner 331 of column roller are in contact respectively, The working face 1 and working face 2 45212 of the docking helicla flute 452 are the working face of the second abrasive disk helicla flute respectively 1 and working face 2 221112 continuity, the roller feed channel 451 intersects with the docking helicla flute 452.? During being processed the entrance 21118 that convex roller 3 enters the imploded arcs line trenches 2111, it is sent into the roller Under the constraint in channel 451, the axis 31 for being processed convex roller 3 enters the indent camber line at the entrance 21118 with it 31 keeping parallelism of axis when groove 2111, or by parallel close to being transitioned into parallel.

When attrition process, in the turning course of first abrasive disk 21, each helicla flute 2211 of the second abrasive disk Entrance 22118 at roller feed mechanism 45 in docking helicla flute 452 respectively successively with each indent of the first abrasive disk The entrance 21118 of camber line groove 2111 intersects.At the entrance 22118 of any helicla flute 2211, in the helicla flute Docking helicla flute 452 in roller feed mechanism 45 and any imploded arcs of the first abrasive disk at 2211 entrance 22118 When the entrance 21118 of line trenches 2111 intersects, under the push effect of gravity or the roller feed mechanism 45, one Convex roller 3 is processed along itself radial direction, with its rolling surface 32 to the first abrasive disk imploded arcs line trenches The close mode of 2111 working face 21111, into the entrance 21118 of the first abrasive disk imploded arcs line trenches 2111.Such as Shown in Figure 10 (b), into the imploded arcs line trenches 2111 entrance 21118 processed convex roller 3 with described the Relatively described second abrasive disk 22 of one abrasive disk 21 turns round, then in the entrance 22118 of the second abrasive disk helicla flute 2211 Enter the attrition process under the push effect of the working face 4521 of docking helicla flute 452 in the roller feed mechanism 45 at place Region H.

On the one hand, convex roller 3 is processed to rub in the sliding of the working face 22111 of the second abrasive disk helicla flute It wipes under the driving of driving moment around 31 continuous rotation of own axes；On the other hand, as shown in Fig. 9 (a), the grinding is come into Lasting pushing of the processed convex roller 3 of machining area H in the working face 22111 of the second abrasive disk helicla flute The baseline 21116 of first abrasive disk imploded arcs line trenches described in effect lower edge makees circular arc feed motion, extends through the indent Camber line groove 2111, and from the outlet 22119 of each helicla flute 2211 of second abrasive disk and each indent of the first abrasive disk The outlet confluce K of the outlet 21119 of camber line groove 2111 leaves the attrition process region H, completes an attrition process.From The processed convex roller 3 of the attrition process region H is opened via roller collection device 41, roller transportation system 43 and rolling Sub- dressing mechanism 44, original order are ground under the action of roller feed mechanism 45 from described second again after being disturbed The entrance of the entrance 21118 of the entrance 22118 and each imploded arcs line trenches 2111 of first abrasive disk of each helicla flute 2211 of disk Confluce J sequentially enters the attrition process region H.The continuous circulating repetition of entire process of lapping, until being processed convexity cylinder Surface quality, form accuracy and the dimensional uniformity of the rolling surface 32 of roller reach technical requirements, and finishing step terminates.

Corresponding to host configuration two, as shown in Fig. 8 (b), the main shaft device 18 is mounted on the slide unit 14, by with Its described top tray 15 connected drives second abrasive disk 22 to turn round around its axis；The lower tray 16 is mounted on the base On seat 11, first abrasive disk 21 and lower tray 16 are not turned round.

When attrition process, second abrasive disk 22 is turned round around its axis；The slide unit 14 the column 12 or other Under the constraint of guiding parts, together with thereon main shaft device 18, the top tray 15 that is connected with the main shaft device 18 and with institute The second connected abrasive disk 22 of top tray 15 is stated to approach along the axis of second abrasive disk 22 to first abrasive disk 21, And operating pressure is applied to the processed convex roller 3 being distributed in each imploded arcs line trenches of first abrasive disk 21.

As shown in Figure 11 (a) and Figure 11 (b), each imploded arcs line trenches 2111 of first abrasive disk are each equipped with one The roller feed mechanism 45, the roller feed mechanism 45 are separately mounted to each imploded arcs line trenches of first abrasive disk At 2111 entrance 21118, ground for the entrance 22118 and described first in any helicla flute 2211 of second abrasive disk It will be described in the processed push of convex roller 3 entrance when entrance 21118 of disk imploded arcs line trenches 2111 intersects The entrance 21118 of first abrasive disk imploded arcs line trenches 2111.

It is provided with roller feed channel 451 in the roller feed mechanism 45, in any imploded arcs line trenches 2111 Entrance 21118 at, the positioning surface 4511 of the roller feed channel 451 is that the imploded arcs line trenches working face 21111 exists Continuity in roller feed mechanism 45.It is being processed entrance of the convex roller 3 into the imploded arcs line trenches 2111 During 21118, under the positioning support of the positioning surface 4511 of the roller feed channel, it is processed convex roller 3 Baseline 21116 of the axis 31 in the central plane 21112 of the imploded arcs line trenches 2111, with the imploded arcs line trenches The maximum gauge for being tangential on its rolling surface 32 cuts the mapping point Q of circle 324 on its axis₃。

When attrition process, in the turning course of second abrasive disk 22, each helicla flute 2211 of the second abrasive disk Entrance 22118 respectively successively intersected with the entrance 21118 of each imploded arcs line trenches 2111 of first abrasive disk.In any institute It states at the entrance 21118 of imploded arcs line trenches 2111, in the entrance 21118 and described second of the imploded arcs line trenches 2111 When the entrance 22118 of any helicla flute 2111 of abrasive disk intersects, under the push effect of the roller feed mechanism 45, one A processed convex roller 3 is slided on the working face 21111 of the imploded arcs line trenches 2111 with its rolling surface 32 Mode, the baseline 21116 along the imploded arcs line trenches 2111 enters the first abrasive disk imploded arcs line trenches 2111 Entrance 21118.Processed convex roller 3 into the entrance 21118 of the imploded arcs line trenches 2111 is then turning over The second abrasive disk helicla flute 2211 entrance 22118 at working face 22111 push effect under enter the grinding Machining area H.

On the one hand, convex roller 3 is processed to rub in the sliding of the working face 22111 of the second abrasive disk helicla flute It wipes under the driving of driving moment around 31 continuous rotation of own axes；On the other hand, as shown in Fig. 9 (b), the grinding is come into Lasting pushing of the processed convex roller 3 of machining area H in the working face 22111 of the second abrasive disk helicla flute The baseline 21116 of first abrasive disk imploded arcs line trenches described in effect lower edge makees circular arc feed motion, extends through the indent Camber line groove 2111, and from the outlet 22119 of each helicla flute 2211 of second abrasive disk and each indent of the first abrasive disk The outlet confluce K of the outlet 21119 of camber line groove 2111 leaves the attrition process region H, completes an attrition process.From The processed convex roller 3 of the attrition process region H is opened via roller collection device 41, roller transportation system 43 and rolling Sub- dressing mechanism 44, original order are ground under the action of roller feed mechanism 45 from described second again after being disturbed The entrance of the entrance 21118 of the entrance 22118 and each imploded arcs line trenches 2111 of first abrasive disk of each helicla flute 2211 of disk Confluce J sequentially enters the attrition process region H.The continuous circulating repetition of entire process of lapping, until being processed convexity cylinder Surface quality, form accuracy and the dimensional uniformity of the rolling surface 32 of roller reach technical requirements, and finishing step terminates.

Corresponding to host configuration three, two sets of main shaft devices 18 are provided with, wherein a set of main shaft device 18 is mounted on the base On seat 11, first abrasive disk 21 is driven to turn round around its axis by the lower tray 16 connected to it, another set of main shaft Device 18 is mounted on the slide unit 14, drives second abrasive disk 22 around its axis by the top tray 15 connected to it Line revolution；Two sets of main shaft devices 18 are provided with locking mechanism, and the same time only allows first abrasive disk 21 and The single-revolution of two abrasive disks 22, and another abrasive disk is in circumferential locking state.

When single-revolution carries out attrition process to the abrasive disk external member 2 of milling apparatus in a manner of, first abrasive disk 21 with The relative motion of second abrasive disk 22 is identical as the host configuration one；Structure, the installation site of the roller feed mechanism 45 It is identical as the host configuration one with acting on；The circulating path and process of lapping of processed convex roller 3 and the host Configuration one is identical.

When two-revolution carries out attrition process to the abrasive disk external member 2 of milling apparatus in a manner of, first abrasive disk 21 with The relative motion of second abrasive disk 22 and the host configuration two-phase are same；Structure, the installation site of the roller feed mechanism 45 It is same with the host configuration two-phase with acting on；The circulating path and process of lapping of processed convex roller 3 and the host Configuration two is identical.

When attrition process, it is processed entrance 21118 of the convex roller 3 from the first abrasive disk imploded arcs line trenches Into attrition process region H, attrition process region H is left from the outlet 21119 of the first abrasive disk imploded arcs line trenches, then From the outlet 21119 of the first abrasive disk imploded arcs line trenches, sequentially via the roller collection device 41, roller delivery system System 43, roller dressing mechanism 44 and roller feed mechanism 45, into the entrance of the first abrasive disk imploded arcs line trenches 21118, it is formed and is processed convex roller 3 between the first abrasive disk 21 and the second abrasive disk 22 along imploded arcs line trenches base The circulation of the circular arc feeding of line 21116 and collection, conveying, arrangement, feeding via roller circulation disk external system 4.The circulation Path except the abrasive disk external member 2 be from the outlet 21119 of the first abrasive disk imploded arcs line trenches, sequentially via The roller collection device 41, roller transportation system 43, roller dressing mechanism 44 and roller feed mechanism 45, into described first The entrance 21118 of abrasive disk imploded arcs line trenches, defining the path is that roller recycles disk outer pathway.

When the utility model is implemented, free abrasive grain lapping mode or fixed grain lapping mode can be used.

When using fixed grain grinding, the working face 21111 of the first abrasive disk imploded arcs line trenches is ground by consolidation Grain material is made.

When using free abrasive grain lapping mode, the working face of the first abrasive disk imploded arcs line trenches can be selected respectively The material of the working face 22111 of 21111 material and the second abrasive disk helicla flute, so that described under attrition process operating condition The friction pair that the material of the material of the working face 22111 of second abrasive disk helicla flute and processed convex roller 3 forms is right It is processed convex roller 3 and rotates generated sliding friction driving moment greater than first abrasive disk around own axes 31 The friction pair of the material composition of the material of the working face 21111 of imploded arcs line trenches and processed convex roller 3 is to being added Work convex roller 3 rotates generated sliding-frictional resistance square around own axes 31, is processed convexity cylinder to drive Roller 3 is around 31 continuous rotation of own axes.

When the working face 21111 of the first abrasive disk imploded arcs line trenches material selection polytetrafluoroethylene (PTFE), described the When the material of the working face 22111 of two abrasive disk helicla flutes selects polymethyl methacrylate, it can be achieved that GCr15, The processed convex roller 3 of the materials such as G20CrNi2MoA, Cr4Mo4V is around 31 continuous rotation of own axes.

Using the quilt of fixed grain lapping mode grinding ferromagnetism material (such as GCr15, G20CrNi2MoA, Cr4Mo4V) When processing convex roller 3, magnetic texure can be set in the inside of the second abrasive disk 22, in the second abrasive disk spiral The working face 22111 of slot is formed about magnetic field.By adjusting the magnetic field strength of the magnetic texure, make the second grinding valve snail The working face 22111 of spin slot generates sufficiently strong magnetic attraction to the processed convex roller 3 of the ferromagnetism material, so that The working face 22111 of the second abrasive disk helicla flute is to the processed convex roller 3 of the ferromagnetism material around itself Axis 31 rotates the working face 21111 that generated sliding friction driving moment is greater than the first abrasive disk imploded arcs line trenches Generated sliding-frictional resistance square is rotated around own axes 31 to the processed convex roller 3 of the ferromagnetism material, To drive the processed convex roller 3 of the ferromagnetism material around 31 continuous rotation of own axes.

When grinding the processed convex roller 3 of ferromagnetism material using free abrasive grain lapping mode, described second is ground The also built-in magnetic texure of mill 22, to increase the working face 22111 of the second abrasive disk helicla flute to the ferromagnetism material The processed convex roller 3 of matter rotates generated sliding friction driving moment around own axes 31.It is described at this time ferromagnetic The processed convex roller 3 of property material can not be by the first abrasive disk imploded arcs duct around 31 continuous rotation of own axes The matching of the material of the working face 22111 of the material of the working face 21111 of slot and the second abrasive disk helicla flute restricts.

It is understood that above-mentioned and following feature can not only carry out the combination as described in each example, but also can be with Other combinations or exclusive use are carried out, this is without departing from the scope of the utility model.

When carrying out attrition process to convex roller rolling surface using the utility model milling apparatus, grinding method The following steps are included:

Step 1: the second abrasive disk 22 is approached along its axis to the first abrasive disk 21, until connecting on the first abrasive disk front The transition face of adjacent grooves is connected on the transition face 2112 of two adjacent imploded arcs line trenches and the second abrasive disk front 2212 as close possible to but attrition process region H in processed convex roller 3 not yet simultaneously and in the first abrasive disk Cross wire contact and the working face 1 with the second abrasive disk helicla flute occur for the working face 21111 of concave arc line trenches Line contact, the i.e. working face 21111 and the second abrasive disk of the first abrasive disk imploded arcs line trenches occurs with working face 2 221112 The space of each attrition process region H made of the working face 22111 of helicla flute surrounds can and can only accommodate a quilt Process convex roller 3.

Step 2: correspond to abrasive disk external member revolution mode one, driving the first abrasive disk 21 around its axis 213 relative to The revolution of second abrasive disk, 22 low speed；Corresponding to the revolution mode two of abrasive disk external member, the second abrasive disk 22 is opposite around its axis 223 It is turned round in 21 low speed of the first abrasive disk.According to the outer diameter rotational speed of the first abrasive disk 21 and the second abrasive disk 22 be 1~ The gyratory directions of 10rpm, the first abrasive disk 21 and the second abrasive disk 22 need to according to the rotation direction of the second abrasive disk helicla flute 2211 and Its entrance 22118, the position of outlet 22119 are determining, can be each interior from the first abrasive disk to guarantee to be processed convex roller 3 The entrance imploded arcs line trenches 2111 of entrance 21118 of concave arc line trenches 2111 and going out for self-corresponding each imploded arcs line trenches 2111 Leave imploded arcs line trenches 2111 in the 21119 of mouth.

Step 3: starting roller transportation system 43, roller dressing mechanism 44 and roller feed mechanism 45；Roller is adjusted to be sent into The feed rate of mechanism 45 is allowed to match with the opposite rotational speed of the first abrasive disk 21 and the second abrasive disk 22, to guarantee to work as The entrance 22118 of each helicla flute 2211 of second abrasive disk and the entrance 21118 of each imploded arcs line trenches 2111 of the first abrasive disk are sent out When raw intersection, there will be a processed convex roller 3 to enter helicla flute respectively under the action of roller feed mechanism 45 Each entrance confluce J of 2211 entrance 22118 and the entrance 21118 of imploded arcs line trenches 2111；Adjust roller delivery system The conveying speed of system 43 and the arrangement speed of roller dressing mechanism 44 are allowed to match with the feed rate of roller feed mechanism 45, Make to be processed convex roller 3 via roller transportation system 43 and roller dressing mechanism 44, in the work of roller feed mechanism 45 Each entrance confluce J is timely entered under；Processed convex roller 3 into entrance confluce J is subsequent because of the first grinding Working face 22111 of the opposite revolution of disk 21 and the second abrasive disk 22 at the entrance 22118 of the second abrasive disk helicla flute 2211 Push effect under enter attrition process region H；Processed convex roller 3 into attrition process region H is ground second The baseline 21116 of lasting the first abrasive disk of push effect lower edge imploded arcs line trenches of the working face 22111 of mill helicla flute is made Circular arc feed motion, extends through imploded arcs line trenches 2111, and from the outlet 22119 of each helicla flute 2211 of the second abrasive disk with The outlet confluce K of the outlet 21119 of each imploded arcs line trenches 2111 of first abrasive disk leaves attrition process region H；It leaves and grinds The processed convex roller 3 for grinding machining area H is arranged via roller collection device 41, roller transportation system 43 and roller Mechanism 44, original order sequentially enter entrance confluce J after being disturbed under the action of roller feed mechanism 45 again；To It establishes and is processed convex roller 3 between the first abrasive disk 21 and the second abrasive disk 22 along imploded arcs duct alveolobasilar line The circulation of 21116 circular arc feeding and collection, conveying, arrangement, feeding via roller circulation disk external system 4.

Step 4: speed is turned round in the opposite rotational speed of the first abrasive disk 21 of adjustment and the second abrasive disk 22 to opposite work Degree is 15~60rpm, adjustment according to the opposite work rotational speed of the outer diameter of the first abrasive disk 21 and the second abrasive disk 22 The feed rate of roller feed mechanism 45 to work feed rate is allowed to opposite with the first abrasive disk 21 and the second abrasive disk 22 Work rotational speed matches, and adjusts the conveying speed of roller transportation system 43 and the arrangement speed of roller dressing mechanism 44, makes Roller collection device 41, roller transportation system 43, roller dressing mechanism 44 and roller in above-mentioned roller circulation disk external system 4 is obtained to send Into the processed convex roller 3 of mechanism 45 everywhere storage matching, recycle it is smooth orderly.

Step 5: filling lapping liquid to attrition process region H.

Step 6: the second abrasive disk 22 is further approached along its axis to the first abrasive disk 21, so that attrition process region H Interior processed convex roller rolling surface 32 occurs with the working face 21111 of the first abrasive disk imploded arcs line trenches respectively Cross wire contacts and contacts with the working face 1 of the second abrasive disk helicla flute generation line, is processed the rolling of convexity cylinder One end face blend angle of son occurs line with the working face 2 221112 of the second abrasive disk helicla flute and contacts, and adds to grinding is distributed in It is processed convex roller 3 each of in the H of work area domain and applies initialization pressure, according to processed convex roller 3 Diameter dimension initialization pressure is 0.5~2N.The working face 22111 of second abrasive disk helicla flute rolls processed convexity cylinder Son 3 rotates the working face that generated sliding friction driving moment is greater than the first abrasive disk imploded arcs line trenches around own axes 31 21111 pairs of processed convex rollers 3 rotate generated sliding-frictional resistance square around own axes 31, are processed convexity circle Column roller 3 makees continuous rotation movement around own axes 31；At the same time, it is processed convex roller 3 and grinds valve snail second The baseline 21116 of lasting the first abrasive disk of push effect lower edge imploded arcs line trenches of the working face 22111 of spin slot make circular arc into To movement.It is processed convex roller rolling surface 32 and starts the working face for being subjected to the first abrasive disk imploded arcs line trenches 21111 and second abrasive disk helicla flute working face 1 attrition process.

Step 7: with attrition process process stable operation, to each of be distributed in the H of attrition process region be processed it is convex Degree cylindrical roller 3 gradually increases operating pressure to service pressure, just according to the diameter dimension of processed convex roller 3 Normal operating pressure is 2~50N.Be processed convex roller 3 keep step 6 with the first abrasive disk imploded arcs line trenches The contact relation of the working face 22111 of working face 21111 and the second abrasive disk helicla flute, around the continuous rotation of own axes 31 Movement and the baseline 21116 along the first abrasive disk imploded arcs line trenches 2111 circular arc feed motion, rolling surface 32 after The working face 1 of the continuous working face 21111 for being subjected to the first abrasive disk imploded arcs line trenches and the second abrasive disk helicla flute Attrition process.

Step 8: being inspected by random samples after attrition process after a period of time to processed convex roller 3；When being taken out Surface quality, form accuracy and the dimensional uniformity of the processed convex roller rolling surface 32 of inspection have not yet been reached technology and want When asking, continue the attrition process of this step；When surface quality, the shape of the processed convex roller rolling surface 32 inspected by random samples When shape precision and dimensional uniformity reach technical requirements, nine are entered step.

Step 9: being gradually reduced operating pressure and finally to zero；Stop roller feed mechanism 45,43 and of roller transportation system Roller dressing mechanism 44 is run, and adjusts the relative rotation speed of the first abrasive disk 21 and the second abrasive disk 22 to zero；Stop adding grinding Work area domain H fills lapping liquid；The second abrasive disk 22 is driven to return to off-position along its axis 223.It collects in circulation everywhere Processed convex roller 3, so far, attrition process process terminates.

It is understood that above-mentioned step and sequence can not only carry out the combination as described in example, but also can carry out Others are applied in combination, this is without departing from the scope of the utility model.

It, can also be following two in the milling apparatus for the finishing of convex roller rolling surface of the utility model The second abrasive disk 22 under kind situation in the abrasive disk external member 2 is internally provided with magnetic texure.

Situation one, using fixed grain lapping mode grinding ferromagnetism material processed convex roller 3 when, the Magnetic texure is arranged in the inside of two abrasive disks 22, by adjusting the magnetic field strength of the magnetic texure, so that second grinding The working face 22111 of valve snail spin slot rotates institute around own axes 31 to the processed convex roller 3 of the ferromagnetism material The sliding friction driving moment of generation is greater than the working face 21111 of the first abrasive disk imploded arcs line trenches to the ferromagnetism The processed convex roller 3 of material rotates generated sliding-frictional resistance square around own axes 31, thus described in driving The processed convex roller 3 of ferromagnetism material is around 31 continuous rotation of own axes.

Situation two, using free abrasive grain lapping mode grinding ferromagnetism material processed convex roller 3 when, it is described Second abrasive disk, 22 built-in magnetic structure, to increase the working face 22111 of the second abrasive disk helicla flute to the ferromagnetism The processed convex roller 3 of material rotates generated sliding friction driving moment around own axes 31, so that the iron The processed convex roller 3 of magnetic material is around 31 continuous rotation of own axes not by the first abrasive disk imploded arcs duct The matching of the material of the working face 22111 of the material of the working face 21111 of slot and the second abrasive disk helicla flute restricts.

For magnetic texure is arranged inside the second abrasive disk 22 of abrasive disk external member 2 in the utility model milling apparatus In the case of attrition process is carried out to the rolling surface of convex roller, is outside the roller circulation disk in used milling apparatus System 4 further includes having roller demagnetizer, and the roller transportation system 43 in roller disk outer circulation path is arranged in roller demagnetizer In or roller transportation system 43 before for by the magnetized ferromagnetism material in magnetic field of the second abrasive disk built-in magnetic structure It is processed convex roller demagnetization, is passing through roller transportation system to avoid the processed convex roller of ferromagnetism material 43 or when roller dressing mechanism 44 reunite, only with previously described grinding method difference are as follows:

In step 3, while starting roller demagnetizer.

In step 6, initialization pressure is being applied to the processed convex roller 3 being distributed in the H of attrition process region Before power, magnetic texure enters working condition；Convex roller is being processed to each of being distributed in the H of attrition process region While the initialization pressure of 3 0.5~2N of application, the magnetic field strength of magnetic texure is adjusted, so that the second abrasive disk helicla flute Working face 22111 to processed convex roller 3 around own axes 31 rotate caused by sliding friction driving moment it is big Institute is rotated around own axes 31 to processed convex roller 3 in the working face 21111 of the first abrasive disk imploded arcs line trenches The sliding-frictional resistance square of generation makees continuous rotation movement around own axes 31 to drive and be processed convex roller 3.

In step 9, after the relative rotation speed for adjusting the first abrasive disk 21 and the second abrasive disk 22 to zero, magnetic texure Off working state is switched to, the operation of roller demagnetizer is stopped.

The the first abrasive disk indent camber line processed due to the parameter designing for specific processed convex roller 3 The working face 22111 of the working face 21111 of groove and the second abrasive disk helicla flute is inevitably present foozle, and institute Installation error can also be had when installing on milling apparatus by stating the first abrasive disk 21 and the second abrasive disk 22.These foozles and Installation error is processed convex roller 3 and the first abrasive disk imploded arcs line trenches when may result in attrition process The contact condition of the working face 22111 of working face 21111 and the second abrasive disk helicla flute has differences with ideal situation.

In order to reduce this species diversity, in first abrasive disk 21 and the second abrasive disk 22 for the first time before use, recommending to utilize Working face 21111 He of the processed convex roller 3 of identical geometric parameter to the first abrasive disk imploded arcs line trenches The working face 22111 of second abrasive disk helicla flute is merged.The grinding side of adjustment method and processed convex roller 3 Method is identical；For step 8, the processed convex roller 3 for participating in adjustment is inspected by random samples, when being processed of being inspected by random samples is convex Surface quality, form accuracy and the dimensional uniformity of degree cylindrical roller rolling surface 32 be when reaching technical requirements, the period of adjustment into Enter step 9；Otherwise, continue step 8.

The utility model proposes abrasive disk external member and milling apparatus be not exclusively for convex roller rolling surface finishing Work, it may also be used for convexity needle roller or spherical roller etc. have time of convex roller cyclopin line or approximate cyclopin line feature The external diameter surface finishing of part is turned, this is without departing from the scope of the utility model.

Claims (6)

1. a kind of abrasive disk for the finishing of convex roller rolling surface, including a pair of coaxial the first abrasive disk (21) With the second abrasive disk (22), the front (211) of first abrasive disk (21) and the front (221) of the second abrasive disk (22) are opposite Arrangement；It is characterized by:

The front (211) of first abrasive disk (21) includes the imploded arcs line trenches (2111) and connection of one group of radial distribution The transition face (2112) of two adjacent imploded arcs line trenches (2111)；

The working face (21111) of the imploded arcs line trenches on a scanning surface (21113), the scanning surface (21113) be etc. Cross-sectional scans face；The scan path of the scanning surface (21113) is circular arc, and the bus of the scanning surface (21113) is described interior In the normal section (21114) of concave arc line trenches (2111)；In the normal section (21114) of the imploded arcs line trenches (2111), The cross section profile (211131) of the scanning surface (21113) is a radius of curvature and processed convex roller rolling surface (32) the equal circular arc of the radius of curvature of maximum gauge section circle (324)；

The center of curvature of the excessively described cross section profile (211131) of the scan path of the scanning surface (21113), the scan path For the baseline (21116) of the imploded arcs line trenches (2111)；The baseline (21116) of all imploded arcs line trenches is distributed in On one indent arc rotary surface, the indent arc rotary surface is the basal plane (214) of first abrasive disk (21), the basal plane (214) axis is the axis (213) of first abrasive disk (21)；

The baseline (21116) of the imploded arcs line trenches includes the indent in the shaft section (215) of first abrasive disk First abrasive disk shaft section (215) of camber line ditch alveolobasilar line (21116) is in the imploded arcs line trenches working face (21111) Heart plane (21112)；When attrition process, the axis (31) of convex roller is processed in the imploded arcs line trenches working face Central plane (21112) in, be processed convex roller rolling surface (32) and the imploded arcs line trenches working face (21111) cross wire contact occurs, is processed the baseline of convex roller axis (31) and the imploded arcs line trenches (21116) maximum gauge for being tangential on the processed convex roller rolling surface (32) cuts circle (324) in its axis (31) mapping point (Q on₃)；

The consecutive hours at the imploded arcs line trenches working face (21111) in its center plane (21112), the imploded arcs duct It is R that the crown curve of processed convex roller rolling surface (32), which is radius of curvature, corresponding to slot working face (21111)_c Circular arc, R_c=R₁₁+ R, wherein R is the song for being processed the maximum gauge section circle (324) of convex roller rolling surface (32) Rate radius, R₁₁For the curvature of transversal (2141) of the first abrasive disk basal plane (214) in the first abrasive disk shaft section (215) Radius；

When discontinuous at the imploded arcs line trenches working face (21111) in its center plane (21112), the indent camber line The crown curve of processed convex roller rolling surface (32) corresponding to groove working face (21111) is approximately curvature half Diameter is R_cCircular arc；

The front (221) of second abrasive disk includes one or more helicla flute (2211) and connection adjacent grooves (2211) Transition face (2212)；

When the working face (22111) of the helicla flute includes attrition process with the rolling surface (32) of processed convex roller It the working face one (221111) that is in contact and is in contact with one end face blend angle (331) of processed convex roller Working face two (221112), the working face one (221111) and working face two (221112) are respectively in scanning surface one (221121) On scanning surface two (221122), the scanning surface one (221121) and scanning surface two (221122) are cross-section scanning surface； The rolling table of processed convex roller under the constraint of the working face (21111) of the first abrasive disk imploded arcs line trenches Face (32) and end face rounded corner (331) are tangent with the working face one (221111) and working face two (221112) respectively；It is described The scan path (22116) of scanning surface one (221121) and scanning surface two (221122) was the processed convexity cylinder rolling The maximum gauge of sub- rolling surface (32) cuts mapping point (Q of the circle (324) on its axis (31)₃) and be distributed in an outer dome Arc rotary surface equiangular helical spiral on the arc surface of revolution；The evagination arc rotary surface is the basal plane of second abrasive disk (22) (224), the axis of the basal plane (224) is the axis (223) of second abrasive disk (22)；The scanning surface one (221121) Bus with scanning surface two (221122) is in the shaft section (225) of second abrasive disk；

The radius of curvature R of transversal (2241) of the second abrasive disk basal plane in the second abrasive disk shaft section₂₁Equal to described The radius of curvature R of transversal (2141) of the one abrasive disk basal plane in the first abrasive disk shaft section₁₁, the second abrasive disk basic circle (2240) radius of curvature R₂₂Equal to the radius of curvature R of the first abrasive disk basic circle (2140)₁₂；The first abrasive disk base The transversal (2141) in face and the transversal (2241) of the second abrasive disk basal plane are ground with the respective center of curvature or described first Mill axis (213) and the second grinding disk axis (223) it is ipsilateral, or in first grinding disk axis (213) and the The two sides of two grindings disk axis (223).

2. the abrasive disk for the finishing of convex roller rolling surface according to claim 1, which is characterized in that described The entrance (21118) of each imploded arcs line trenches (2111) of first abrasive disk is respectively positioned on the outer rim of first abrasive disk (21), institute The outlet (21119) for stating each imploded arcs line trenches (2111) of the first abrasive disk is respectively positioned on the inner edge of first abrasive disk (21)； Or the entrance (21118) of each imploded arcs line trenches (2111) of the first abrasive disk is respectively positioned on first abrasive disk (21) The outlet (21119) of inner edge, each imploded arcs line trenches (2111) of the first abrasive disk is respectively positioned on first abrasive disk (21) Outer rim.

3. the abrasive disk for the finishing of convex roller rolling surface according to claim 1, which is characterized in that use When free abrasive grain lapping mode, by select the working face (21111) of the first abrasive disk imploded arcs line trenches material and The material of the working face (22111) of the second abrasive disk helicla flute, so that second abrasive disk under attrition process operating condition The friction pair that the material of the material of the working face of helicla flute (2211) and processed convex roller (3) forms is convex to being processed It spends cylindrical roller (3) and rotates generated sliding friction driving moment greater than the first abrasive disk indent around own axes (31) The friction pair of the material composition of the material of the working face (21111) of camber line groove and processed convex roller (3) is to being added Work convex roller (3) rotates generated sliding-frictional resistance square around own axes (31), is processed convexity to drive Cylindrical roller (3) is around own axes (31) continuous rotation.

4. a kind of milling apparatus for the finishing of convex roller rolling surface, which is characterized in that followed including host, roller The ring disk external system (4) and the abrasive disk such as any one of claims 1 to 3 for the finishing of convex roller rolling surface (2)；

The host includes pedestal (11), column (12), crossbeam (13), slide unit (14), top tray (15), lower tray (16), axis To loading device (17) and main shaft device (18)；

The pedestal (11), column (12) and crossbeam (13) form the frame of the host；

The first abrasive disk (21) of the abrasive disk (2) is connect with the lower tray (16), the second grinding of the abrasive disk (2) Disk (22) is connect with the top tray (15)；

The slide unit (14) is connect by the axial loading device (17) with the crossbeam (13), and the column (12) can be with It is the axis offer guiding role for linear motion of the slide unit (14) along second abrasive disk (22) as guiding parts；Institute Slide unit (14) is stated under the driving of the axial loading device (17), in the constraint of the column (12) or other guiding parts Under, the axial direction along second abrasive disk (22) is for linear motion；

The main shaft device (18) is for driving first abrasive disk (21) or the second abrasive disk (22) to turn round around its axis；

Roller circulation disk external system (4) includes roller collection device (41), roller transportation system (43), roller dressing mechanism (44) and roller feed mechanism (45)；

The roller collection device (41) is arranged in the outlet (21119) of each imploded arcs line trenches (2111) of first abrasive disk Place, for collecting, to leave being processed for attrition process region H from the outlet (21119) of each imploded arcs line trenches (2111) convex It spends cylindrical roller (3)；

The roller transportation system (43) is used for processed convex roller (3) is defeated at the roller collection device (41) It send to the roller feed mechanism (45)；

Roller dressing mechanism (44) setting is used in the front end of the roller feed mechanism (45) by processed convexity cylinder The axis (31) of roller is adjusted to direction required by the roller feed mechanism (45)；

When attrition process, there are two ways for the revolution of the abrasive disk (2)；Mode one, first abrasive disk (21) are around it Axis revolution, second abrasive disk (22) are not turned round；Mode two, first abrasive disk (21) do not turn round, and described second grinds Mill (22) is turned round around its axis；

There are three kinds of configurations for the host: host configuration one is used for the abrasive disk (2) single-revolution in a manner of；Host configuration two is used In the abrasive disk (2) two-revolution in a manner of；Host configuration three is not only suitable for the abrasive disk (2) single-revolution in a manner of, and suitable For the abrasive disk (2) two-revolution in a manner of；

Corresponding to host configuration one:

The main shaft device (18) is mounted on the pedestal (11), by described in lower tray (16) driving connected to it First abrasive disk (21) is turned round around its axis；The top tray (15) connect with the slide unit (14)；

When attrition process, first abrasive disk (21) is turned round around its axis；The slide unit (14) the column (12) or its Under the constraint of his guiding parts, together with top tray connected to it (15) and the second abrasive disk being connect with the top tray (22) it is approached along the axis of second abrasive disk (22) to first abrasive disk (21), and ground to being distributed in described first Processed convex roller (3) in each imploded arcs line trenches of disk (21) applies operating pressure；

The roller feed mechanism (45) is separately mounted to the entrance (22118) of each helicla flute of the second abrasive disk (2211) Place, for grinding valve snail in the entrance (21118) of any imploded arcs line trenches (2111) of first abrasive disk and described second One processed convex roller (3) push is entered described first when the entrance (22118) of spin slot (2211) intersects The entrance (21118) of abrasive disk imploded arcs line trenches (2111)；

Corresponding to host configuration two:

The main shaft device (18) is mounted on the slide unit (14), by described in top tray (15) driving connected to it Second abrasive disk (22) is turned round around its axis；The lower tray (16) is mounted on the pedestal (11)；

When attrition process, second abrasive disk (22) is turned round around its axis；The slide unit (14) the column (12) or its Under the constraint of his guiding parts, together with thereon main shaft device (18), be connected with the main shaft device (18) top tray (15), And the second abrasive disk (22) being connected with the top tray (15) along second abrasive disk (22) axis to described first Abrasive disk (21) approach, and the processed convexity cylinder being distributed in each imploded arcs line trenches of the first abrasive disk (21) is rolled Sub (3) apply operating pressure；

The roller feed mechanism (45) is separately mounted to the entrance of each imploded arcs line trenches (2111) of first abrasive disk (21118) at, in the entrance (22118) and first abrasive disk of any helicla flute of the second abrasive disk (2211) One processed convex roller (3) push is entered into institute when the entrance (21118) of concave arc line trenches (2111) intersects State the entrance (21118) of the first abrasive disk imploded arcs line trenches (2111)；

Corresponding to host configuration three:

Be provided with two sets of main shaft devices (18), wherein a set of main shaft device (18) is mounted on the pedestal (11), by with its The lower tray (16) of connection drives first abrasive disk (21) to turn round around its axis, another set of main shaft device (18) installation On the slide unit (14), second abrasive disk (22) is driven to return around its axis by the top tray (15) connected to it Turn；Two sets of main shaft devices (18) are provided with locking mechanism, and the same time only allows first abrasive disk (21) and The single-revolution of two abrasive disks (22), and another abrasive disk is in circumferential locking state；

When single-revolution carries out attrition process to the abrasive disk (2) of milling apparatus in a manner of, first abrasive disk (21) and second The relative motion of abrasive disk (22) is identical as the host configuration one；The installation site and effect of the roller feed mechanism (45) It is identical as the host configuration one；

When two-revolution carries out attrition process to the abrasive disk (2) of milling apparatus in a manner of, first abrasive disk (21) and second The relative motion of abrasive disk (22) and the host configuration two-phase are same；The installation site and effect of the roller feed mechanism (45) It is same with the host configuration two-phase.

5. the milling apparatus for the finishing of convex roller rolling surface according to claim 4, which is characterized in that grind When mill processing, the first abrasive disk basal plane (214) is overlapped with the second abrasive disk basal plane (224)；First abrasive disk Transition face (2112) and second abrasive disk front of two adjacent imploded arcs line trenches (2111) are connected on positive (211) (221) there is gap between the transition face (2212) of connection adjacent grooves (2211) on.

6. the milling apparatus according to claim 4 or 5 for the finishing of convex roller rolling surface, feature exist In setting magnetic texure inside the second abrasive disk (22) of the abrasive disk (2), roller circulation disk external system (4) further includes rolling Sub- demagnetizer, the internal setting magnetic texure of the second abrasive disk (22) of the abrasive disk (2) have one of following two kinds of situations:

Situation one, using fixed grain lapping mode grinding ferromagnetism material processed convex roller (3) when, second Magnetic texure is arranged in the inside of abrasive disk (22), by adjusting the magnetic field strength of the magnetic texure, so that second grinding The working face (22111) of valve snail spin slot is to the processed convex roller (3) of the ferromagnetism material around own axes (31) Sliding friction driving moment caused by rotating is greater than the working face (21111) of the first abrasive disk imploded arcs line trenches to institute The processed convex roller (3) for stating ferromagnetism material rotates generated sliding-frictional resistance square around own axes (31), To drive the processed convex roller (3) of the ferromagnetism material around own axes (31) continuous rotation；

Situation two, using free abrasive grain lapping mode grinding ferromagnetism material processed convex roller (3) when, described the Two abrasive disks (22) built-in magnetic structure, to increase the working face (22111) of the second abrasive disk helicla flute to described ferromagnetic Property material processed convex roller (3) around own axes (31) rotate caused by sliding friction driving moment so that The processed convex roller (3) of the ferromagnetism material is around own axes (31) continuous rotation not by first abrasive disk The material of the working face (22111) of the material and the second abrasive disk helicla flute of the working face (21111) of imploded arcs line trenches Matching restrict.