CN201913327U - High-accuracy heavy-load static pressure numerical control rotary working table - Google Patents
High-accuracy heavy-load static pressure numerical control rotary working table Download PDFInfo
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- CN201913327U CN201913327U CN2010206387570U CN201020638757U CN201913327U CN 201913327 U CN201913327 U CN 201913327U CN 2010206387570 U CN2010206387570 U CN 2010206387570U CN 201020638757 U CN201020638757 U CN 201020638757U CN 201913327 U CN201913327 U CN 201913327U
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- static pressure
- working table
- ring
- boss
- rotary table
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Abstract
The utility model discloses a high-accuracy heavy-load static pressure numerical control rotary working table which is provided with a rotary working table, and is characterized by being provided with a working table base, a static pressure guide rail plate, a static pressure cone ring, a driving gear ring, speed reducing boxes and a servo motor, wherein a boss is arranged at the upper end of the working table base, and the speed reducing boxes are respectively arranged at two sides of the working table base; the periphery of the boss is provided with a ring-shaped groove which is internally provided with a static pressure guide rail plate; the lower end of the rotary working table is provided with a guide rail surface; the lower end of a central hole is provided with a taper hole; the rotary working table is contacted with the static pressure guide rail plate arranged on the working table base by the guide rail surface; the lower end of the static pressure cone ring is provided with a groove; the static pressure cone ring is sheathed with the boss arranged at the upper end of the working table base by the groove and is fixed on the boss by a bolt; the static pressure cone ring is matched and located with the taper hole arranged at the lower end of the rotary working table; a tapered surface of the static pressure cone ring is provided with an oil cavity; the excircle of the rotary working table is provided with the driving gear ring; and the output gears of the speed reducing boxes are meshed with the driving gear ring, and the output ends of the speed reducing boxes are connected with the servo motor. The high-accuracy heavy-load static pressure numerical control rotary working table is simple in structure and good in processing and assembling manufacturability, and meets the processing accuracy requirement of a gear ring with large modulus and great diameter.
Description
Technical field
The utility model relates to the Machining Technology field, specifically a kind of large-sized numerical control gear-hobbing machine high precision overloading NC rotary table that is mainly used in big modulus, the heavy gear ring processing of major diameter.
Background technology
In prior art, the radial location mode of workbench is cylinder or circular cone static pressure face, static pressure face and static pressure oil pocket need process on casting material, need after the processing to carry out facing-up with workbench cylinder or taper seat, what scraping cooperated has relatively high expectations, and technology difficulty is bigger, and the scraping workload is big, assembly period is long, and efficient is low; Also corresponding higher to the requirement of casting material, and maintenance difficult.Fabrication cycle and cost for large-scale gear hobbing machine all are uneconomic.
In prior art, the rotary table of large-scale gear hobbing machine adopts high power DC electric machine to drive transmission bar and transmits motion to main transmission box, drive dividing worm wheel, worm gear pair drives workbench, the DC motor speed-regulating scope is little, the transmission system driving-chain is oversize, to dividing worm wheel, the requirement on machining accuracy of worm gear pair is higher, worm gear, the gap of worm gear pair is adjusted complicated, bigger to the influence of rotary table overall precision, lathe is processed with the hobboing cutter method, the processing work precision is 7 grades (diameters be 5 meters with lower ring gear), process with the monodentate indexing, workpiece accuracy is 8 grades (diameter is 5 meters gear rings), can't satisfy nuclear power, the mine, heavy-duty machinery industry product specification continues to increase upgrading to big modulus, the requirement on machining accuracy of major diameter gear ring.
Summary of the invention
The purpose of this utility model is to overcome the weak point of above-mentioned technology, thereby provide a kind of simple in structure, processing, the assembly technology difficulty is less, cost is relatively low, precision is higher, can satisfy the large-sized numerical control gear-hobbing machine high precision overloading NC rotary table of the requirement on machining accuracy of big modulus, major diameter gear ring.
A kind of high precision overloading static pressure numerical control rotary worktable, be provided with rotary table, it is characterized in that being provided with table base, the hydrostatic slideway plate, the static pressure conical ring, drive gear ring, reduction box and servomotor, the table base upper end is provided with boss, both sides are respectively equipped with reduction box, the boss periphery is provided with annular groove, be provided with the hydrostatic slideway plate in the annular groove, the rotary table lower end is provided with guide pass, the centre bore lower end is provided with bellmouth, rotary table contacts through the hydrostatic slideway plate that guide pass and table base are provided with, rotary table can be rotated around the table base central axis, the static pressure conical ring is inversed taper platform shape, static pressure conical ring lower end is provided with groove, the boss of static pressure conical ring through groove and table base upper end is nested and merges through being bolted on the boss, the static pressure conical ring location of matching with the bellmouth that the rotary table lower end is provided with, be beneficial to rotary table radially, axial location, the taper surface of static pressure conical ring is provided with oil pocket, the rotary table cylindrical is provided with the driving gear ring, the reduction box output gear is meshed with driving gear ring, and output is connected with servomotor.
The utility model can be provided with the adjustment pad between table base and static pressure conical ring, be beneficial to adjust pad by match grinding and make the gap of static pressure conical ring and rotary table inner conical surface reach the designing requirement value.
The bellmouth surface of the rotary table in the utility model by the Mo Like guide rail be coated with that dressing is smeared by scraping, casting or injecting method obtain, and be simple in structure, good manufacturability, easy to maintenance quick.
Rotary table in the utility model is provided with the processing of hobboing cutter method and two kinds of control models of one division processing, the hobboing cutter method adds the man-hour driven by servomotor and adopts many motors principal and subordinate control, the power of stackable like this all motors, by this cover system, the rotating speed that can control rotary table does not need the mechanical gear shift gear mechanism from zero to maximal rate; One division adds the prestrain of driven by servomotor employing in man-hour electronics and eliminates the gear drive gap, realizes numerical control rotation C axle.
The beneficial effects of the utility model are: rotary table is simple in structure, processing, assembly process process is good, workbench drives and adopts many motors principal and subordinate control and electronics prestrain control, the rotating speed that can realize workbench does not need the mechanical gear shift gear mechanism from zero to maximal rate, adopt electronics prestrain to eliminate the gear drive gap, realize numerical control rotation C axle, can satisfy the large-sized numerical control gear-hobbing machine high precision overloading numerical control rotary of the requirement on machining accuracy of big modulus, major diameter gear ring.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation of enlarged drawing of the C of Fig. 2.
Mark among the figure: table base 1, rotary table 2, static pressure conical ring 3, driving gear ring 4, reduction box 5, servomotor 6, adjustment pad 7, hydrostatic slideway plate 8, static pressure taper seat 9, boss 10, annular groove 11.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
A kind of high precision overloading static pressure numerical control rotary worktable, be provided with rotary table 2, it is characterized in that being provided with table base 1, hydrostatic slideway plate 8, static pressure conical ring 3, drive gear ring 4, reduction box 5 and servomotor 6, table base 1 upper end is provided with boss 10, both sides are respectively equipped with reduction box 5, boss 10 peripheries are provided with annular groove 11, be provided with hydrostatic slideway plate 8 in the annular groove 11, rotary table 2 lower ends are provided with guide pass, the centre bore lower end is provided with bellmouth, rotary table 2 contacts through the hydrostatic slideway plate 8 that guide pass and table base 1 are provided with, rotary table 2 can be rotated around table base 1 central axis, static pressure conical ring 3 is inversed taper platform shape, static pressure conical ring 3 lower ends are provided with groove, the boss 10 of static pressure conical ring 3 through groove and table base 1 upper end is nested and merges through being bolted on the boss 10, static pressure conical ring 3 location of matching with the bellmouth that rotary table 2 lower ends are provided with, be beneficial to rotary table 2 radially, axial location, the taper surface of static pressure conical ring 3 is provided with oil pocket, rotary table 2 cylindricals are provided with and drive gear ring 4, reduction box 5 output gears are meshed with driving gear ring 4, and output is connected with servomotor 6.
The utility model can be provided with between table base 1 and static pressure conical ring 3 adjusts pad 7, is beneficial to adjust pad 7 by match grinding and makes the static pressure conical ring 3 and the gap of rotary table 2 inner conical surfaces reach the designing requirement value.
The bellmouth surface of the rotary table 2 in the utility model by the Mo Like guide rail be coated with that dressing is smeared by scraping, casting or injecting method obtain, and be simple in structure, good manufacturability, easy to maintenance quick.
Rotary table 2 in the utility model radially, axial location realizes by the inversed taper platform shape static pressure taper seat 9 on the static pressure conical ring 3, wherein the contact precision of the hydrostatic slideway plate 8 on rotary table 2 guide pass and the table base 1 is scraped assurance by shovel, the inner conical surface precision of rotary table 2 guarantees by finish turning processing, after the contact precision for the treatment of hydrostatic slideway plate 8 on workbench 2 guide pass and the table base 1 reaches designing requirement, adjusting pad 7 by match grinding makes the static pressure conical ring 3 and the gap of rotary table 2 inner conical surfaces reach the designing requirement value, the Mo Like guide rail is coated with dressing to be smeared by scraping, casting modes such as (or injections) is sent in the gap of static pressure conical ring 3 and workbench 2 inner conical surfaces, can obtain inversed taper platform shape static pressure taper seat 9 and oil pocket, simple in structure, good manufacturability, the efficient height, easy to maintenance quick, relatively low to the material requirements of static pressure conical ring, relative cost is low.
Rotary table in the utility model adopts a plurality of pinions of a plurality of servomotor 6 mate gear reduction boxes, 5 outputs to drive the type of drive that drives gear ring 4 jointly, digital control system is provided with the processing of hobboing cutter method and two kinds of control models of one division processing, the hobboing cutter method adds servomotor 6 many motors of employing principal and subordinate controls in man-hour, the power of stackable like this all motors, by this cover system, the rotating speed that can control workbench 2 does not need the mechanical gear shift gear mechanism from zero to maximal rate; One division adds man-hour, and servomotor 6 adopts electronics prestrain to eliminate the gear drive gap, realizes numerical control rotation C axle.Adopt said structure and control mode, can make rotary table have bigger nominal torque, can carry the load of self and workpiece and have good dynamic characteristics, have good rotating accuracy to guarantee it.Adopt the gear-hobbing machine of the utility model rotary table to process with the hobboing cutter method: the processing work precision is 5 grades (diameters be 4.5 meters with lower ring gear); The processing work precision is 6 grades (diameter is a 4.5-6 rice gear ring); The processing work precision is 7 grades (diameter is that 6-10 rice is with lower ring gear); The processing work precision is 9 grades (diameter is a 10-14 rice gear ring); Process with the monodentate indexing: workpiece accuracy is 10 grades (diameter is a 14-16 rice gear ring), can satisfy nuclear power, mine, heavy-duty machinery industry product specification fully and continue to increase the requirement on machining accuracy of upgrading to big modulus, major diameter gear ring.
Claims (3)
1. high precision overloading static pressure numerical control rotary worktable, be provided with rotary table, it is characterized in that being provided with table base, the hydrostatic slideway plate, the static pressure conical ring, drive gear ring, reduction box and servomotor, the table base upper end is provided with boss, both sides are respectively equipped with reduction box, the boss periphery is provided with annular groove, be provided with the hydrostatic slideway plate in the annular groove, the rotary table lower end is provided with guide pass, the centre bore lower end is provided with bellmouth, rotary table contacts through the hydrostatic slideway plate that guide pass and table base are provided with, the static pressure conical ring is inversed taper platform shape, static pressure conical ring lower end is provided with groove, and the boss of static pressure conical ring through groove and table base upper end is nested and merges through being bolted on the boss, the static pressure conical ring location of matching with the bellmouth that the rotary table lower end is provided with, the taper surface of static pressure conical ring is provided with oil pocket, the rotary table cylindrical is provided with the driving gear ring, and the reduction box output gear is meshed with driving gear ring, and output is connected with servomotor.
2. a kind of high precision overloading static pressure numerical control rotary worktable according to claim 1 is characterized in that being provided with the adjustment pad between table base and the static pressure conical ring.
3. a kind of high precision overloading static pressure numerical control rotary worktable according to claim 1, the bellmouth surface that it is characterized in that rotary table by the Mo Like guide rail be coated with that dressing is smeared by scraping, casting or injecting method obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387570U CN201913327U (en) | 2010-12-02 | 2010-12-02 | High-accuracy heavy-load static pressure numerical control rotary working table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206387570U CN201913327U (en) | 2010-12-02 | 2010-12-02 | High-accuracy heavy-load static pressure numerical control rotary working table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201913327U true CN201913327U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206387570U Expired - Fee Related CN201913327U (en) | 2010-12-02 | 2010-12-02 | High-accuracy heavy-load static pressure numerical control rotary working table |
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| CN (1) | CN201913327U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019468A (en) * | 2010-12-02 | 2011-04-20 | 威海华东数控股份有限公司 | High-precision heavy-duty static pressure numerical control rotary table |
| CN102729052A (en) * | 2012-03-19 | 2012-10-17 | 浙江嘉力宝精机股份有限公司 | Static pressure workbench for forming gear grinding machine |
| CN106736636A (en) * | 2016-12-07 | 2017-05-31 | 北京工业大学 | Polymorphic type lubricating pad composite support heavy type static pressure turntable |
| CN108170884A (en) * | 2017-11-27 | 2018-06-15 | 华侨大学 | A kind of pedestal of CNC milling machine pedestal optimum design method and optimization design |
-
2010
- 2010-12-02 CN CN2010206387570U patent/CN201913327U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019468A (en) * | 2010-12-02 | 2011-04-20 | 威海华东数控股份有限公司 | High-precision heavy-duty static pressure numerical control rotary table |
| CN102729052A (en) * | 2012-03-19 | 2012-10-17 | 浙江嘉力宝精机股份有限公司 | Static pressure workbench for forming gear grinding machine |
| CN102729052B (en) * | 2012-03-19 | 2014-07-30 | 浙江嘉力宝精机股份有限公司 | Static pressure workbench for forming gear grinding machine |
| CN106736636A (en) * | 2016-12-07 | 2017-05-31 | 北京工业大学 | Polymorphic type lubricating pad composite support heavy type static pressure turntable |
| CN108170884A (en) * | 2017-11-27 | 2018-06-15 | 华侨大学 | A kind of pedestal of CNC milling machine pedestal optimum design method and optimization design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20121202 |