CN102962630A - Elastic floating rolling device - Google Patents
Elastic floating rolling device Download PDFInfo
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- CN102962630A CN102962630A CN2012104900607A CN201210490060A CN102962630A CN 102962630 A CN102962630 A CN 102962630A CN 2012104900607 A CN2012104900607 A CN 2012104900607A CN 201210490060 A CN201210490060 A CN 201210490060A CN 102962630 A CN102962630 A CN 102962630A
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Abstract
The invention discloses an elastic floating rolling device. The elastic floating rolling device comprises a fixing barrel with an axial line extending in the left-right direction, and a mandrel movably inserted into the fixing barrel in the axial direction of the fixing barrel in a guided manner, wherein the left end of the mandrel extends out of the fixing barrel; a rolling wheel with an axial line extending in the radial direction of the mandrel is rotationally arranged at the extending end of the mandrel; an elastic piece for applying an elastic force from right to left to the mandrel is arranged between the fixing barrel and the mandrel; and the rolling wheel is matched with a workpiece to be processed in a rolling way under the action of the elastic piece. In the process of rolling the workpiece to be processed by the rolling wheel, the rolling wheel constantly presses the surface of the workpiece to be processed and compensates the workpiece to be processed at any time with gradual narrowing of a processing section of the workpiece to be processed under the action of the elastic force of the elastic piece, and the whole rolling process is an elastic rolling process and has a better effect in comparison with a rigid rolling process; and in addition, the elastic floating rolling device has the advantages of simple structure, low cost, and convenience in maintenance and repair besides the automatic compensation function when compared with a rolling device dependent on a hydraulic system.
Description
Technical field
The present invention relates to a kind of device for axle class or the processing of tubing excircle of workpiece, be specifically related to a kind of to foreign round device of the surperficial rolling and processing of floating.
Background technology
The Burnishing process principle be utilize metal cold plasticity characteristics under normal conditions to use specially to roll, compression tool (cutter) applies certain pressure to surface of the work makes the metal surface produce plastic deformation, thereby revise the surface of the work nao-and micro relief, reduce workpiece surface roughness, improve surperficial metallographic structure, form favourable residual stress distribution and improved workpiece mechanical performance and service life.
Chinese patent CN102513836A discloses a kind of hydraulic self-centering, auto-compensation and surface rolling follow-rest, mainly comprise support body unit, hydraulic pressure unit and roll extrusion unit, the support body unit is made of base plate, large hydraulic cylinder seat and arc cantilever, large hydraulic cylinder seat and arc cantilever cast from the base plate by forging type, and the inner concave of arc cantilever is connected with the upper surface of base plate; The roll extrusion unit is made of three stitchings along circumferential arrangement, stitching comprises small oil tank, the piston-rod end of small oil tank is hinged with rolling wheel, the axis of rolling wheel is vertical with the axis of piston rod, wherein two stitchings are fixed on the arc cantilever, and another stitching is fixed on the base plate, and the axes intersect of three stitchings is in the home position place of arc cantilever, and the rolling wheel of each stitching arranges inwardly, and the outer peripheral face of three rolling wheels encloses and forms a circular roll extrusion space; Hydraulic pressure unit comprises the large hydraulic cylinder that is installed on the large hydraulic cylinder seat, in the large hydraulic cylinder hydraulic oil is housed, its oil-out is connected with the oil-in of three small cylinders respectively, cylinder body at large hydraulic cylinder is provided with the screw-nut body that moves up and down for driving its large piston, the lower end of leading screw is connected with its bottom and relatively rotates the pressing plate that cooperates, be connected with stage clip between pressing plate and the large piston, the leading screw backspin promotes pressing plate and moves down together, make the stage clip compression, the elastic force of stage clip again pushing piston moves down, thereby the hydraulic oil in the large hydraulic cylinder is delivered in each small cylinder, can realize that each rolling wheel moves with the piston rod of small cylinder, thereby regulate the size in roll extrusion space.During use, this device and lathe support the use, in tubing or shaft-like workpiece and the coaxial rear insertion roll extrusion space that is connected of vehicle window main shaft, regulate the separately hydraulic fluid flow rate of corresponding small cylinder by the ball valve that arranges on each small cylinder, thereby regulate the compression degree of each rolling wheel and outer surface of workpiece, at last the rolling and processing of realization workpiece under the rotarily driving of lathe spindle.
The roll extrusion follow-rest of said structure, by adjusting the hydraulic fluid flow rate in each small cylinder, three rolling wheels are synchronized with the movement, and then can guarantee that each rolling wheel applies roll extrusion power of the same size to workpiece, has self centering function, guarantee that workpiece is stressed evenly, simultaneously, because large piston relies on the stage clip application of force, after the diameter of workpiece diminishes, large piston continues as each small cylinder fuel feeding under the effect of stage clip, realize the auto-compensation of workpiece.The roll extrusion follow-rest of this structure is to rely on hydraulic system to realize self-centering, auto-compensation, except large and small hydraulic cylinder, various valves also to be installed realize the control of hydraulic fluid flow rate, increased undoubtedly cost, and employing hydraulic system, oil leakage phenomenon occurs easily, and maintenance and repair are also cumbersome.
Summary of the invention
The purpose of this invention is to provide a kind of elastic floating rolling device, adopt hydraulic pressure to realize the technical problem that cost is high, maintenance and repair bother that auto-compensation causes for solving existing apparatus.
Elastic floating rolling device of the present invention adopts following technical scheme: a kind of elastic floating rolling device, comprise stationary magazine creel that axis extends along left and right directions and be inserted in mandrel in the stationary magazine creel along the axially directed movement of stationary magazine creel, the left end of mandrel stretches out described stationary magazine creel and the external part rotation is provided with the rolling wheel that axis radially extends along mandrel, be provided with between stationary magazine creel and the mandrel mandrel is applied by the elastic component of the right side to left elastic force, rolling wheel is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component.
The left end of described stationary magazine creel fixedly is fitted with the fairlead that passes and be slidingly matched with mandrel guiding for mandrel, and the outer peripheral face of mandrel is provided with towards an anticreep step surface left side, that cooperate with the right side block of fairlead.
Be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
Offer the bearing saddle bore that radially extends along it on the described mandrel, axial anticreep is equipped with the axle for bearing assemble in the bearing saddle bore, described bearing holder (housing, cover) is contained on the described axle and is inlaid in the bearing saddle bore, has the annular gear edge that cooperates with an end limit block of bearing between the end of one end of described axle and the bearing saddle bore inwall, the other end is pressed with the other end limit block fitted bearing lid with bearing, the inner end face of described mandrel offers and is communicated with bearing saddle bore, mounting groove for described rolling wheel assembling, between the trough wall surface of the relative bearing cap of mounting groove and the bearing cap wheel shaft is installed, described rolling wheel turning set is located on the wheel shaft.
A kind of elastic floating rolling device, comprise the roll extrusion unit on self-centering chuck and corresponding each claw that is fixed on described self-centering chuck, the roll extrusion unit comprise stationary magazine creel that axis radially extends along self-centering chuck and vertically guiding movement be inserted in mandrel in the stationary magazine creel, be provided with the elastic component that mandrel is applied elastic force from outside to inside between stationary magazine creel and the mandrel, described stationary magazine creel is stretched out in the inner of mandrel, and external part rotates respectively and is provided with the rolling wheel that axis radially extends along mandrel, the axes intersect of each stationary magazine creel is in a bit, and the rolling wheel of each roll extrusion unit is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component separately.
The inner of described stationary magazine creel fixedly is fitted with the fairlead that passes and be slidingly matched with mandrel guiding for mandrel, and the outer peripheral face of mandrel is provided with anticreep step surface, that cooperate with the outer face block of fairlead inwardly.
Be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
Offer the bearing saddle bore that radially extends along it on the described mandrel, axial anticreep is equipped with the axle for bearing assemble in the bearing saddle bore, described bearing holder (housing, cover) is contained on the described axle and is inlaid in the bearing saddle bore, has the annular gear edge that cooperates with an end limit block of bearing between the end of one end of described axle and the bearing saddle bore inwall, the other end is pressed with the other end limit block fitted bearing lid with bearing, the inner end face of described mandrel offers and is communicated with bearing saddle bore, mounting groove for described rolling wheel assembling, between the trough wall surface of the relative bearing cap of mounting groove and the bearing cap wheel shaft is installed, described rolling wheel turning set is located on the wheel shaft.
A kind of elastic floating rolling device, comprise be used to being installed on the lathe follow-rest, clamp the expansion chuck of tubing workpiece and be used for the coaxial self-centering chuck that is assemblied on the machine tool chief axis, be installed with respectively the roll extrusion unit on each claw of self-centering chuck, the roll extrusion unit comprise stationary magazine creel that axis radially extends along self-centering chuck and vertically guiding movement be inserted in mandrel in the stationary magazine creel, be provided with the elastic component that mandrel is applied elastic force from outside to inside between stationary magazine creel and the mandrel, described stationary magazine creel is stretched out in the inner of mandrel, and external part rotates respectively and is provided with the rolling wheel that axis radially extends along mandrel, the axes intersect of each stationary magazine creel is in a bit, and the rolling wheel of each roll extrusion unit is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component separately.
Be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
A kind of elastic floating rolling device, comprise be used to the clamp mechanism that holds out against the shaft-like workpiece two ends and for the self-centering chuck that is installed on the lathe follow-rest, clamp mechanism comprises for coaxial and is assemblied in first top and be used for being installed on the tail stock for machine tool on the machine tool chief axis, with the first top coaxial be oppositely arranged second top, be installed with respectively the roll extrusion unit on each claw of self-centering chuck, the roll extrusion unit comprise stationary magazine creel that axis radially extends along self-centering chuck and vertically guiding movement be inserted in mandrel in the stationary magazine creel, be provided with the elastic component that mandrel is applied elastic force from outside to inside between stationary magazine creel and the mandrel, described stationary magazine creel is stretched out in the inner of mandrel, and external part rotates respectively and is provided with the rolling wheel that axis radially extends along mandrel, the axes intersect of each stationary magazine creel is in a bit, and the rolling wheel of each roll extrusion unit is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component separately.
Be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
Adopt the elastic floating rolling device of said structure, because rolling wheel is used for cooperating with the outer surface roll extrusion of workpiece, and the elastic component between stationary magazine creel and the mandrel applies elastic force towards workpiece to mandrel and rolling wheel, in the process of rolling wheel and workpiece to be processed rolling and processing, rolling wheel is subject to the resilient force of elastic component, all the time be pressed on the workpiece to be processed surface and along with the processing sections of workpiece to be processed diminishes gradually, compensate to workpiece to be processed at any time, and whole rolling and processing is the elasticity rolling and processing, phase specific rigidity rolling and processing, better effects if; In addition, except the function with auto-compensation, compare the rolling device that relies on hydraulic system, also have simple in structurely, cost is low, and maintenance and repair advantage easily.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the present invention;
Fig. 2 is the structural representation of the stitching among Fig. 1;
Fig. 3 is the working state figure that the present invention processes the tubing workpiece;
Fig. 4 is that the K of Fig. 3 is to partial view;
Fig. 5 is the working state figure of working shaft-like workpiece of the present invention;
Fig. 6 is that the K of Fig. 5 is to partial view.
The specific embodiment
The embodiment one of elastic floating rolling device of the present invention: as shown in Figure 1 and Figure 2, comprise self-centering chuck, self-centering chuck adopts scroll chuck, comprise chuck body 1 and three claws 2 that move radially along chuck body 1, be welded with respectively the mounting cylinder that an axis radially extends along chuck body on three claws 2 of self-centering chuck, the central axis of the axis of each mounting cylinder and chuck body 1 intersects vertically and a bit, and is fixed with the roll extrusion unit in the mounting cylinder.The roll extrusion unit comprises stationary magazine creel 3, mandrel 5 and rolling wheel 8, stationary magazine creel 3 is fixed in the mounting cylinder by screw is coaxial, end opening in it, described mandrel 5 gaps are inserted in the stationary magazine creel 3, stationary magazine creel 3 and mounting cylinder are stretched out respectively in the inner of mandrel 5, fixedly are fitted with the fairlead 6 that is slidingly matched with mandrel 5 guiding in the gap between stationary magazine creel 3 and the mandrel 5; Has the convex annular edge on the outer peripheral face of mandrel 5, the convex annular edge be the anticreep step surface that cooperates with the outer face block of fairlead 6 towards inner face, each convex annular edge be the step surface that resets towards the outer face, be top-loaded with reseting pressuring spring 4 between the bottom surface of respectively reset step surface and stationary magazine creel 3; Described rolling wheel 8 is arranged at separately corresponding mandrel 5 the inners, and its axis is parallel with the axis of chuck body 1, and the inner peripheral surface of each rolling wheel 8 encloses and forms a circular roll extrusion space, and insert for axle class to be processed or tubing workpiece in this roll extrusion space.
The inside and outside position of present embodiment all is the radial direction with reference to chuck body 1 place circumference, namely the closer to the axis of chuck body 1, the position is more inner, during application, by regulating the radial position of three claws 2 on the chuck body 1, make the rolling wheel 8 of three stitchings compress respectively workpiece to be processed, this moment, the outer peripheral face of each rolling wheel 8 was tangent with the outer peripheral face of workpiece to be processed respectively, so self-centering chuck can be realized the self-centering of each roll extrusion unit.
In the present embodiment, in order to improve the rigidity of each rolling wheel 8, offer the bearing saddle bore that radially extends along it at mandrel 5, the three grade shoulder holes of bearing saddle bore for radially successively decreasing, comprise the macropore section, interstitial hole section and aperture section, wherein the part between aperture section and the interstitial hole section is annular gear edge, the coaxial axle 7 that is fitted with in the aperture section, axle 7 is multidiameter, its enlarged diameter section cooperates with mandrel 5 blocks, be set with bearing 9 on the reduced diameter section, the inner ring of bearing 9 and axle 7 interference fit, rotate around axle 7 outer ring, in the macropore section, be embedded with bearing cap 10, be connected with anti-loosing screw between the reduced diameter section of bearing cap 10 and axle 7, under the effect of bearing cap 10 and the enlarged diameter section of axle 7, axle 7 has been realized axial anticreep; In addition, under the effect on bearing cap 10 and annular gear edge, bearing 9 is flush-mounted in the interstitial hole section.The inner end face of described mandrel 5 offer respectively be communicated with the macropore section of bearing saddle bore and interstitial hole section, for the mounting groove of described rolling wheel assembling, be top-loaded with wheel shaft between the trough wall surface of the relative bearing cap 10 of mounting groove and the bearing cap 10, described rolling wheel 8 turning sets are located on the wheel shaft.
In other embodiments, also fairlead can be set, mandrel can be directly and the stationary magazine creel guiding be slidingly matched, mandrel also can not arrange the anticreep step surface certainly, does not need axial anticreep also can realize the roll extrusion of floating.
In other embodiments, bearing saddle bore also can be the secondary shoulder hole, and bearing cap directly is fitted on the outer peripheral face of mandrel and gets final product.Certainly, bearing saddle bore also can be for blind hole, and axle directly is fixed on the bottom surface, hole of blind hole, also with regard to not needing axle is carried out axial anticreep, relies on bearing cap and blind hole bottom surface can realize that bearing is inlaid in the blind hole.
The embodiment two of elastic floating rolling device of the present invention: as shown in Figure 2, the structure of the roll extrusion unit among its structure and the embodiment one is consistent, and its content does not repeat them here, and the rolling device of present embodiment is the single-point rolling and processing, do not need self-centering, but still have the function of auto-compensation.
The embodiment three of elastic floating rolling device of the present invention: as shown in Figure 3, Figure 4, comprise the coaxial self-centering chuck that is oppositely arranged 11 and expansion chuck 13, be installed with respectively the roll extrusion unit on each claw of self-centering chuck 11, self-centering chuck among the structure of self-centering chuck 11 and roll extrusion unit and the embodiment one and the structure of roll extrusion unit are consistent, and its content does not repeat them here.During present embodiment processing tubing workpiece 12, expansion chuck 13 is fixed on the lathe follow-rest 14, and an end of tubing workpiece 12 is installed between each claw of expansion chuck 13, and self-centering chuck 11 is coaxial to be fixed on the main shaft of lathe.First being processed, regulate three radial positions of claw on chuck body of self-centering chuck by chuck handle, regulate the compression degree of each rolling wheel and tubing workpiece, because size, structure and the position consistency of three stitchings, therefore each rolling wheel is basically identical and synchronous to the thrust of tubing workpiece, can self-centering; Regulate complete after, machine tool chief axis work, self-centering chuck rotates with the lathe main shaft, and then realizes the rolling and processing to the tubing workpiece; In process, the external diameter of the processing sections of tubing workpiece dwindles gradually, and under the effect of each reseting pressuring spring, can realize auto-compensation.Final surface roughness value can be by the Ra6.3 before the processing～3.2, processing rear surface roughness value can reach Ra0.16～Ra0.08, machining accuracy can reach IT9～IT10 level tolerance, improve case hardness 5～50%, fatigue strength 5～50%, the cementation zone degree of depth reaches 0.2～2 millimeter.
The embodiment four of elastic floating rolling device of the present invention: such as Fig. 5, shown in Figure 6, comprise clamp mechanism, self-centering chuck 18, clamp mechanism is mainly by two first top 15 and second top 19 consisting of of axially being oppositely arranged, be mainly used in working shaft-like workpiece 16, on each claw of self-centering chuck 18, be installed with respectively the roll extrusion unit, the structure of the self-centering chuck of present embodiment and roll extrusion unit is consistent with the structure of the self-centering chuck of above-described embodiment and roll extrusion unit, and its content does not repeat them here.During working shaft-like workpiece, the first top 15 coaxial being assemblied on the machine tool chief axis, the second top 19 coaxial being assemblied on the tail stock for machine tool 20, and self-centering chuck 18 is fixed on the lathe follow-rest 17, the process principle of shaft-like workpiece is identical with the process principle of tubing workpiece, can realize self-centering and auto-compensation equally.
Claims (12)
1. elastic floating rolling device, it is characterized in that: comprise stationary magazine creel that axis extends along left and right directions and be inserted in mandrel in the stationary magazine creel along the axially directed movement of stationary magazine creel, the left end of mandrel stretches out described stationary magazine creel and the external part rotation is provided with the rolling wheel that axis radially extends along mandrel, be provided with between stationary magazine creel and the mandrel mandrel is applied by the elastic component of the right side to left elastic force, rolling wheel is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component.
2. elastic floating rolling device according to claim 1, it is characterized in that: the left end of described stationary magazine creel fixedly is fitted with the fairlead that passes and be slidingly matched with mandrel guiding for mandrel, and the outer peripheral face of mandrel is provided with towards an anticreep step surface left side, that cooperate with the right side block of fairlead.
3. elastic floating rolling device according to claim 1 and 2, it is characterized in that: be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
4. elastic floating rolling device according to claim 3, it is characterized in that: offer the bearing saddle bore that radially extends along it on the described mandrel, axial anticreep is equipped with the axle for bearing assemble in the bearing saddle bore, described bearing holder (housing, cover) is contained on the described axle and is inlaid in the bearing saddle bore, has the annular gear edge that cooperates with an end limit block of bearing between the end of one end of described axle and the bearing saddle bore inwall, the other end is pressed with the other end limit block fitted bearing lid with bearing, the inner end face of described mandrel offers and is communicated with bearing saddle bore, mounting groove for described rolling wheel assembling, between the trough wall surface of the relative bearing cap of mounting groove and the bearing cap wheel shaft is installed, described rolling wheel turning set is located on the wheel shaft.
5. elastic floating rolling device, it is characterized in that: comprise the roll extrusion unit on self-centering chuck and corresponding each claw that is fixed on described self-centering chuck, the roll extrusion unit comprise stationary magazine creel that axis radially extends along self-centering chuck and vertically guiding movement be inserted in mandrel in the stationary magazine creel, be provided with the elastic component that mandrel is applied elastic force from outside to inside between stationary magazine creel and the mandrel, described stationary magazine creel is stretched out in the inner of mandrel, and external part rotates respectively and is provided with the rolling wheel that axis radially extends along mandrel, the axes intersect of each stationary magazine creel is in a bit, and the rolling wheel of each roll extrusion unit is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component separately.
6. elastic floating rolling device according to claim 5, it is characterized in that: the inner of described stationary magazine creel fixedly is fitted with the fairlead that passes and be slidingly matched with mandrel guiding for mandrel, and the outer peripheral face of mandrel is provided with anticreep step surface, that cooperate with the outer face block of fairlead inwardly.
7. according to claim 5 or 6 described elastic floating rolling devices, it is characterized in that: be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
8. elastic floating rolling device according to claim 7, it is characterized in that: offer the bearing saddle bore that radially extends along it on the described mandrel, axial anticreep is equipped with the axle for bearing assemble in the bearing saddle bore, described bearing holder (housing, cover) is contained on the described axle and is inlaid in the bearing saddle bore, has the annular gear edge that cooperates with an end limit block of bearing between the end of one end of described axle and the bearing saddle bore inwall, the other end is pressed with the other end limit block fitted bearing lid with bearing, the inner end face of described mandrel offers and is communicated with bearing saddle bore, mounting groove for described rolling wheel assembling, between the trough wall surface of the relative bearing cap of mounting groove and the bearing cap wheel shaft is installed, described rolling wheel turning set is located on the wheel shaft.
9. elastic floating rolling device, it is characterized in that: comprise be used to being installed on the lathe follow-rest, clamp the expansion chuck of tubing workpiece and be used for the coaxial self-centering chuck that is assemblied on the machine tool chief axis, be installed with respectively the roll extrusion unit on each claw of self-centering chuck, the roll extrusion unit comprise stationary magazine creel that axis radially extends along self-centering chuck and vertically guiding movement be inserted in mandrel in the stationary magazine creel, be provided with the elastic component that mandrel is applied elastic force from outside to inside between stationary magazine creel and the mandrel, described stationary magazine creel is stretched out in the inner of mandrel, and external part rotates respectively and is provided with the rolling wheel that axis radially extends along mandrel, the axes intersect of each stationary magazine creel is in a bit, and the rolling wheel of each roll extrusion unit is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component separately.
10. elastic floating rolling device according to claim 9, it is characterized in that: be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
11. elastic floating rolling device, it is characterized in that: comprise be used to the clamp mechanism that holds out against the shaft-like workpiece two ends and for the self-centering chuck that is installed on the lathe follow-rest, clamp mechanism comprises for coaxial and is assemblied in first top and be used for being installed on the tail stock for machine tool on the machine tool chief axis, with the first top coaxial be oppositely arranged second top, be installed with respectively the roll extrusion unit on each claw of self-centering chuck, the roll extrusion unit comprise stationary magazine creel that axis radially extends along self-centering chuck and vertically guiding movement be inserted in mandrel in the stationary magazine creel, be provided with the elastic component that mandrel is applied elastic force from outside to inside between stationary magazine creel and the mandrel, described stationary magazine creel is stretched out in the inner of mandrel, and external part rotates respectively and is provided with the rolling wheel that axis radially extends along mandrel, the axes intersect of each stationary magazine creel is in a bit, and the rolling wheel of each roll extrusion unit is used for cooperating with the workpiece to be processed roll extrusion under the effect of elastic component separately.
12. elastic floating rolling device according to claim 11 is characterized in that: be embedded with the bearing that cooperates with the rolling wheel rolling friction in the described mandrel, the axis of described bearing is parallel with the axis of rolling wheel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210490060.7A CN102962630B (en) | 2012-11-27 | 2012-11-27 | A kind of elastic floating rolling device |
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| CN201210490060.7A CN102962630B (en) | 2012-11-27 | 2012-11-27 | A kind of elastic floating rolling device |
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| CN102962630B CN102962630B (en) | 2015-10-07 |
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| CN103978098A (en) * | 2014-05-20 | 2014-08-13 | 郑小玲 | Elastic buffer-type propping roller |
| CN105252206A (en) * | 2015-11-30 | 2016-01-20 | 山东大学 | Double-side rolling device for thin-wall structure |
| CN107470421A (en) * | 2017-08-25 | 2017-12-15 | 中国人民解放军第五七二工厂 | The unilateral rolling fastener of bearing of closing space is placed in a kind of |
| CN109648251A (en) * | 2019-02-28 | 2019-04-19 | 河南神龙石油钻具有限公司 | A kind of rolling device for hole machined in no magnetite oil drilling tool |
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| CN105252206B (en) * | 2015-11-30 | 2018-04-13 | 山东大学 | A kind of bilateral rolling device for thin-wall construction |
| CN107470421A (en) * | 2017-08-25 | 2017-12-15 | 中国人民解放军第五七二工厂 | The unilateral rolling fastener of bearing of closing space is placed in a kind of |
| CN107470421B (en) * | 2017-08-25 | 2024-02-27 | 中国人民解放军第五七二一工厂 | Bearing unilateral rolling closing device with inner side arranged in closed space |
| CN109648251A (en) * | 2019-02-28 | 2019-04-19 | 河南神龙石油钻具有限公司 | A kind of rolling device for hole machined in no magnetite oil drilling tool |
| CN109648251B (en) * | 2019-02-28 | 2024-03-15 | 河南神龙石油钻具有限公司 | Rolling device for processing inner hole of magneto-free oil drilling tool |
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| Publication number | Publication date |
|---|---|
| CN102962630B (en) | 2015-10-07 |
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