CN102601702B - Processing method for internal sphere of split bearing seat - Google Patents
Processing method for internal sphere of split bearing seat Download PDFInfo
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- CN102601702B CN102601702B CN201110025502.6A CN201110025502A CN102601702B CN 102601702 B CN102601702 B CN 102601702B CN 201110025502 A CN201110025502 A CN 201110025502A CN 102601702 B CN102601702 B CN 102601702B
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Abstract
The invention discloses a processing method for an internal sphere of a split bearing seat. The processing method comprises the following steps: installing a positioning mechanism on a workpiece shaft; fastening the bearing seat in the positioning mechanism; compacting the bearing seat on a transition plate through a press block; vertically arranging a positioning block on the transition plate and making the positioning block push against the bearing seat, taking a contact face between the positioning block and the end face of the bearing seat as a positioning face so as to ensure the degree of symmetry between the center of the internal sphere of the bearing seat and two end faces vertical to a key groove at the bottom face of the bearing seat; installing an angle positioning plate on a machine tool carriage; installing a grinding mechanism on the angle positioning plate and forming a grinding included angle between a grinding head of the grinding mechanism and the internal sphere of the bearing seat; swinging a first hand shank and a second hand shank to make the internal sphere of the bearing eat contact the grinding head; and starting a machine tool motor and a motor, so as to reversely rotate the bearing seat and the grinding head until the processing on the internal sphere of the bearing seat ends. With the adoption of the processing method provided by the invention, the internal sphere of the split bearing seat can be grinded, and the high-precision positioning for the center of the internal sphere of the bearing seat can be realized.
Description
Technical field
The present invention relates to the processing method of bearing block, relate in particular to the processing method of Split type bearing support Internal Spherical Surface.
Background technology
The steel-making continuous casting production line of iron and steel enterprise at home and abroad, centre at the whole driven roller of continuous casting machine fan-shaped segment generally disposes Split type bearing support and bearing, this split bearing holder structure is comparatively complicated, mainly band Internal Spherical Surface bearing base, the bearing seat of honour, half band spherical outside surface outer ring, dissection type combination inner ring, group leader's cylindrical roller, dissection type sealing ring, a seals and other component, consists of.Split type bearing support indoor design has two cover autonomous systems: cooling system and lubricating system, so Split type bearing support claims again water cooled bearing seat.The basic characteristics of Split type bearing support are: 1, bearing block, bearing and axle are completely separated, do not need to remove the axle being connected with bearing and the relevant device being connected with axle when checking bearing, have simplified the installation and removal of driven roller; 2, the water-cooling system of Split type bearing support and highly reliable sealing property, extended service life of bearing block to greatest extent, is also adapted to the hot environment of continuous-casting of steel billet simultaneously; 3, the Self-aligning of bearing and the combination function that moves left and right, the self adaptation requirement to Continuous Casting Rolls in the time of can meeting casting.Especially, the sealing that described Split type bearing support has, cooling, lubricated, Self-aligning and the characteristic moving left and right, be general axis bearing can not possess simultaneously.
Generally, wide thickness plate continuous casting machine unit has 17 fan-shaped section, and wherein there are 8 fan-shaped section the arcuate segments under 0# fan-shaped section, and horizontal segment has 9 fan-shaped section.Every fan-shaped section all has a pair of driven roller, driven roller is a whole roller, the intermediate configurations of whole driven roller has Split type bearing support and bearing (general three metamerism rollers are furnished with two cover split bearing assemblies), is plain bearing at the two ends of driven roller (being commonly referred to free end and stiff end).Design and the assembling of fan shaped section driving roller not only simplified in a large amount of employings of split bearing assembly, but also the corresponding rigidity that improves Continuous Casting Rolls has reduced amount of deflection.Continuous Casting Rolls selects split bearing assembly to be adapted to the demand for development of continuous casting technology, and the while is also representing the main flow designer trends of current Continuous Casting Rolls in the world.
At present, Split type bearing support and split bearing that domestic steel-making continuous casting production line is used mainly depend on import, and the domestic manufacturer that there is no can grasp this production technology.Therefore, once Split type bearing support and split bearing damage, just can only scrap processing, new Split type bearing support and split bearing are purchased in import, and the Split type bearing support of import and split bearing expensive, thereby increased the production cost of domestic iron and steel enterprises.
Summary of the invention
The object of the present invention is to provide a kind of processing method of Split type bearing support Internal Spherical Surface, by implementing this processing method energy grinding, go out Split type bearing support Internal Spherical Surface, can guarantee the symmetry of bearing support internal sphere center and bearing block keyway, can guarantee again the symmetry of bearing support internal sphere center and two end faces vertical with bearing block bottom surface keyway, realize the hi-Fix of bearing support internal sphere center.
The present invention is achieved in that
A processing method for Split type bearing support Internal Spherical Surface, comprises the following steps:
Step 1, detent mechanism in Split type bearing support interior spherical surface working device is arranged on the workpiece spindle being connected with machine motor, be about to the location-plate in detent mechanism, rebound and positioning key are sleeved on workpiece spindle successively, and on location-plate, be symmetrically fixed with compressor arm, by location-plate, rebound and positioning key and workpiece spindle are affixed, and location-plate and rebound is affixed, affixed after locating by alignment pin between rebound and positioning key, the plane of rebound and positioning key laminating is the axial locating surface of bearing block bottom, positioning key is for guaranteeing the symmetry of bearing support internal sphere center and bearing block bottom surface keyway,
Step 2, is installed on bearing block in detent mechanism, is about to positioning key and snaps in the keyway of bearing block bottom surface, and bearing block is fixed in detent mechanism by positioning key;
Step 3, is arranged on compressor arm end by briquetting, by briquetting by bearing block axial compression on rebound;
Step 8, start the motor in machine motor and grinding mechanism, workpiece spindle and grinding wheel spindle are counter-rotated, the rotation of workpiece spindle drives the bearing block that is fixed on the detent mechanism on workpiece spindle and is fixed in detent mechanism to be rotated simultaneously, and the rotation of grinding wheel spindle drives the bistrique being fixed on grinding wheel spindle to be rotated simultaneously; Adopt generation method to carry out grinding to bearing support internal sphere, bearing block is contrary with the direction of rotation of bistrique, until bearing support internal sphere machines.
The grinding included angle that in described step 6, bistrique and bearing support internal sphere form, is the angle of the longitudinal center line formation of grinding wheel spindle center line and bearing block bottom surface keyway; The grinding included angle that described bistrique and bearing support internal sphere form is 45 °, and the angle that grinding wheel spindle center line and bearing block bottom surface keyway longitudinal center line form is 45 °.
Described processing method also comprises that the coloration detection in bearing support internal sphere processing later stage and the accuracy of form and position detect; Described coloration detection is that bearing support internal sphere shape adopts corresponding spherical outside surface coloration detection; The described accuracy of form and position detects and comprises that the detection of bearing support internal sphere radius and the symmetry of bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface detect.
The detection of described bearing support internal sphere radius is for to be placed on standard ball on bearing support internal sphere, and the peak of measurement standard ball is to the distance H of bearing block end face, and will measure the value H of gained and the radius R of standard ball
markcompare, if H equals R
mark, illustrate that bearing support internal sphere radius meets processing request, if H is not equal to R
mark, illustrate that bearing support internal sphere radius does not meet processing request.
The bearing support internal sphere center line that the symmetry of described bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface detects as take perpendicular to bearing block both ends of the surface is datum line, perpendicular to bearing block bottom surface, on bearing block, intercept detection plane, in detection plane, measure respectively bearing support internal sphere edge to distance A and the B of bearing block both ends of the surface, measure keyway edge, bearing block bottom surface to the distance A of bearing block both ends of the surface ' and B', and the value of (A-B) and value (A'-B') are compared, above-mentioned if (A-B) and (A'-B') between difference be controlled at sphere diameter 0.025% within, the symmetry that bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface are described meets processing request, above-mentioned if (A-B) and (A'-B') between difference be greater than 0.025% of sphere diameter, the symmetry that bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface are described does not meet processing request.
In described coloration detection, bearing support internal sphere tinctorial yield requires to reach more than 85%.
Bistrique in described step 6 is hollow cylindrical bistrique, and bistrique external diameter is directly proportional to the radius of bearing support internal sphere, bistrique external diameter value D=(R
2+ R
2)
1/2, the radius value that wherein R is bearing support internal sphere to be processed.
The present invention is a kind of processing method for processing and fabricating and reparation Split type bearing support Internal Spherical Surface, and this processing method is that the processing unit (plant) based on Split type bearing support Internal Spherical Surface is realized.
First, detent mechanism is fixed on workpiece spindle and by bearing block and is fixed in detent mechanism, detent mechanism and bearing block all can rotate with workpiece spindle.In this detent mechanism, the plane of rebound and positioning key laminating is the axial locating surface of bearing block bottom, and positioning key is for guaranteeing the symmetry of bearing support internal sphere center and bearing block keyway; The face that locating piece in detent mechanism is vertical and adjacent with positioning key is the locating surface of bearing block end face, distance between locating surface and workpiece spindle center line equals half of bearing block axial width, to guarantee the symmetry of bearing support internal sphere center and two end faces vertical with bearing block bottom surface keyway.
Secondly, angle orientation plate and grinding mechanism are arranged on lathe, make the longitudinal center line shape grinding included angle at 45 ° of grinding wheel spindle center line in grinding mechanism and bearing block bottom surface keyway, and by first, second handle regulating shaft bearing on lathe and the position of grinding mechanism, bearing support internal sphere is contacted with bistrique.
Finally, adopt generation method to carry out grinding to bearing support internal sphere, even if bearing block is rotated and grinding with contrary direction with bistrique, until bearing support internal sphere machines.
In addition, processing method of the present invention also comprises that the coloration detection in bearing support internal sphere processing later stage and the accuracy of form and position detect, and the bearing support internal sphere after processing is detected, and deletes and selects satisfactory bearing block.
By implementing processing method energy of the present invention grinding, go out Split type bearing support Internal Spherical Surface, can guarantee the symmetry of bearing support internal sphere center and bearing block keyway, can guarantee again the symmetry of bearing support internal sphere center and two end faces vertical with bearing block bottom surface keyway, realize the hi-Fix of bearing support internal sphere center.
Accompanying drawing explanation
Fig. 1 is for implementing the processing unit (plant) structural representation of a kind of Split type bearing support inner sphere working of the present invention method;
Fig. 2 is the structural representation (omitting location-plate, briquetting and compressor arm) of detent mechanism in the present invention;
Fig. 3 is the C-C cutaway view of Fig. 2;
Fig. 4 is the structural representation (omitting belt and motor) of grinding mechanism in the present invention;
Fig. 5 is the accuracy detection schematic diagram in bottom bracket inner sphere working later stage of the present invention.
In figure: 1 lathe, 2 workpiece spindles, 3 location-plates, 4 rebounds, 5 positioning keys, 6 bearing blocks, 7 keyways, 8 motors, 9 machine motors, 10 angle orientation plates, 11 emery wheel axle beds, 12 first handles, 13 second handles, 14 bistriques, 15 briquettings, 16 compressor arms, 17 alignment pins, 18 belts, 19 grinding wheel spindles, 20 bearing holder (housing, cover) groups, 21 belt pulleys, 22 locating pieces, 23 standard ball, H is that standard ball peak is to the distance of bearing block end face, R
markfor the radius of standard ball, A and B are respectively detection plane top chock Internal Spherical Surface edge to the distance of bearing block both ends of the surface, and A' and B' are respectively keyway edge, detection plane top chock bottom surface to the distance of bearing block both ends of the surface.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Referring to Fig. 1, a kind of processing method of Split type bearing support Internal Spherical Surface, comprises the following steps:
Step 1, detent mechanism in Split type bearing support interior spherical surface working device is arranged on the workpiece spindle 2 being connected with machine motor 9, the location-plate 3, rebound 4 and the positioning key 5 that are about in detent mechanism are sleeved on workpiece spindle 2 successively, and are symmetrically fixed with compressor arm 16 on location-plate 3.Referring to Fig. 2 and Fig. 3, location-plate 3, rebound 4 and positioning key 5 is affixed with workpiece spindle 2, and location-plate 3 and rebound 4 is affixed, rear affixed by alignment pin 17 location between rebound 4 and positioning key 5, the plane of rebound 4 and positioning key 5 laminatings is the axial locating surface of bearing block 6 bottoms, and positioning key 5 is for guaranteeing the symmetry of bearing block 6 Internal Spherical Surface centers and bearing block 6 bottom surface keyways 7.
Step 2, is installed on bearing block 6 in detent mechanism, is about to positioning key 5 and snaps in the keyway 7 of bearing block 6 bottom surfaces, and bearing block 6 is fixed in detent mechanism by positioning key 5.
Step 3, is arranged on compressor arm 16 ends by briquetting 15, by briquetting 15 by bearing block 6 axial compression on rebound 4.
Step 8, start the motor 8 in machine motor 9 and grinding mechanism, workpiece spindle 2 and grinding wheel spindle 19 are counter-rotated, in the time of workpiece spindle 2 rotation, drive the bearing block 6 that is fixed on the detent mechanism on workpiece spindle 2 and is fixed in detent mechanism to be rotated, in the time of grinding wheel spindle 19 rotation, drive the bistrique 14 being fixed on grinding wheel spindle 19 to be rotated; Adopt generation method to carry out grinding to bearing block 6 Internal Spherical Surface, bearing block 6 is contrary with the direction of rotation of bistrique 14, until bearing block 6 inner sphere workings complete.
In conjunction with above-mentioned steps six to step 8, adopt generation method to carry out grinding to bearing block 6 Internal Spherical Surface, Internal Spherical Surface that grinding goes out is met the requirements and just must meet two conditions below: 1) center line of bearing block 6 Internal Spherical Surface must intersect at the Internal Spherical Surface centre of sphere with the center line of grinding wheel spindle 19 in same level, so the center line of bearing block 6 Internal Spherical Surface and the center line of grinding wheel spindle 19 must form grinding included angle; Again because bearing block 6 bottom surface keyways 7 are positioned at bearing block 6 bottom center, bearing block 6 Internal Spherical Surface are positioned at bearing block 6 end face centers, so the grinding included angle that bearing block 6 Internal Spherical Surface center lines and grinding wheel spindle 19 center lines form is the angle of bearing block 6 bottom surface keyway 7 longitudinal center lines and grinding wheel spindle 19 center lines formation; 2) in the present invention, bearing block 6 Internal Spherical Surface center lines and the formed grinding included angle of grinding wheel spindle 19 center line are 45 °; The feeding mode of lathe 1 only has traverse feed and length feed, be directions X feeding and Y-direction feeding, so want the center line of retainer shaft bearing 6 Internal Spherical Surface and the center line of grinding wheel spindle 19 to intersect at the requirement of the Internal Spherical Surface centre of sphere, just must directions X during grinding mechanism feeding in grinding process and Y-direction with 1:1 feeding simultaneously.
Processing method of the present invention also comprises that the coloration detection in 6 inner sphere working later stages of bearing block and the accuracy of form and position detect.
Coloration detection is that bearing block 6 Internal Spherical Surface shapes adopt corresponding spherical outside surface coloration detection, and bearing block 6 Internal Spherical Surface tinctorial yields require to reach more than 85%.
Concrete steps are as follows: the surface that 1, red lead is coated in uniformly to Internal Spherical Surface; 2, by a standard ball, scrape the red lead in Internal Spherical Surface, need with the red lead of upper surface, wipe off as qualified 80%.
The accuracy of form and position detects and comprises that the detection of bearing block 6 inner sphere radius and the symmetry of bearing block 6 Internal Spherical Surface and bearing block 6 both ends of the surface and bearing block 6 bottom surface keyways 7 and bearing block 6 both ends of the surface detect.
The detection of bearing block 6 inner sphere radius: standard ball 23 is placed in bearing block 6 Internal Spherical Surface, and the peak of measurement standard ball 23 is to the distance H of bearing block 6 end faces, and will measure the value H of gained and the radius R of standard ball 23
markcompare.If H equals R
mark, illustrate that bearing block 6 inner sphere radius meet processing request; If H is not equal to R
mark, illustrate that bearing block 6 inner sphere radius do not meet processing request.
By implementing processing method energy of the present invention grinding, go out Split type bearing support 6 Internal Spherical Surface, can guarantee the symmetry of bearing block 6 Internal Spherical Surface centers and bearing block 6 keyways 7, can guarantee again the symmetry of bearing block 6 Internal Spherical Surface centers and two end faces vertical with bearing block 6 bottom surface keyways 7, realize the hi-Fix of bearing block 6 Internal Spherical Surface centers.
Claims (7)
1. a processing method for Split type bearing support Internal Spherical Surface, is characterized in that: described processing method comprises the following steps:
Step 1, detent mechanism in Split type bearing support interior spherical surface working device is arranged on the workpiece spindle being connected with machine motor, be about to the location-plate in detent mechanism, rebound and positioning key are sleeved on workpiece spindle successively, and on location-plate, be symmetrically fixed with compressor arm, by location-plate, rebound and positioning key and workpiece spindle are affixed, and location-plate and rebound is affixed, affixed after locating by alignment pin between rebound and positioning key, the plane of rebound and positioning key laminating is the axial locating surface of bearing block bottom, positioning key is for guaranteeing the symmetry of bearing support internal sphere center and bearing block bottom surface keyway,
Step 2, is installed on bearing block in detent mechanism, is about to positioning key and snaps in the keyway of bearing block bottom surface, and bearing block is fixed in detent mechanism by positioning key;
Step 3, is arranged on compressor arm end by briquetting, by briquetting by bearing block axial compression on rebound;
Step 4, locating piece is vertically set on rebound, and make locating piece prop up an end face of bearing block, the contact-making surface of this locating piece and bearing block end face is the locating surface of bearing block end face, to guarantee the symmetry of bearing support internal sphere center and two end faces vertical with bearing block bottom surface keyway;
Step 5, is arranged on the angle orientation plate in Split type bearing support interior spherical surface working device on machine tool dragging plate;
Step 6, grinding mechanism in Split type bearing support interior spherical surface working device is arranged on angle orientation plate and the installation site of grinding mechanism relative with above-mentioned detent mechanism, being about to emery wheel axle bed and motor is fixed on angle orientation plate, the middle part of grinding wheel spindle is arranged on emery wheel axle bed, one end of grinding wheel spindle is provided with the belt pulley being connected with motor, the other end is fixed with the bistrique relative with bearing block, and bistrique and bearing support internal sphere form angle, and this angle is grinding included angle; The center line of bearing support internal sphere must intersect at the Internal Spherical Surface centre of sphere with the center line of grinding wheel spindle in same level;
Step 7, shakes first, second handle regulating shaft bearing on lathe and the position of grinding mechanism, and bearing support internal sphere is contacted with the bistrique of grinding mechanism;
Step 8, start the motor in machine motor and grinding mechanism, workpiece spindle and grinding wheel spindle are counter-rotated, the rotation of workpiece spindle drives the bearing block that is fixed on the detent mechanism on workpiece spindle and is fixed in detent mechanism to be rotated simultaneously, and the rotation of grinding wheel spindle drives the bistrique being fixed on grinding wheel spindle to be rotated simultaneously; Adopt generation method to carry out grinding to bearing support internal sphere, bearing block is contrary with the direction of rotation of bistrique, until bearing support internal sphere machines.
2. the processing method of Split type bearing support Internal Spherical Surface according to claim 1, is characterized in that: the grinding included angle that in described step 6, bistrique and bearing support internal sphere form, is the angle of the longitudinal center line formation of grinding wheel spindle center line and bearing block bottom surface keyway; The grinding included angle that described bistrique and bearing support internal sphere form is 45 °, and the angle that grinding wheel spindle center line and bearing block bottom surface keyway longitudinal center line form is 45 °.
3. the processing method of Split type bearing support Internal Spherical Surface according to claim 1, is characterized in that: described processing method also comprises that the coloration detection in bearing support internal sphere processing later stage and the accuracy of form and position detect;
Described coloration detection is that bearing support internal sphere shape adopts corresponding spherical outside surface coloration detection;
Described accuracy detection comprises that the detection of bearing support internal sphere radius and the symmetry of bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface detect.
4. the processing method of Split type bearing support Internal Spherical Surface according to claim 3, it is characterized in that: the detection of described bearing support internal sphere radius is for to be placed on standard ball on bearing support internal sphere, the peak of measurement standard ball is to the distance H of bearing block end face, and will measure the value H of gained and the radius R of standard ball
markcompare, if H equals R
mark, illustrate that bearing support internal sphere radius meets processing request, if H is not equal to R
mark, illustrate that bearing support internal sphere radius does not meet processing request.
5. the processing method of Split type bearing support Internal Spherical Surface according to claim 3, it is characterized in that: the bearing support internal sphere center line that the symmetry of described bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface detects as take perpendicular to bearing block both ends of the surface is datum line, perpendicular to bearing block bottom surface, on bearing block, intercept detection plane, in detection plane, measure respectively bearing support internal sphere edge to distance A and the B of bearing block both ends of the surface, measure keyway edge, bearing block bottom surface to the distance A of bearing block both ends of the surface ' and B', and the value of (A-B) and value (A'-B') are compared, above-mentioned if (A-B) and (A'-B') between difference be controlled at sphere diameter 0.025% within, the symmetry that bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface are described meets processing request, above-mentioned if (A-B) and (A'-B') between difference be greater than 0.025% of sphere diameter, the symmetry that bearing support internal sphere and bearing block both ends of the surface and bearing block bottom surface keyway and bearing block both ends of the surface are described does not meet processing request.
6. the processing method of Split type bearing support Internal Spherical Surface according to claim 3, is characterized in that: in described coloration detection, bearing support internal sphere tinctorial yield requires to reach more than 85%.
7. according to the processing method of the Split type bearing support Internal Spherical Surface described in any claim in claim 1～6, it is characterized in that: the bistrique in described step 6 is hollow cylindrical bistrique, bistrique external diameter is directly proportional to the radius of bearing support internal sphere, bistrique external diameter value D=(R
2+ R
2)
1/2, the radius value that wherein R is bearing support internal sphere to be processed.
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| CN201110025502.6A CN102601702B (en) | 2011-01-24 | 2011-01-24 | Processing method for internal sphere of split bearing seat |
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|---|---|---|---|
| CN201110025502.6A CN102601702B (en) | 2011-01-24 | 2011-01-24 | Processing method for internal sphere of split bearing seat |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103692340A (en) * | 2013-12-10 | 2014-04-02 | 北京航科发动机控制系统科技有限公司 | Grinding rod for inner spherical surface of sliding shoe part |
| CN107150264A (en) * | 2017-05-24 | 2017-09-12 | 上海市轴承技术研究所 | Sphere precision machining method after ceramic coated |
| CN107553309A (en) * | 2017-10-12 | 2018-01-09 | 芜湖市永帆精密模具科技有限公司 | The Internal Spherical Surface lapping device of ball swage core rod |
| RU2706918C1 (en) * | 2019-05-22 | 2019-11-21 | Акционерное общество "Обнинское научно-производственное предприятие "Технология" им. А.Г.Ромашина" | Method of internal spherical surfaces machining |
| CN112025900A (en) * | 2020-07-26 | 2020-12-04 | 杨力 | A high-efficient burnishing device of plank for wood system furniture processing |
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