CN204524978U - A kind of precise heavy-load Intelligent adjustment huge revolving table - Google Patents
A kind of precise heavy-load Intelligent adjustment huge revolving table Download PDFInfo
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- CN204524978U CN204524978U CN201520201362.7U CN201520201362U CN204524978U CN 204524978 U CN204524978 U CN 204524978U CN 201520201362 U CN201520201362 U CN 201520201362U CN 204524978 U CN204524978 U CN 204524978U
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Abstract
The utility model discloses a kind of precise heavy-load Intelligent adjustment huge revolving table, comprise main shaft, base, worm couple, hydrostatic bearing, hydrostatic slideway and servomotor, main shaft have employed Split type structure, reduces the difficulty of processing of large-scale precision worm gear; Transmission and calibration adopt double worm and gear pair and the servo-actuated combined gap-eliminating structure of hydraulic jack, improve the transmission accuracy of workbench; Main shaft supporting have employed closed static pressure guideway structure, in each static pressure chamber, current vortex sensor is installed, when workbench carrying changes, real―time precision measurment can be carried out to oil film thickness of hydrostatic guide way, feed back to digital control system simultaneously, finally by hydraulic system, real-time auto-control is carried out to oil film thickness, guarantee rigidity and the bearing capacity of workbench hydrostatic slideway.
Description
Technical field
The utility model relates to machine tool field, particularly relates to the worktable part of gear machine.
Background technology
Existing huge revolving table worm gear and main shaft connect into entirety and carry out worm gear hobbing processing, and huge load not only constrains the machining accuracy of worm gear widely, also causes irreversible infringement to spiral case making equipment; The single worm couple of the many employings of existing huge revolving table carries out transmission and calibration, and because of the existence of worm gear sideshake, when carrying out the noncontinuities such as Gear Processing and cutting, lathe vibrations can reduce machining accuracy and workpiece surface roughness; The oil film thickness of existing huge revolving table hydrostatic slideway can not carry out Intelligent adjustment according to the size of load, therefore can cause in load large compared with oil film thickness in little, poor rigidity, and when load is larger, oil film thickness diminishes, and easily causes the scratch between static pressure inefficacy and guide rail.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of worm gear machining accuracy and easily ensures, can realize without sideshake transmission, and the precise heavy-load Intelligent adjustment huge revolving table that oil film thickness of hydrostatic guide way can accurately control.
The technical scheme that the utility model adopts is:
A kind of precise heavy-load Intelligent adjustment huge revolving table, comprise main shaft, base, worm couple, hydrostatic bearing, hydrostatic slideway and servomotor, described main shaft adopts Split type structure, workbench main shaft is divided into table top and worm wheel body two parts, the table top of workbench is connected with worm wheel body, worm driver gear and anti-backlash worm wheel are all fixed on worm wheel body, initiatively worm screw is meshed with worm driver gear, driven by servomotor is worm screw initiatively, the gap that disappears worm screw is meshed with anti-backlash worm wheel, initiatively worm screw and the gap worm screw that disappears are provided with gear driving pair, one end of the gap that disappears worm screw is provided with two-way cylinder, hydrostatic slideway is provided with current vortex sensor.
Described gear driving pair drives the gap worm screw that disappears to rotate.
Described worm driver gear and initiatively worm screw, anti-backlash worm wheel and the gap worm screw that disappears form double worm and gear pair jointly, double worm and gear is secondary forms gap-eliminating structure with two-way cylinder, even if can ensure that worm gear has wearing and tearing also can realize gapless driving, improves the transmission accuracy of workbench.
Described two-way cylinder can offset the axial thrust that gap worm screw produces a certain size, and the direction of power is contrary with the direction of rotation of worm wheel body, certain damping is applied to the revolution of worm wheel body and table top, initiatively worm screw is remained with the mesh tooth face of worm driver gear contact, improve stationarity and the transmission accuracy of main shaft gyration.
Direct-connected mode is adopted between described servomotor and active worm screw.
Described current vortex sensor is when workbench carrying changes, real―time precision measurment can be carried out to oil film thickness of hydrostatic guide way, feed back to digital control system simultaneously, finally by hydraulic system, real-time auto-control is carried out to oil film thickness, guarantee rigidity and the bearing capacity of workbench hydrostatic slideway.
The utility model has following beneficial effect:
Compared with prior art, the beneficial effects of the utility model are the revolution positioning precision and the repetitive positioning accuracy that improve workbench, the Intelligent adjustment of workbench oil film thickness of hydrostatic guide way particularly can be realized under heavy duty cutting and noncontinuity cutting situation, ensure that the rigidity of workbench, improve the bearing capacity of workbench.
Above-mentioned main shaft adopts Split type structure, is divided into table top and worm wheel body two parts, thus effectively alleviates large-scale worm gear and add the lathe in man-hour and bear a heavy burden, and reduces the contour dimension adding man-hour, contributes to the raising of Machining Precision of Worm Gear.
Above-mentioned worm driver gear and initiatively worm screw, anti-backlash worm wheel and the gap worm screw that disappears form double worm and gear pair jointly, double worm and gear is secondary forms gap-eliminating structure with two-way cylinder, even if can ensure that worm gear has wearing and tearing also can realize gapless driving, improves the transmission accuracy of workbench.
Above-mentioned two-way cylinder can offset the axial thrust that gap worm screw produces a certain size, and the direction of power is contrary with the direction of rotation of worm wheel body, certain damping is applied to the revolution of worm wheel body and table top, initiatively worm screw is remained with the mesh tooth face of worm driver gear contact, improve stationarity and the transmission accuracy of main shaft gyration.
Adopt direct-connected mode between above-mentioned servomotor and active worm screw, shorten driving-chain, improve transmission efficiency.
Above-mentioned current vortex sensor is when workbench carrying changes, real―time precision measurment can be carried out to oil film thickness of hydrostatic guide way, feed back to digital control system simultaneously, finally by hydraulic system, real-time auto-control is carried out to oil film thickness, guarantee rigidity and the bearing capacity of workbench hydrostatic slideway.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is agent structure schematic diagram of the present utility model;
Fig. 2 is double worm and gear described in the utility model pair and the servo-actuated combined gap-eliminating structure schematic diagram of hydraulic jack.
In figure: table top 1, worm wheel body 2, worm driver gear 3, initiatively worm screw 4, anti-backlash worm wheel 5, the gap that disappears worm screw 6, current vortex sensor 7, base 8, gear driving pair 9, servomotor 10, two-way cylinder 11.
A, B are oil-in and the oil-out of two-way cylinder.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
See Fig. 1-2, installation concrete in figure and connected mode have, a kind of precise heavy-load Intelligent adjustment huge revolving table, comprise main shaft, base, worm couple, hydrostatic bearing, hydrostatic slideway and servomotor, described main shaft adopts Split type structure, workbench main shaft is divided into table top 1 and worm wheel body 2 two parts, the table top 1 of workbench is connected with worm wheel body 2, worm driver gear 3 and anti-backlash worm wheel 5 are all fixed on worm wheel body 2, initiatively worm screw 4 is meshed with worm driver gear 3, servomotor 10 drives initiatively worm screw 4, the gap that disappears worm screw 6 is meshed with anti-backlash worm wheel 5, initiatively worm screw 4 and the gap worm screw 6 that disappears are provided with gear driving pair 9, one end of the gap that disappears worm screw 6 is provided with two-way cylinder 11, hydrostatic slideway is provided with current vortex sensor 7.
Preferably, described gear driving pair 9 drives the gap worm screw 6 that disappears to rotate.
Preferably, described worm driver gear 3 and initiatively worm screw 4, it is secondary that anti-backlash worm wheel 5 and the gap worm screw 6 that disappears form double worm and gear jointly, and double worm and gear is secondary forms gap-eliminating structure with two-way cylinder 11, even if can ensure that worm gear has wearing and tearing also can realize gapless driving, improve the transmission accuracy of workbench.
Preferably, described two-way cylinder 11 can offset the axial thrust that gap worm screw 6 produces a certain size, and the direction of power is contrary with the direction of rotation of worm wheel body 2, certain damping is applied to the revolution of worm wheel body 2 and table top 1, initiatively worm screw 4 is remained with the mesh tooth face of worm driver gear 3 contact, improve stationarity and the transmission accuracy of main shaft gyration.
Preferably, direct-connected mode is adopted between described servomotor 10 and active worm screw 4.
Further, described current vortex sensor 7 is when workbench carrying changes, real―time precision measurment can be carried out to oil film thickness of hydrostatic guide way, feed back to digital control system simultaneously, finally by hydraulic system, real-time auto-control is carried out to oil film thickness, guarantee rigidity and the bearing capacity of workbench hydrostatic slideway.
Device specific works process of the present utility model and principle are:
The table top 1 of workbench is connected with worm wheel body 2, worm driver gear 3 and anti-backlash worm wheel 5 are all fixed on worm wheel body 2, servomotor 10 drives initiatively worm screw 4 to rotate, thus drive worm wheel body 2 and table top 1 to turn round, drive the gap worm screw 6 that disappears to rotate by being arranged on initiatively worm screw 4 and the gear pair 9 disappeared on gap worm screw 6 simultaneously, the two-way cylinder 11 being arranged on gap worm screw 6 one end that disappears offsets the axial thrust that gap worm screw 6 produces a certain size, and the direction of power is contrary with the direction of rotation of worm wheel body 2, namely certain damping is applied to the revolution of worm wheel body 2 and table top 1, initiatively worm screw 4 is remained with the mesh tooth face of worm driver gear 3 contact, improve stationarity and the transmission accuracy of main shaft gyration, at hydrostatic slideway place, current vortex sensor 7 is set, thus in real time, the change of monitor static pressure film thickness, and feed data back to digital control system, by the inlet flow rate of proportional servo valve regulating static oil pocket, oil film thickness is compensated accurately, make workbench still can keep high rigidity when load significantly changes, guarantee heavily loaded ability and the high stability of workbench.
Claims (6)
1. a precise heavy-load Intelligent adjustment huge revolving table, comprise main shaft, base, worm couple, hydrostatic bearing, hydrostatic slideway and servomotor, it is characterized in that: described main shaft adopts Split type structure, workbench main shaft is divided into table top (1) and worm wheel body (2) two parts, the table top (1) of workbench is connected with worm wheel body (2), worm driver gear (3) and anti-backlash worm wheel (5) are all fixed on worm wheel body (2), initiatively worm screw (4) is meshed with worm driver gear (3), servomotor (10) drives initiatively worm screw (4), the gap that disappears worm screw (6) is meshed with anti-backlash worm wheel (5), initiatively worm screw (4) and the gap worm screw (6) that disappears are provided with gear driving pair (9), one end of the gap that disappears worm screw (6) is provided with two-way cylinder (11), hydrostatic slideway is provided with current vortex sensor (7).
2. a kind of precise heavy-load Intelligent adjustment huge revolving table according to claim 1, is characterized in that: described gear driving pair (9) drives the gap worm screw (6) that disappears to rotate.
3. a kind of precise heavy-load Intelligent adjustment huge revolving table according to claim 1, it is characterized in that: described worm driver gear (3) and initiatively worm screw (4), it is secondary that anti-backlash worm wheel (5) and the gap worm screw (6) that disappears form double worm and gear jointly, double worm and gear is secondary forms gap-eliminating structure with two-way cylinder (11), even if can ensure that worm gear has wearing and tearing also can realize gapless driving, improve the transmission accuracy of workbench.
4. a kind of precise heavy-load Intelligent adjustment huge revolving table according to claim 1 or 3, it is characterized in that: described two-way cylinder (11) can offset the axial thrust that gap worm screw (6) produces a certain size, and the direction of power is contrary with the direction of rotation of worm wheel body (2), certain damping is applied to the revolution of worm wheel body (2) and table top (1), initiatively worm screw (4) is remained with the mesh tooth face of worm driver gear (3) contact, improve stationarity and the transmission accuracy of main shaft gyration.
5. a kind of precise heavy-load Intelligent adjustment huge revolving table according to claim 1, is characterized in that: adopt direct-connected mode between described servomotor (10) and active worm screw (4).
6. a kind of precise heavy-load Intelligent adjustment huge revolving table according to claim 1, it is characterized in that: described current vortex sensor (7) is when workbench carrying changes, real―time precision measurment can be carried out to oil film thickness of hydrostatic guide way, feed back to digital control system simultaneously, finally by hydraulic system, real-time auto-control is carried out to oil film thickness, guarantee rigidity and the bearing capacity of workbench hydrostatic slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201362.7U CN204524978U (en) | 2015-04-07 | 2015-04-07 | A kind of precise heavy-load Intelligent adjustment huge revolving table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201362.7U CN204524978U (en) | 2015-04-07 | 2015-04-07 | A kind of precise heavy-load Intelligent adjustment huge revolving table |
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| CN204524978U true CN204524978U (en) | 2015-08-05 |
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| CN201520201362.7U Active CN204524978U (en) | 2015-04-07 | 2015-04-07 | A kind of precise heavy-load Intelligent adjustment huge revolving table |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350567A (en) * | 2017-09-20 | 2017-11-17 | 红河学院 | A kind of high-precision table top of gear grinding machines |
| CN109596430A (en) * | 2018-10-19 | 2019-04-09 | 中国科学院地质与地球物理研究所 | Heavy-loaded precision turntable |
-
2015
- 2015-04-07 CN CN201520201362.7U patent/CN204524978U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350567A (en) * | 2017-09-20 | 2017-11-17 | 红河学院 | A kind of high-precision table top of gear grinding machines |
| CN109596430A (en) * | 2018-10-19 | 2019-04-09 | 中国科学院地质与地球物理研究所 | Heavy-loaded precision turntable |
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