CN101954597A - Heavy-load numerical control rotating table - Google Patents
Heavy-load numerical control rotating table Download PDFInfo
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- CN101954597A CN101954597A CN 201010502846 CN201010502846A CN101954597A CN 101954597 A CN101954597 A CN 101954597A CN 201010502846 CN201010502846 CN 201010502846 CN 201010502846 A CN201010502846 A CN 201010502846A CN 101954597 A CN101954597 A CN 101954597A
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- 230000003068 static effect Effects 0.000 claims abstract description 27
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 20
- 230000003313 weakening effect Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
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- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 238000005065 mining Methods 0.000 description 1
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- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention discloses a heavy-load numerical control rotating table which comprises a disc-shaped table, a rotating table body, a main shaft, a worm wheel frame and a worm gearing system, wherein one end of the main shaft is fixed on the rotating table body; the worm wheel frame is rotatablely connected with the main shaft through a main shaft bearing; the upper end of the worm wheel frame is fixedly connected with the table; a static locking system for locking the table is arranged along the circumference direction of the lower end surface of the table; and a plurality of damping dynamic vibration absorbing systems for eliminating the vibration of the table in cutting are arranged along the circumference direction of the lower end surface of the worm wheel frame. By arranging the static locking system and the damping dynamic vibration absorbing systems, the rigidity of the rotating table in both the static state and the dynamic state can be ensured, and simultaneously the working accuracy of an assorted host computer can be improved.
Description
Technical field
Patent of the present invention relates to the indispensable functional part of a kind of large-scale Metal Cutting Machine Tool (subsidiary engine), and promptly a kind of heavily loaded NC rotary table relates to milling-boring machine, chain digital control gear hobbing machine of machining large workpiece etc.The workpiece that can be used as 60 tons of maximum carryings is done gyration and dividing movement at any angle, can under the static locking state of workbench, carry out high-rate cutting processing, and can be at workbench and have enough motion rigidity to carry out work under the continuous gyration state, guarantee the high accuracy high-quality.
Background technology
" high-grade, digitally controlled machine tools are made the great special project of equipment with the basis " spells out: to the year two thousand twenty, Aero-Space, boats and ships, automobile, generating equipment are made needed high-grade, digitally controlled machine tools and will be based on our country with basis manufacturing equipment 70%～80%, form high-grade, digitally controlled machine tools and make the ability to develop independently of equipping major product with the basis, the general technical level enters the international rank of advanced units, and portioned product is leading in the world." large-scale heavy duty NC rotary table " is the critical function parts of high-grade, digitally controlled machine tools, accounts for the 1/4-1/3 of lathe cost; Studying its key technology is the supporting basic condition of exploitation large-scale heavy duty NC rotary table and realization and big heavy type numerical control lathe.
Fast development along with industries such as engineering machinery, wind power equipment, metallurgy and mining machinery, harbour machinery, military project, railways, some heavy industry equipment progressively are tending towards maximizing, heavy loading, parts (for example used large-scale helical gear of wind-powered electricity generation) have also been gone on the maximization road accordingly, have brought a new difficult problem for the modern machine process technology.
For the high-rate cutting of big heavy type numerical control lathe, numerical control rotating platform bears bigger shock loading, and the workpiece clamp system fixing with turntable produces high vibration, reduced working (machining) efficiency and precision.And the transmission mechanism of turntable causes the rapid decline of precision because wearing and tearing will make gap enlargement.
The large-scale helical gear used with wind-power electricity generation is processed as example, gear-hobbing machine, gear grinding machines chip-load are more stable, and the mill teeth machine is interrupted high-rate cutting lathe, and it is serious that mill teeth adds turntable circumferential and axial vibration in man-hour offset loading force, and the turntable dynamic characteristic is had higher requirement.The continuous gyration of turntable and the rectilinear motion of cutterhead carry out compound, carry out the helical gear processing and forming.When carrying out machining, on the one hand because NC rotary table is in continuous turn state, be that workbench is not in static locking state, on the other hand owing to the dislocation of cutting edge on the cutterhead arranges that the cutting force direction that adjacent cutting edges work produces is opposite.Promptly constantly be subjected to the effect of the antipodal cutting force of direction, form concussion, reduced the rigidity of turntable gyration, great influence is arranged for helical gear machining accuracy with the fixing workbench of part to be processed helical gear.
At present, produce the situation of motion rigidity deficiency at high-rate cutting, domestic temporarily do not have an effective solution, Nanjing GongDa Digital Control Science Co., Ltd adopts two copper rods to form the measure that friction reduces vibration along workbench side circumferential arrangement and workbench side, can play certain damping effect, but effect is very limited, and long-term use can cause the turntable precision sharply to descend.
Therefore being badly in need of a kind of technology can address the above problem, with its processing technology scope of service behaviour, machining accuracy and expansion that improves large-scale working host.
Summary of the invention
The object of the invention provides a kind of heavily loaded NC rotary table, solves the problem of present large-scale heavy duty NC rotary table existing turntable when high-rate cutting static and dynamic stiffiness difference and workbench serious vibration.
For achieving the above object, the present invention is by the following technical solutions: a kind of heavily loaded NC rotary table, comprise the collar plate shape workbench, the turntable body, main shaft, wheel carrier and worm and gear transmission system, described main shaft one end is fixed on the described turntable body, described worm gear frame by main shaft bearing with the rotatable connection of described main shaft, the upper end of described worm gear frame connects with described stationary table, along the circumferencial direction of described workbench lower surface be provided for the stopping static fastening system of tight above-mentioned workbench, be provided with the dynamic weakening of the damping system of a plurality of workbench vibrations when being used to eliminate cutting along described worm gear frame lower surface circumferencial direction, the excircle of described workbench lower surface is provided with cannelure, the lower end of described cannelure is fixed with the ring-shaped guide rail pressing plate, the lower end of described guide rail clip is fixedly connected with described turntable body, which is provided with a plurality of through holes that connect with described cannelure, described static fastening system comprises oil cylinder, piston, the tight post of stopping, the stop tight bolt and the tight sheet of stopping, described oil cylinder is fixedly connected with the tight post of stopping, and the periphery of the lower end of described guide rail clip is provided with and is used to limit the described block of tight post displacement of stopping; The described tight post of stopping places in the described through hole and can move up and down along through hole, and the lower end of the described tight post of stopping is provided with oil cylinder and places in-oil cylinder piston, and its upper end is provided with the tight sheet of stopping that is fixed on the described guide rail clip; The described described cannelure of tight screw bolt passes of stopping, the tight sheet of stopping, stop tight post, oil cylinder and piston, and be connected with piston seal with described oil cylinder, pin the lower end of described piston by nut the lower end of the described tight bolt of stopping, the lower surface of its nut places on the upper surface of described cannelure, and described stopping is fixed with the dish spring between tight sheet and the nut; When charged pressure in described oil cylinder and the formed oil pocket of piston was oily, described oil cylinder drove on the tight post of stopping and moves, and makes the described tight sheet of stopping push the lower surface of described cannelure, and the described tight bolt of stopping moves down the upper surface of the lower surface extruding cannelure that makes its nut.
Also be fixed with guide rail on the lower surface of described workbench, the lower end of described guide rail is with being provided with unsteady guide rail plate between the described turntable body.
Worm screw in the described worm and gear transmission system is for can eliminate two helical pitch worm gear pairs in gap.
Described static fastening system is along evenly being provided with 12 on the cylindrical of workbench lower surface, the oil cylinder in described each static fastening system is connected by oil circuit.
The dynamic weakening of described damping system comprises dish spring, piston, oil cylinder, ring-type stop tight seat, friction plate, brake tight ring and gland; The described tight seat ring of stopping is around described main shaft and fixedly connected with described turntable body, its upper end is provided with two fixedly connected dish type friction plates of described worm gear frame bottom, its lower end is provided with oil cylinder and has the piston of projection, and described oil cylinder forms an oil pocket with the upper end of described piston; The projection of described piston passes described oil cylinder successively and is connected with the brake tight ring tightening of tight seat with described friction plate upper end of stopping, described projection is tightly connected with the cylinder body of described oil cylinder, the lower end of described oil cylinder is fixed with gland, is provided with the dish spring between described piston lower end and the gland;
When supplying pressure oil in the oil pocket of described oil cylinder, described piston overcomes its bottom dish spring under action of hydraulic force effect moves down, and drive the brake tight ring link with it and move down, the upper surface of two friction plates and brake tight ring are fitted, its lower surface and described tight the applying of stopping; During described oil pocket release, described piston moves under the effect of described dish spring, and makes on the described brake tight ring and move, and makes the upper and lower surface of described two friction plates form the gap with the described brake tight ring and the tight seat of stopping respectively.
Fix a bearing pin on the upper surface of described piston, the cylinder body of described oil cylinder is provided with and the corresponding pin-and-hole of described bearing pin, and described bearing pin places in the described pin-and-hole and can move up and down along described pin-and-hole.
The upper surface of described two friction plates and lower surface are fixed with the polytetrafluoroethylene (PTFE) guide rail respectively.
The dynamic weakening of described damping system is along being provided with 8 on the circumference of described worm gear frame lower end, and the oil cylinder in the dynamic weakening of each damping system is connected by oil circuit.
The present invention has following advantage:
The present invention adopts can eliminate the two helical pitch worm gear pair structures and the static fastening system structure in gap, static fastening system wherein adopts the hydraulic locking mode, a plurality of independently static fastening systems evenly are set on the lower surface of workbench excircle, by injection pressure oil in oil cylinder, dependence frictional force that tight sheet produces the workbench tight workbench of stopping of stopping, its tight great efforts of stopping, the turntable static rigidity is good.
The vibration that is produced when cutting for eliminating, the present invention evenly is provided with the dynamic weakening of a plurality of dampings system in the lower end of worm gear frame, make the worm gear frame produce frictional force by injection pressure oil with between two friction plates, the vibration that is produced when utilizing friction absorbing function to eliminate high-rate cutting, has good dynamic stiffiness, can increase substantially simultaneously the working (machining) efficiency and the precision of supporting with it large-size numerical control machine, reduce part manufacturing cost.Therefore workpiece is behind a clamping, by high-precision brill, boring, hinge, spot facing, milling plane, the keyway etc. finished of static fastening system; When working host be in the high-rate cutting state, when numerical control rotating platform bears bigger shock loading, the motion rigidity of turntable can be improved under the effect of the dynamic weakening of damping system, guarantees machining accuracy.
Description of drawings
Figure 1 shows that structure chart of the present invention;
Figure 2 shows that the vertical view of Fig. 1;
Figure 3 shows that the static fastening system structure chart among Fig. 1;
Figure 4 shows that the dynamic weakening system construction drawing of damping among Fig. 1.
Reference numeral is expressed as among the figure:
1, turntable body 2, worm screw 3, worm gear 4, worm gear frame 5, guide rail plate 6, static fastening system 7, workbench 8, guide rail 9, the dynamic weakening of damping system 10, main shaft bearing 11, angular encoder 12, main shaft 13, pressure ring 14, servomotor 15, decelerator 16, pressure oil pipe 17, piston 18, friction plate 19, brake tight ring 20, polytetrafluoroethylene (PTFE) guide rail 21, dish spring 22, pressure oil pipe 23, oil cylinder 24, block 25, the tight post 26 of stopping, the tight bolt 27 of stopping, dish spring 28, the tight sheet 29 of stopping, pressing plate 30, pad 31, guide rail clip 32, piston 33, nut 34, gland 35, pad 36, oil cylinder 37, stop tight 38, cannelure 39, pin-and-hole 40, nut 41, projection 42, bearing pin.
The specific embodiment
Below with reference to accompanying drawing, use following examples that the present invention is further set forth.
As shown in Figure 1, 2 be concrete structure of the present invention, be a kind of large-scale heavy duty NC rotary table, comprise turntable body 1, workbench 7, worm gear frame 4, worm gear 3, worm screw 2, servomotor 14, decelerator 15, angular encoder 11, main shaft bearing 10, guide rail 8, guide rail plate 5, main shaft 12, static fastening system 6, the dynamic weakening of damping system 9.The turntable body connects with the main frame lathe bed, and workbench 7 is arranged on the body by ring-shaped guide rail 8.
The turntable body is the bare bones of rotary table, enough rigidity and intensity must be arranged, floor is vertically arranged along circumferentially reaching in middle and lower part at turntable body 1, and on the top of turntable body 1 plastic-sticking guiding rail 8 is set circumferentially, can increase substantially the rigidity and the bearing capacity of turntable body 1.
As shown in Figure 3, high-rate cutting stability when guaranteeing that workbench is in static state, be provided with the static fastening system of a plurality of tight workbench 7 that are used to stop along the circumferencial direction of the lower surface of workbench 7, the lower end of workbench 7 is provided with cannelure 38, the lower end of cannelure 38 is fixed with ring-shaped guide rail pressing plate 31, the lower end of guide rail clip 31 is fixedly connected with turntable body 1, which is provided with a plurality of through holes that connect with cannelure 38, static fastening system comprises oil cylinder 23, piston 32, the tight post 25 of stopping, the stop tight bolt 26 and the tight sheet 28 of stopping, oil cylinder 23 is fixedly connected with the tight post 25 of stopping by pin, and the periphery of the lower end of guide rail clip 31 is provided with and is used to limit the block 24 of tight post 25 displacements of stopping; The tight post 25 of stopping places in the through hole and can move up and down along through hole; The stop lower end of tight post 25 is provided with oil cylinder 23 and places piston 32 in the oil cylinder 23, and its upper end is provided with stop tight sheet 28 and the pad 30 that is fixed on the guide rail clip 31; The tight bolt 26 of stopping passes cannelure 38 successively, the tight sheet 28 of stopping, stop tight post 25, oil cylinder 23 and piston 32, and be tightly connected with oil cylinder 23 and piston 32, pin the lower end of piston 32 by nut 33 the stop lower end of tight bolt 26, the lower surface of its nut 40 places on the upper surface of cannelure 38, stopping is fixed with dish spring 27 between tight sheet 28 and the nut 40, connects by oil pipe between the oil cylinder of each static fastening system; When pressure oil pipe 22 charged pressure when oil in oil cylinder 23 and piston 32 formed oil pockets, the active force that oil cylinder 23 overcomes dish spring 27 drives on the tight post 25 of stopping and moves, make and produce friction between the lower surface of stop tight sheet 28 and cannelure 38, the tight bolt 26 of stopping moves down the upper surface of the lower surface extruding cannelure 38 that makes its nut 40, therefore the both ends of the surface up and down at cannelure 38 all produce friction, rely on the effect of this frictional force to impel workbench to be in static locking state.When the pressure oil off-load, the tight post 25 of stopping no longer give the upwards active force of tight sheet 28 of stopping, and the tight sheet 28 of stopping forms the gap with the workbench bottom surface, i.e. disengaging friction, workbench 7 releases under the effect of dish spring at following block 24 places that slide to of deadweight effect.
When workbench 7 is in turn state and carries out high-rate cutting,, be provided with the dynamic weakening of the damping system of a plurality of workbench vibrations when being used to eliminate cutting along the lower end of worm gear frame 4 because the non-locking state of workbench can produce vibration under the effect of cutting force.The dynamic weakening of damping system comprises dish spring 21, piston 17, oil cylinder 36, annular stop tight seat 37, friction plate 18, brake tight ring 19 and gland 34; Stop tight 37 around described main shaft and fixedly connected with turntable body 1, its upper end is provided with two fixedly connected dish type friction plates 18 of worm gear frame 4 bottoms, its lower end is fixedly connected by pin with oil cylinder 36, be provided with the piston 17 that has projection 41 in the oil cylinder 36, oil cylinder 36 forms an oil pocket with the upper end of piston 17; The projection 41 of piston 17 passes oil cylinder 36 successively and is connected with tight seat 37 brake tight ring 19 tightenings with friction plate 18 upper ends of stopping, projection 41 is tightly connected by sealing ring with the cylinder body of oil cylinder 36, the lower end of oil cylinder 36 is fixed with gland 34, is provided with dish spring 21 and pad 35 between piston 17 lower ends and the gland 34; For preventing piston rotation, on the upper surface of piston, fix a bearing pin 42, the cylinder body of oil cylinder 36 is provided with and bearing pin 42 corresponding pin-and-holes 39, and bearing pin 42 places in the pin-and-hole 39 and can move up and down along pin-and-hole 39.For strengthening the anti-wear performance of two friction plates, be fixed with polytetrafluoroethylene (PTFE) guide rail 20 respectively at the upper surface and the lower surface of two friction plates 18; Along 8 the independently dynamic weakening of damping systems are set on the circumference of worm gear frame lower end, the oil cylinder in the dynamic weakening of each damping system is in series by oil circuit.
When pressure oil pipe 16 supplies pressure oil in the oil pocket of oil cylinder 36, piston 17 overcomes its bottom dish spring 21 under action of hydraulic force effect moves down, and the brake tight ring 19 that drive is attached thereto moves down, the upper surface and the brake tight ring 19 of two friction plates 18 are fitted, its lower surface is fitted with the tight seat 37 of stopping, and all produces frictional force.The vibration that produces when utilizing this frictional force to eliminate high-rate cutting; During the oil pocket release, piston 17 moves under dish spring 21 effect, and makes on the brake tight ring 19 and move, and makes the upper and lower surface of two friction plates 18 form gaps with the brake tight ring 19 and the tight seat 37 of stopping respectively, breaks away from friction.
Though the present invention elaborates it by the specific embodiment; but; the any form that does not exceed the claim protection domain that those skilled in the art should be understood that on this basis to be made and the variation of details all belong to invention which is intended to be protected.
Claims (8)
1. heavily loaded NC rotary table, comprise collar plate shape workbench (7), turntable body (1), main shaft (12), worm gear frame (4) and worm and gear transmission system, described main shaft (12) one ends are fixed on the described turntable body (1), described worm gear frame (4) passes through main shaft bearing (10) with the rotatable connection of described main shaft (12), the upper end of described worm gear frame (4) is fixedly connected with described workbench (7), along the circumferencial direction of described workbench (7) lower surface be provided for the stopping static fastening system of tight above-mentioned workbench (7), be provided with the dynamic weakening of the damping system of a plurality of workbench vibrations when being used to eliminate cutting along described worm gear frame (4) lower surface circumferencial direction, it is characterized in that: the cylindrical of described workbench (7) lower surface is provided with cannelure (38), the lower end of described cannelure (38) is fixed with ring-shaped guide rail pressing plate (31), the lower end of described guide rail clip (31) is fixedly connected with described turntable body (1), which is provided with a plurality of through holes that connect with described cannelure (38), described static fastening system comprises oil cylinder (23), piston (32), the tight post (25) of stopping, the stop tight bolt (26) and the tight sheet (28) of stopping, described oil cylinder (23) is fixedly connected with the tight post (25) of stopping, and the periphery of the lower end of described guide rail clip (31) is provided with and is used to limit the described block (24) of tight post (25) displacement of stopping; The described tight post (25) of stopping places in the described through hole and can move up and down along through hole; Described lower end of stopping tight post (25) is provided with oil cylinder (23) and places the interior piston (32) of oil cylinder (23), and its upper end is provided with the tight sheet (28) of stopping that is fixed on the described guide rail clip (31); The described tight bolt (26) of stopping passes described cannelure (38) successively, the tight sheet (28) of stopping, the tight post (25) of stopping, oil cylinder (23) and piston (32), and be tightly connected with described oil cylinder (23) and piston (32), pin the lower end of described piston (32) by nut (33) lower end of the described tight bolt (26) of stopping, the lower surface of its nut (40) places on the upper surface of described cannelure (38), and described stopping is fixed with dish spring (27) between tight sheet (28) and the nut (40); When charged pressure in described oil cylinder (23) and the formed oil pocket of piston (32) is oily, described oil cylinder (23) drives on the tight post (25) of stopping and moves, make the described tight sheet (28) of stopping push the lower surface of described cannelure (38), the described tight bolt (26) of stopping moves down the upper surface of the lower surface extruding cannelure (38) that makes its nut (40).
2. heavily loaded NC rotary table according to claim 1, it is characterized in that: also be fixed with guide rail (8) on the lower surface of described workbench (7), the lower end of described guide rail (8) is with being provided with unsteady guide rail plate (5) between the described turntable body (1).
3. heavily loaded NC rotary table according to claim 1 is characterized in that: the worm screw (2) in the described worm and gear transmission system is for can eliminate two helical pitch worm gear pairs in gap.
4. heavily loaded NC rotary table according to claim 1 is characterized in that: described static fastening system is along evenly being provided with 12 on the cylindrical of workbench (7) lower surface, and the oil cylinder (23) in described each static fastening system is connected by oil circuit.
5. heavily loaded NC rotary table according to claim 1 is characterized in that: the dynamic weakening of described damping system comprises dish spring (21), piston (17), oil cylinder (36), ring-type stop tight seat (37), dish type friction plate (18), brake tight ring (19) and gland (34); The described tight seat (37) of stopping is around described main shaft and fixedly connected with described turntable body (1), its upper end is provided with fixedly connected two the dish type friction plates (18) in described worm gear frame (4) bottom, its lower end is provided with oil cylinder (36) and has the piston (17) of projection (41), and described oil cylinder (36) forms an oil pocket with the upper end of described piston (17); The projection (41) of described piston (17) passes described oil cylinder (36) successively and is connected with brake tight ring (19) tightening of tight seat (37) with described friction plate (18) upper end of stopping, described projection (41) is tightly connected with the cylinder body of described oil cylinder (36), the lower end of described oil cylinder (36) is fixed with gland (34), is provided with dish spring (21) between described piston (17) lower end and the gland (34);
When supplying pressure oil in the oil pocket of described oil cylinder (36), described piston (17) overcomes its bottom dish spring (21) under action of hydraulic force effect moves down, and the brake tight ring (19) that drive links with it moves down, the upper surface and the brake tight ring (19) of two friction plates (18) are fitted, and its lower surface and the described tight seat (37) of stopping are fitted; During described oil pocket release, described piston (17) moves under described dish spring (21) effect, and make on the described brake tight ring (19) and move, make the upper and lower surface of described two friction plates (18) form the gap with the described brake tight ring (19) and the tight seat (37) of stopping respectively.
6. heavily loaded NC rotary table according to claim 5, it is characterized in that: fix a bearing pin (42) on the upper surface of described piston (17), the cylinder body of described oil cylinder (36) is provided with and the corresponding pin-and-hole of described bearing pin (42) (39), and described bearing pin (42) places in the described pin-and-hole (39) and can move up and down along described pin-and-hole (39).
7. heavily loaded NC rotary table according to claim 6 is characterized in that: the upper surface of described two friction plates (18) and lower surface are fixed with polytetrafluoroethylene (PTFE) guide rail (20) respectively.
8. according to the described heavily loaded NC rotary table of the arbitrary claim of claim 1-7, it is characterized in that: the dynamic weakening of described damping system is along being provided with 8 on the circumference of described worm gear frame lower end, and the oil cylinder (36) in the dynamic weakening of each damping system is connected by oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105028467A CN101954597B (en) | 2010-10-11 | 2010-10-11 | Heavy-load numerical control rotating table |
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| CN2010105028467A CN101954597B (en) | 2010-10-11 | 2010-10-11 | Heavy-load numerical control rotating table |
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| CN101954597B CN101954597B (en) | 2012-04-25 |
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| CN103481068A (en) * | 2013-09-24 | 2014-01-01 | 烟台市三立工业有限公司 | Numerically-controlled vertical rotary working table |
| CN103522085A (en) * | 2013-09-29 | 2014-01-22 | 上海三一精机有限公司 | Clamping device and machining center of rotating table |
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| CN110842222A (en) * | 2019-10-25 | 2020-02-28 | 湖南中大创远数控装备有限公司 | Locking mechanism and main shaft structure |
| CN114406730A (en) * | 2022-02-17 | 2022-04-29 | 江苏恒望机械科技有限公司 | Numerical control rotary worktable |
| CN114453920A (en) * | 2022-02-11 | 2022-05-10 | 江苏优智享智能制造有限公司 | Guide rail unloading structure adopting disc-shaped spring for prepressing |
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| CN105058076A (en) * | 2015-09-02 | 2015-11-18 | 芜湖日升重型机床有限公司 | Open-loop numerical control rotary working table |
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| CN110842222A (en) * | 2019-10-25 | 2020-02-28 | 湖南中大创远数控装备有限公司 | Locking mechanism and main shaft structure |
| CN114453920A (en) * | 2022-02-11 | 2022-05-10 | 江苏优智享智能制造有限公司 | Guide rail unloading structure adopting disc-shaped spring for prepressing |
| CN114406730A (en) * | 2022-02-17 | 2022-04-29 | 江苏恒望机械科技有限公司 | Numerical control rotary worktable |
| CN114406730B (en) * | 2022-02-17 | 2024-05-31 | 江苏恒望机械科技有限公司 | Numerical control rotary workbench |
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