CN203282317U - Five-axis numerical control grinder - Google Patents
Five-axis numerical control grinder Download PDFInfo
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- CN203282317U CN203282317U CN2013202507079U CN201320250707U CN203282317U CN 203282317 U CN203282317 U CN 203282317U CN 2013202507079 U CN2013202507079 U CN 2013202507079U CN 201320250707 U CN201320250707 U CN 201320250707U CN 203282317 U CN203282317 U CN 203282317U
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- tapered sleeve
- numerical control
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Abstract
The utility model discloses a five-axis numerical control grinder and belongs to the technical field of numerical control machine tools. The grinder comprises a beam slide; the beam slide is driven by a first power installation and installed on a beam along an X-axis in a sliding mode; a rotation slide which is driven by a second power installation and rotates along a B-axis is arranged on the beam slide; a ram which is driven by a third power installation and slides along a Z-axis is arranged on the rotation slide; a first taper sleeve which is driven by a fourth power installation and rotates along a C-axis is arranged on the ram; a second taper sleeve which is driven by a fifth power installation and rotates along an A-axis is arranged on the first taper sleeve; a grinding power head is installed on the second taper sleeve; the B-axis is perpendicular to the plane where the X-axis and the Z-axis are located; the C-axis is perpendicular to the B-axis; the A-axis is perpendicular to the C-axis; when the B-axis returns to zero, the X-axis is perpendicular to the Z-axis. Machining of cross-shaped guide rails, all planes and taper faces can be achieved by one-time clamping. In addition, interpolation is not required, machining efficiency is high, and machining accuracy is high. Meanwhile, the five-axis numerical control grinder is compact in structure, fast and reliable in action and wide in application range, and has high cost performance.
Description
Technical field
The utility model belongs to the numerical control machine tool technique field, relates in particular to a kind of five-shaft numerical control sharpener.
Background technology
along with the fast development of global machinery manufacturing industry and the raising day by day of requirement on machining accuracy, the lathe equipment has entered numerical control, intelligent, high efficiency, and be tailored version, especially the high-precision grinder of end product, its specificity is particularly outstanding and expensive, the grinding form that at present domestic and international machine tool field adopts mostly is the private use plane grinding machine, special-purpose internal and external grinding machine and grinding function assembly, in the processing and manufacturing process, all there is function singleness in they, be single plane or taper surface processing, the processing of completing workpiece needs multiple clamping, and then multiple clamping causes machining accuracy to reduce, affect working (machining) efficiency.Need clamping while for example processing cross guide rail repeatedly; Need interpolation while for example processing the large conical surface, large V-type face again, the rough surface after processing, precision is low.Have simultaneously expensive defect, except extremely needing investment, most producers are because of the expensive investment of avoiding grinding machine, thereby affect the precision improvement of machinery manufacturing industry.
Simultaneously, present stage, most of grinding bed dresser all was arranged on bistrique, and not only complex structure, the restriction that is subjected to installation site and trimmer poor rigidity,, as realizing automatic grinding wheel finishing, need to increase by two numerical control axles, thereby cause cost to increase.
The utility model content
The purpose of this utility model is to provide a kind of five-shaft numerical control sharpener,, to solve the above-mentioned technical problem that exists in prior art, realizes that clamped one time just can carry out the plane in each orientation of workpiece and processing and the assurance machining accuracy of cross guide rail and the conical surface.
for solving the problems of the technologies described above, the technical solution of the utility model is: the five-shaft numerical control sharpener, comprise by the first power set and drive and along X-axis, be slidably mounted on crossbeam slide on crossbeam, described crossbeam slide is provided with by the second power set driving and along the rotating rotary slide base of B axle, described rotary slide base is provided with the ram that is driven and slided along Z axis by the 3rd power set, described ram is provided with by the 4th power set driving and along rotating the first tapered sleeve of C axle, described the first tapered sleeve is provided with by the 5th power set driving and along rotating the second tapered sleeve of A axle, on described the second tapered sleeve, the grinding unit head is installed, described B axle is perpendicular to the plane at described X-axis and described Z axis place, and described C axle is perpendicular to described B axle, and described A axle is perpendicular to described C axle, and when described B axle back to zero, described X-axis and described Z axis are perpendicular.
As a kind of improvement, the trimmer for the finishing grinding knife tool is installed on described crossbeam.
As further improvement, described ram is provided with the first cone chamber suitable with described the first tapered sleeve, and described ram is provided with the die springs that clamps described the first tapered sleeve; Described the first tapered sleeve is provided with the second cone chamber suitable with described the second tapered sleeve, and described the second tapered sleeve is provided with the butterfly spring of described the second tapered sleeve of chucking; Be provided with hydraulic clamp between described ram and described the first tapered sleeve.
As a kind of improvement, described rotary slide base is provided with the clamping device that clamps described crossbeam slide, and described clamping device is arranged on the both sides of described rotary slide base.
As further improving, be provided with the gyroaxis that rotates around described B axle between described crossbeam slide and described rotary slide base, be provided with clamping cylinder between described gyroaxis and described rotary slide base, described gyroaxis is fixed on described crossbeam slide away from an end of described rotary slide base.
, as further improving again, be equipped with wear-resistant coating on described gyroaxis and described the first tapered sleeve and described the second tapered sleeve.
As a kind of improvement, described the first power set and described the 3rd power set include the ball screw structure, and described the second power set, described the 4th power set and described the 5th power set include worm gear structure.
As further improving again, the worm gear of described the second power set is worm sector.
As further improving, described five-shaft numerical control sharpener also comprises B shaft encoder, C shaft encoder and the A shaft encoder that all with ECU, is connected.
Owing to having adopted technique scheme, the beneficial effects of the utility model are: because rotary slide base drives the ram revolution, and by ram along the Z axis sliding feed, namely realize the feeding of the grinding unit head of installing on ram, realize the conical surface and the processing of V-type face; Realize that plane machining on the basis of ram feeding,, by the rotation on the A axle in the revolution on the C axle and the second tapered sleeve of the first tapered sleeve, reaches the processing that realizes each plane of workpiece and cross guide rail.In sum, this five-shaft numerical control sharpener has realized that clamped one time can realize cross guide rail and each plane and taper surface processing be need not interpolation during the processing conical surface and just can reach the smooth effect of finished surface, has improved working (machining) efficiency, and processing effect is good, machining accuracy is high, and this compact conformation, move quick reliable simultaneously, easy to use, with low cost, have higher cost performance, applied widely.
Due to the trimmer that is equipped with on crossbeam for the finishing grinding knife tool, thereby realized the automatic dressing to the grinding knife tool after wearing and tearing, this is simple in structure, superior performance, realized fast the automatic dressing of grinding knife tool and taking full advantage of of space, solved on the general NC grinding machine when trimmer is installed the grinding knife tool automatic dressing, needing increases by two numerical control axles, the problem that causes cost to increase.
Because ram is provided with the first cone chamber suitable with the first tapered sleeve, ram is provided with the die springs that clamps the first tapered sleeve; The first tapered sleeve is provided with the second cone chamber suitable with the second tapered sleeve, and the second tapered sleeve is provided with the butterfly spring of chucking the second tapered sleeve; Be provided with hydraulic clamp between ram and the first tapered sleeve.Thereby guaranteed the smooth revolution of the first tapered sleeve and the second tapered sleeve,, simultaneously by die springs and butterfly spring, guaranteed to add and make man-hour the first tapered sleeve and the second tapered sleeve be in the state of fixing to clamp, realized high-rate grinding.
Be equipped with the clamping device of clamping crossbeam slide due to the both sides of rotary slide base; And be provided with clamping cylinder between the gyroaxis that is provided with between crossbeam slide and rotary slide base and rotary slide base, thereby make crossbeam slide and rotary slide base be in stationary state, further guaranteed high-rate grinding.
Owing to being equipped with wear-resistant coating on gyroaxis and the first tapered sleeve and the second tapered sleeve, thereby reduce the wearing and tearing that relative motion produces, improved service life, reduced manufacturing cost.
, because the worm gear of the second power set is worm sector, guarantee that in situation that revolution requires, mounting structure is more rationally compact.
Also comprise B shaft encoder, C shaft encoder and the A shaft encoder that all with ECU, is connected due to the five-shaft numerical control sharpener, realized quick, the accurately rotation of all parts, guarantee ground effect, further guaranteed grinding accuracy.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation when in Fig. 1, trimmer is repaired bistrique;
Fig. 3 is the structural representation of rotary slide base in Fig. 1;
Fig. 4 is the structural representation of Fig. 1 middle cross beam slide;
Fig. 5 is the structural representation that Fig. 1 middle cross beam slide and rotary slide base clamp;
Fig. 6 is the structural representation of gyroaxis in Fig. 1;
Fig. 7 is the structural representation of the first tapered sleeve and the second tapered sleeve in Fig. 1;
Fig. 8 is the structural representation of the processing workpiece that can complete of the utility model embodiment clamped one time;
In figure, the 1-ram; The 2-motor; The 3-belt; The 4-nut seat; The 5-clamping cylinder; The 6-encoder; The 7-ball-screw; The 8-gyroaxis; The 9-main shaft; The 10-grinding knife tool; 11-the 3rd worm screw; 12-worm screw case; 13-the second worm gear; The 14-trimmer; The 15-crossbeam; 16-crossbeam slide; The 17-rotary slide base; 18-the first worm screw; The 19-collision block; 20-dish spring chucking oil cylinder; 21-servo deceleration machine; The 22-servomotor; 23-the first worm gear; 24-the second worm screw; 25-the 3rd worm gear; 26-the first tapered sleeve; The 27-casing; 28-the second tapered sleeve; The 29-knife board; 30-the second locating shaft; 31-the first locating shaft; The 32-pressing plate; The 33-belt pulley; The 34-die springs; The 35-butterfly spring.
The specific embodiment
, in order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
as shown in Fig. 1 and Fig. 2 are common, the five-shaft numerical control sharpener that this utility model provides comprises by the first power set and drives and along X-axis, be slidably mounted on crossbeam slide 16 on crossbeam 15, trimmer 14 for finishing grinding knife tool 10 is installed on this crossbeam 15, this crossbeam slide 16 is provided with by the second power set driving and along the rotating rotary slide base 17 of B axle, be provided with gyroaxis 8 between this crossbeam slide 16 and rotary slide base 17, this rotary slide base 17 is provided with the ram 1 that is driven and slided along Z axis by the 3rd power set, this ram 1 is provided with by the 4th power set driving and along rotating the first tapered sleeve 26 of C axle, this first tapered sleeve 26 is arranged in the first cone chamber that ram 1 is that be provided with and the first tapered sleeve 26 is suitable, be evenly distributed with the die springs 34 of first tapered sleeve 26 that is fixedly clamped between this ram 1 and the first tapered sleeve 26, also be provided with between this ram 1 and the first tapered sleeve 26 and prevent that the first tapered sleeve 26 is around the rotating hydraulic clamp of C axle, this first tapered sleeve 26 is provided with casing 27 and is bolted fixing, be provided with the first locating shaft 31 between this first tapered sleeve 26 and casing 27, this casing 27 is provided with the second cone chamber, this second cone is provided with that the 5th power set drive in chamber and along rotating the second tapered sleeve 28 of A axle, this second tapered sleeve 28 is provided with the butterfly spring 35 of chucking the second tapered sleeve 28, on this second tapered sleeve 28, the grinding unit head is installed, this grinding unit head comprises the main shaft 9 that is arranged in knife board 29, on this main shaft 9, grinding knife tool 10 is installed, be provided with the second locating shaft 30 between this second tapered sleeve 28 and knife board 29, this X-axis and Z axis are perpendicular when B axle back to zero, if X-axis and Z axis out of plumb when machining large V guide rail and large cone face, this B axle is perpendicular to the plane at X-axis and Z axis place, and this C axle is perpendicular to the B axle, and this A axle is perpendicular to the C axle.
These first power set and the 3rd power set include ball screw 7 structures, the ball-screw 7 of the 3rd power set is automatically connected in ball-screw 7 upper belt pulleys 33 by motor 3 by belt 3 bands and rotates, and this ball-screw 7 is provided with nut seat 4 and is fixedly mounted on rotary slide base 17; These second power set comprise the first worm gear 23 and the first worm screw 18, this first worm gear 23 is preferably fan type worm gear (referring to Fig. 4), this first worm screw 18 is provided with worm screw case 12, this worm screw case 12 is fixedly mounted on rotary slide base 17, the 4th power set comprise the second worm gear 13 and the second worm screw 24, the 5th power set comprise the 3rd worm gear 25 and the 3rd worm screw 11, and this first worm screw 18 and the second worm screw 24 and the 3rd worm screw 11 drive servo deceleration machine 21 by servomotor 22 and drive.
the both sides of this rotary slide base 17 are equipped with dish spring chucking oil cylinder 20(referring to Fig. 3 and Fig. 5), this rotary slide base 17 be equipped with through hole on the crossbeam slide is connected and by the gyroaxis 8 that is arranged in through hole, connect, the end that these gyroaxis 8 diameters are little is fixed on crossbeam slide 16 by location-plate, the end cooperation that these gyroaxis 8 diameters are large is arranged on rotary slide base 17, also be provided with pressing plate 32 on this rotary slide base 17, be provided with hydraulic clamp between the end that these gyroaxis 8 diameters are large and pressing plate 32, these hydraulic clamp wraparound rotating shaft 8 even branches of circumferencial direction, this hydraulic clamp is preferably clamping cylinder 5(referring to Fig. 6).In order to make circular guideway face inner edge with four beyond interior clamping cylinder 5 and circular guideway face outer edge dish spring chucking oil cylinder 20 actings in conjunction that are distributed on the gyroaxis surrounding, better make rotary slide base 17 be fixed on the purpose that reaches high-rate grinding on crossbeam slide 16, circular guideway face inner edge is all to hang down 0.2mm than circular guideway face beyond interior and circular guideway face outer edge.
Be equipped with wear-resistant coating on this gyroaxis 8, the first tapered sleeve 26 and the second tapered sleeve 28, this wear-resistant coating be as: TS312 or TS316 Friction-Reducing Coating.
The formation of this wear-resistant coating (being the technique for applying of TS312 or TS316 Friction-Reducing Coating) needs through following technical process:
A, surface treatment: after oil meter face heating oil removing is arranged, true qualities are seen in sandblast; Post-drying, sandblast need repeatedly be cleaned to seeing true qualities in the surface that polluted by chemical mediator;
B, cleaning: the residue after careful clean surface dirt and processing, until without any dirt;
C, mixing: TS312 or TS316 are matched well glue and stir according to the weight of 7:1, and be finished within operating period;
D, coating: first gluing a little, firmly press down and repeatedly smear, make contact surface complete wetting glue, it is filled up and deaeration, then be coated with remaining glue, reserve allowance;
E, curing: assembling is come into operation after solidifying; , if reach best high-temperature resistant result, must carry out heating cure.
Ram 1 near belt pulley 33 1 ends is provided with collision block 19, and the ram 1 that is positioned at ball-screw 7 end of travels is provided with collision block 19, and the distance of this collision block 19 and ball-screw 7 distal end faces is less than the length of nut seat 4.
This five-shaft numerical control sharpener also comprises and all with ECU, is connected and all is arranged on encoder 6 on A axle, B axle and C axle.
For the ease of understanding, the following operation principle (referring to Fig. 8) that has provided the five-shaft numerical control sharpener that the utility model provides:
when workpiece is carried out the man-hour that adds of taper surface, grinding element 10 is that emery wheel is in position as shown in Figure 1, starting 21 pairs of the first worm screws 18 of servomotor 22 drive servo deceleration machines drives, because the first worm gear 23 is fixedly mounted on crossbeam slide 16, an end of gyroaxis 8 is fixedly mounted on crossbeam slide 16 simultaneously, thereby the rotary slide base that is fixed together 17 and nut seat 4 rotate on the B axle around the inverted T shape gyroaxis, again because nut seat 4 is arranged on the ball-screw 7 of ram 1, and then ball-screw 7 rotates along the B axle with the stressed drive ram 1 in junction of nut seat 4, till turning to the angle of inclination of processing request, the main shaft that grinding element 10 namely is installed reaches the angle of inclination of job requirement, then the motor 2 that starts on ram 1 drives belt pulley 33 rotations that are arranged on ball-screw 7 by belt 3, thereby ball-screw 7 drives rams 1 to move around along Z axis nut seat 4 is interior, realize the feeding of grinding element, reach the purpose of processing taper surface.When workpiece is carried out plane machining, as shown in Figure 2, on the basis of ram 1 feeding, the second worm gear 13, second worm screw 24 drive the first tapered sleeves 26 rotations and the 3rd worm gear 25, the 3rd worm screw 11 that drive ram 1 end drive the second tapered sleeves 28 respectively around C axle and the rotation of A axle, the angle suitable according to the different rotary of machined surface, reach the processing that realizes each plane of workpiece.This five-shaft numerical control sharpener has realized that clamped one time can realize cross guide rail and each plane and taper surface processing, need not interpolation during the processing conical surface and just can reach the smooth effect of finished surface, improved working (machining) efficiency, and processing effect is good, machining accuracy is high, this compact conformation simultaneously, action is quick reliable, easy to use, with low cost, have higher cost performance, applied widely.Simultaneously when grinding element 10 turns to the direction consistent with rotary slide base, ram 1 moves, trimmer 14 also can be revised grinding element 10, realized the fast automatic finishing of 14 pairs of grinding elements 10 of trimmer, reduced manufacturing cost, and this is simple in structure, superior performance, and be fully used in the space on ram 1.
In order to guarantee grinding accuracy, while carrying out grinding, be arranged on dish spring chucking oil cylinder 20 chuckings of rotary slide base 17 both sides, rotary slide base 17 is fixed on crossbeam slide 16, be provided with equally distributed clamping cylinder 5 at the large end of gyroaxis 8 diameters around circumferencial direction simultaneously and clamp, rotary slide base 17 is fixed on crossbeam slide 16; Hydraulic clamp oil-feed on ram 1 simultaneously, prevent the first tapered sleeve 26 revolutions, reaches the purpose of high-rate grinding.
For all parts is moved fast, accurately, be provided with encoder 6 on gyroaxis 8, the first tapered sleeve 26 and the second tapered sleeve 28, further guaranteed machining accuracy.
For fear of ram 1 back and forth during feeding and the nut seat 4 on ball-screw 7 bump and cause damage, be provided with collision block 19 near on the ram 1 of belt pulley 33 1 ends, the ram 1 that is positioned at ball-screw 7 ends is provided with collision block 19, and the distance of collision block 19 and ball-screw 7 distal end faces is less than the length of nut seat 4.
the five-shaft numerical control sharpener that the utility model provides comprises by the first power set and drives and along X-axis, be slidably mounted on crossbeam slide 16 on crossbeam 15, this crossbeam slide 16 is provided with by the second power set driving and along the rotating rotary slide base 17 of B axle, this rotary slide base 17 is provided with the ram 1 that is driven and slided along Z axis by the 3rd power set, this ram 1 is provided with by the 4th power set driving and along rotating the first tapered sleeve 26 of C axle, this first tapered sleeve 26 is provided with by the 5th power set driving and along rotating the second tapered sleeve 28 of A axle, on this second tapered sleeve 28, the grinding unit head is installed, this B axle is perpendicular to the plane at X-axis and Z axis place, and this C axle is perpendicular to the B axle, and this A axle is perpendicular to the C axle, and during this B axle back to zero, this X-axis and Z axis are perpendicular.Drive ram 1 revolution by rotary slide base 17, and pass through ram 1 along the Z axis sliding feed, namely realize the feeding of the grinding unit head of installing on ram 1, realize the conical surface and the processing of V-type face; Realize that plane machining on the basis of ram 1 feeding,, by the rotation on the A axle in the revolution on the C axle and the second tapered sleeve of the first tapered sleeve, reaches the processing that realizes each plane of workpiece and cross guide rail.In sum, this five-shaft numerical control sharpener has realized that clamped one time can realize cross guide rail and each plane and taper surface processing be need not interpolation during the processing conical surface and just can reach the smooth effect of finished surface, has improved working (machining) efficiency, and processing effect is good, machining accuracy is high, and this compact conformation, move quick reliable simultaneously, easy to use, with low cost, have higher cost performance, applied widely.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. five-shaft numerical control sharpener, it is characterized in that, comprise by the first power set and drive and along X-axis, be slidably mounted on crossbeam slide on crossbeam, described crossbeam slide is provided with by the second power set driving and along the rotating rotary slide base of B axle, described rotary slide base is provided with the ram that is driven and slided along Z axis by the 3rd power set, described ram is provided with by the 4th power set driving and along rotating the first tapered sleeve of C axle, described the first tapered sleeve is provided with by the 5th power set and drives and, along rotating the second tapered sleeve of A axle, on described the second tapered sleeve, the grinding unit head be installed; Described B axle is perpendicular to the plane at described X-axis and described Z axis place, and described C axle is perpendicular to described B axle, and described A axle is perpendicular to described C axle, and when described B axle back to zero, described X-axis and described Z axis are perpendicular.
2. five-shaft numerical control sharpener according to claim 1, is characterized in that, the trimmer for the finishing grinding knife tool is installed on described crossbeam.
3. five-shaft numerical control sharpener according to claim 2, is characterized in that, described ram is provided with the first cone chamber suitable with described the first tapered sleeve, and described ram is provided with the die springs that clamps described the first tapered sleeve; Described the first tapered sleeve is provided with the second cone chamber suitable with described the second tapered sleeve, and described the second tapered sleeve is provided with the butterfly spring of described the second tapered sleeve of chucking; Be provided with hydraulic clamp between described ram and described the first tapered sleeve.
4. five-shaft numerical control sharpener according to claim 1, is characterized in that, described rotary slide base is provided with the clamping device that clamps described crossbeam slide, and described clamping device is arranged on the both sides of described rotary slide base.
5. five-shaft numerical control sharpener according to claim 4, it is characterized in that, be provided with the gyroaxis that rotates around described B axle between described crossbeam slide and described rotary slide base, be provided with clamping cylinder between described gyroaxis and described rotary slide base, described gyroaxis is fixed on described crossbeam slide away from an end of described rotary slide base.
6. five-shaft numerical control sharpener according to claim 5, is characterized in that, is equipped with wear-resistant coating on described gyroaxis and described the first tapered sleeve and described the second tapered sleeve.
7. five-shaft numerical control sharpener according to claim 1, it is characterized in that, described the first power set and described the 3rd power set include the ball screw structure, and described the second power set, described the 4th power set and described the 5th power set include worm gear structure.
8. five-shaft numerical control sharpener according to claim 7, is characterized in that, the worm gear of described the second power set is worm sector.
9. the described five-shaft numerical control sharpener of arbitrary claim of according to claim 1 to 8, is characterized in that, described five-shaft numerical control sharpener also comprises B shaft encoder, C shaft encoder and the A shaft encoder that all with ECU, is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202507079U CN203282317U (en) | 2013-05-10 | 2013-05-10 | Five-axis numerical control grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202507079U CN203282317U (en) | 2013-05-10 | 2013-05-10 | Five-axis numerical control grinder |
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| Publication Number | Publication Date |
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| CN203282317U true CN203282317U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202507079U Withdrawn - After Issue CN203282317U (en) | 2013-05-10 | 2013-05-10 | Five-axis numerical control grinder |
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| CN (1) | CN203282317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223636A (en) * | 2013-05-10 | 2013-07-31 | 山东亚盛重工股份有限公司 | Five-axis numerically-controlled grinding device |
| CN103639875A (en) * | 2013-11-25 | 2014-03-19 | 李东炬 | Universal grinder special for nuclear power bearing outer race machining |
-
2013
- 2013-05-10 CN CN2013202507079U patent/CN203282317U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223636A (en) * | 2013-05-10 | 2013-07-31 | 山东亚盛重工股份有限公司 | Five-axis numerically-controlled grinding device |
| CN103223636B (en) * | 2013-05-10 | 2015-05-27 | 山东亚盛重工股份有限公司 | Five-axis numerically-controlled grinding device |
| CN103639875A (en) * | 2013-11-25 | 2014-03-19 | 李东炬 | Universal grinder special for nuclear power bearing outer race machining |
| CN103639875B (en) * | 2013-11-25 | 2015-11-18 | 李东炬 | Nuclear power bearing outer ring processing Special universal grinding machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20150527 |
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| RGAV | Abandon patent right to avoid regrant |