CN203542075U - Static-pressure type rotary working table - Google Patents
Static-pressure type rotary working table Download PDFInfo
- Publication number
- CN203542075U CN203542075U CN201320555795.3U CN201320555795U CN203542075U CN 203542075 U CN203542075 U CN 203542075U CN 201320555795 U CN201320555795 U CN 201320555795U CN 203542075 U CN203542075 U CN 203542075U
- Authority
- CN
- China
- Prior art keywords
- static
- annular boss
- panoramic table
- seat body
- table base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 41
- 230000002706 hydrostatic effect Effects 0.000 claims description 37
- 230000003068 static effect Effects 0.000 claims description 31
- 230000013011 mating Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 47
- 238000010586 diagram Methods 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 241000167854 Bourreria succulenta Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
- B23Q1/52—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair
- B23Q1/522—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair which is perpendicular to the working surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model discloses a static-pressure type rotary working table. The static-pressure type rotary working table comprises a rotary table base with a second annular boss, a rotary table with a first annular boss and a third annular boss, a torque motor and a radial static-pressure bearing seat body, wherein a radial static-pressure oil film is arranged between the outer side end of the radial static-pressure bearing seat body and the inner side end of the third annular boss; an annular slide seat body is connected to the bottom end of the third annular boss; a first axial static-pressure oil film is arranged between the lower end of the annular slide seat body and the upper end of the rotary table base; a second axial static-pressure oil film is arranged between the upper end of the annular slide seat body and the lower end of the rotary table base. By charging high-pressure oil in various static-pressure oil cavities to form the first axial static-pressure oil film, the second axial static-pressure oil film and the radial static-pressure oil film, friction resistance between the third annular boss and the annular slide seat body, and the radial static-pressure bearing seat body and the rotary table base can be reduced, and the movement stability and movement accuracy of the rotary working table can be improved. The static-pressure type rotary working table disclosed by the utility model is used for the technical field of rotary tables.
Description
Technical field
the utility model relates to machining equipment technical field, particularly a kind of rotary table.
Background technology
traditional rotary table mainly adopts servomotor mate gear reducing gear or servomotor to coordinate the type of drive of turbine and worm decelerator, owing to all there is certain drive gap in gear reduction and turbine and worm decelerator, thereby this type of drive is difficult to meet the high rotary table of rotating accuracy requirement, and traditional rotary table adopt more rolling bearing pedestal radially, axial support, this supporting way is owing to be difficult to by the precision of rolling bearing and the impact of the accuracy of manufacture to make rotary table to obtain very high kinematic accuracy.
Utility model content
Technical problem to be solved in the utility model is to provide the static pressure type rotary table that a kind of bearing capacity is strong, rotating accuracy is high.
For solving the problems of the technologies described above adopted technical scheme: a kind of static pressure type rotary table, comprise panoramic table base and be located at the panoramic table on panoramic table base, panoramic table middle part and outer rim are axially extended with respectively the first annular boss and the 3rd annular boss downwards, panoramic table datum axle is to having extended upward the second annular boss, between the first annular boss and the second annular boss, be provided with torque motor, the rotor of torque motor is fixedly connected with the first annular boss of panoramic table, the stator of torque motor is fixedly connected with the second annular boss of panoramic table base, between the 3rd annular boss medial extremity and the second annular boss outboard end, be provided with radially hydrostatic bearing pedestal, outside hydrostatic bearing pedestal radially, between end face and the mating surface of the 3rd annular boss inner side end, be provided with static-pressure oil chamber to form radially static pressure oil film, in the 3rd annular boss bottom, be connected with the annular slide seat body that lower surface contacts with panoramic table base upper surface and upper surface contacts with hydrostatic bearing pedestal lower surface, between annular slide seat body lower surface and the mating surface of panoramic table base upper surface, be provided with static-pressure oil chamber to form the first axial static force feed film, between annular slide seat body upper surface and the mating surface of hydrostatic bearing pedestal lower surface, be provided with static-pressure oil chamber to form the second axial static force feed film.
Be further used as the improvement of technical solutions of the utility model, in panoramic table base outer rim, have oil-in and oil-out, at panoramic table base with radially have the oil-feed runner that is communicated with oil-in and each static-pressure oil chamber in hydrostatic bearing pedestal, in panoramic table base and annular slide seat body, have the fuel-displaced runner of each static-pressure oil chamber of connection and oil-out.
Be further used as the improvement of technical solutions of the utility model, in panoramic table base outer rim upper end, around described annular slide seat body, be provided with sealing ring.
Beneficial effect: this static pressure type rotary table forms the first axial static force feed film by pass into hydraulic oil at each static-pressure oil chamber, the second axial static force feed film, annular slide seat body and hydrostatic bearing pedestal radially in the time of can reducing to rotate, frictional resistance between panoramic table base, stable working is reliable, rotary table transmission accuracy is improved greatly, contact area between annular slide seat body and panoramic table base is large simultaneously, further improved the bearing capacity of panoramic table, at the radially static pressure oil film radially forming between hydrostatic bearing pedestal and the 3rd annular boss, also further improve robust motion and the kinematic accuracy of rotary table, adopt torque motor to there is the slow-speed of revolution, high pulling torque, the corresponding feature such as fast, can directly drive panoramic table to rotate and save intermediate transmission mechanism to reduce drive gap, thereby effectively improve transmission accuracy and job stability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further;
Fig. 1 is the cutaway view of the utility model embodiment;
Fig. 2 is the side view of the utility model embodiment;
Fig. 3 is the oil-feed schematic diagram of panoramic table base in the utility model embodiment;
Fig. 4 forms the radially oil-feed schematic diagram of static pressure oil film at hydrostatic bearing pedestal inner side end radially in the utility model embodiment;
Fig. 5 forms the oil-feed schematic diagram of the second axial static force feed film in hydrostatic bearing pedestal lower surface radially in the utility model embodiment;
Fig. 6 is the fuel-displaced schematic diagram of panoramic table base in the utility model embodiment.
The specific embodiment
Referring to figs. 1 through Fig. 6, a kind of static pressure type rotary table of the utility model, comprise panoramic table base 20 and be located at the panoramic table 10 on panoramic table base 20, panoramic table 10 middle parts and outer rim are axially extended with respectively the first annular boss 11 and the 3rd annular boss 13 downwards, panoramic table base 20 has axially extended upward the second annular boss 22, between the 3rd annular boss 13 medial extremitys and the second annular boss 22 outboard ends, be provided with radially hydrostatic bearing pedestal 50, radially between hydrostatic bearing pedestal 50 outside end faces and the mating surface of the 3rd annular boss 13 inner side ends, be provided with static-pressure oil chamber 40 to form radially static pressure oil film, in the 3rd annular boss 13 bottoms, be connected with the annular slide seat body 14 that lower surface contacts with panoramic table base 20 upper surfaces and upper surface contacts with hydrostatic bearing pedestal 50 lower surfaces, between annular slide seat body 14 lower surfaces and the mating surface of panoramic table base 20 upper surfaces, be provided with static-pressure oil chamber 40 to form the first axial static force feed film, between annular slide seat body 14 upper surfaces and the mating surface of hydrostatic bearing pedestal 50 lower surfaces, be provided with static-pressure oil chamber 40 to form the second axial static force feed film.
In the present embodiment, panoramic table 10 is with respect to 20 rotations of panoramic table base, panoramic table base 20 is roughly a dish type, its diameter is greater than panoramic table 10 diameters, the outer rim of annular slide seat body 14 adopts screw to be fixedly connected with the 3rd annular boss 13 bottoms, this annular slide seat body 14 rotates with panoramic table 10, annular slide seat body 14 radially makes its internal diameter be greater than the internal diameter of the 3rd annular boss 13 toward interior extension, the lower surface of annular slide seat body 14 contacts with the upper surface of panoramic table base 20, hydrostatic bearing pedestal 50 is in the form of a ring placed between the second annular boss 22 and the 3rd annular boss 13 and on annular slide seat body 14, the cooperation that contacts with the inner side end of the 3rd annular boss 13 of the outside end face of hydrostatic bearing pedestal 50, the cooperation and the lower surface of hydrostatic bearing pedestal 50 contacts with the upper surface of annular slide seat body 14, in the present invention, annular slide seat body 14 is as main carrying stressed member, by be provided with static-pressure oil chamber 40 between annular slide seat body 14 lower surfaces and the mating surface of panoramic table base 20 upper surfaces, at static-pressure oil chamber 40, pass into hydraulic oil to form the first axial static force feed film, existence due to the first axial static force feed film, when annular slide seat body 14 rotates, frictional resistance between annular slide seat body 14 and fixing panoramic table base 20 is very little, stable working is reliable, rotary table transmission accuracy is improved greatly, contact area between annular slide seat body 14 and panoramic table base 20 is large simultaneously, greatly improved the bearing capacity of panoramic table 10, radially hydrostatic bearing pedestal 50 and the second annular boss 22 are fixed together, radially between the mating surface between hydrostatic bearing pedestal 50 lower surfaces and annular slide seat body 14 upper surfaces, be provided with static-pressure oil chamber 40, at static-pressure oil chamber 40, pass into hydraulic oil to form the second axial static force feed film, annular slide seat body 14 and the frictional resistance between hydrostatic bearing pedestal 50 radially in the time of can reducing to rotate, and be provided with static-pressure oil chamber 40 at the mating surface between hydrostatic bearing pedestal 50 and the 3rd annular boss 13 radially, at static-pressure oil chamber 40, pass into hydraulic oil to form radially static pressure oil film, radially on hydrostatic bearing pedestal 50, forming radial support, during panoramic table 10 rotation work, owing to radially having one deck oil film between hydrostatic bearing pedestal 50 and the 3rd annular boss 13, greatly reduce the radially relative friction of hydrostatic bearing pedestal 50 and the 3rd annular boss 13, improve robust motion and the kinematic accuracy of rotary table.
As preferred embodiment of the present utility model, in panoramic table base 20 outer rims, have oil-in 23 and oil-out 24, at panoramic table base 20 with radially have the oil-feed runner that is communicated with oil-in 23 and each static-pressure oil chamber 40 in hydrostatic bearing pedestal 50, in panoramic table base 20 and annular slide seat body 14, have the fuel-displaced runner that is communicated with each static-pressure oil chamber 40 and oil-out 24.
As preferred embodiment of the present utility model, in panoramic table base 20 outer rim upper ends, around described annular slide seat body 14, be provided with sealing ring 25.
Fig. 3 to Fig. 6 is the longitudinal sectional view to rotary table in different angles.
Fig. 3 illustrate in the present embodiment panoramic table base 20 and radially the oil-feed runner in hydrostatic bearing pedestal 50 arrange schematic diagram, at panoramic table base 20, radially have a main oil input channel 60, at panoramic table base 20, have first ring connected in star with the upper surface that annular slide seat body 14 coordinates, first ring connected in star forms static-pressure oil chamber 40, at interior the first oil input channel 61 that is communicated with first ring connected in star and main oil input channel 60 that vertically has of panoramic table base 20, hydraulic oil flows into through the first oil input channel 61 and passes into first ring connected in star and form the first axial static force feed film from main oil input channel 60, in the second annular boss 22, have the inferior oil input channel 64 communicating with main oil input channel 60, the end of inferior oil input channel 64 is opened to the second annular boss 22 and the ring-shaped throttling gap 65 that radially forms between hydrostatic bearing pedestal 50, hydraulic oil is through the 65 infiltration circulations in ring-shaped throttling gap of time oil input channel 64.
Fig. 4 illustrates in the present embodiment and at hydrostatic bearing pedestal 50 radially, to have runner and form the radially oil-feed schematic diagram of static pressure oil film, radially in hydrostatic bearing pedestal 50, radially having the second oil input channel 62, at hydrostatic bearing pedestal 50 outside end faces radially, have the second annular groove, the second annular groove forms static-pressure oil chamber 40, the second oil input channel 62 is communicated with annular throttle chink 65 and the second annular grooves, at the hydraulic oil that is arranged in ring-shaped throttling gap 65, through the second oil input channel 62, passes into the second annular groove and forms radially static pressure oil film.
Fig. 5 illustrates in the present embodiment at hydrostatic bearing pedestal 50 radially and has the oil-feed schematic diagram that runner forms the second axial static force feed film, radially in hydrostatic bearing pedestal 50, having the 3rd oil input channel 63, in hydrostatic bearing pedestal 50 lower surfaces radially, have the 3rd annular groove, the 3rd annular groove forms static-pressure oil chamber 40, the 3rd oil input channel 63 is communicated with annular throttle chink 65 and the 3rd annular groove, at the hydraulic oil that is arranged in ring-shaped throttling gap 65, through the 3rd oil input channel 63, pass into the 3rd annular groove and form the second axial static force feed film
Fig. 6 illustrates the fuel-displaced runner in panoramic table base 20 in the present embodiment and arranges schematic diagram, in panoramic table base 20, radially have a main oil road 70, in panoramic table base 20 upper surfaces, have for collecting the annular groove 71 of fluid, annular groove 71 communicates with main oil road 70, fluid in each static-pressure oil chamber 40 fit clearance between each parts in rotary table flows in annular groove 71 and through main oil road 70, flows out, at the outer sealing ring 25 that arranges of annular slide seat body 14, to stop fluid, oozes out.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken possessing at described technical field those of ordinary skill, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (3)
1. a static pressure type rotary table, it is characterized in that: comprise panoramic table base (20) and be located at the panoramic table (10) on described panoramic table base (20), described panoramic table (10) middle part and outer rim are axially extended with respectively the first annular boss (11) and the 3rd annular boss (13) downwards, described panoramic table base (20) has axially extended upward the second annular boss (22), between the first annular boss (11) and the second annular boss (22), be provided with torque motor, the rotor of described torque motor (31) is fixedly connected with first annular boss (11) of panoramic table (10), the stator of described torque motor (32) is fixedly connected with second annular boss (22) of panoramic table base (20), between described the 3rd annular boss (13) medial extremity and the second annular boss (22) outboard end, be provided with radially hydrostatic bearing pedestal (50), between described radially hydrostatic bearing pedestal (50) outside end face and the mating surface of the 3rd annular boss (13) inner side end, be provided with static-pressure oil chamber (40) to form radially static pressure oil film, in described the 3rd annular boss (13) bottom, be connected with the annular slide seat body (14) that lower surface contacts with panoramic table base (20) upper surface and upper surface contacts with hydrostatic bearing pedestal (50) lower surface, between described annular slide seat body (14) lower surface and the mating surface of panoramic table base (20) upper surface, be provided with static-pressure oil chamber (40) to form the first axial static force feed film, between described annular slide seat body (14) upper surface and the mating surface of hydrostatic bearing pedestal (50) lower surface, be provided with static-pressure oil chamber (40) to form the second axial static force feed film.
2. static pressure type rotary table according to claim 1, it is characterized in that: in described panoramic table base (20) outer rim, have oil-in (23) and oil-out (24), at described panoramic table base (20) with radially have the oil-feed runner that is communicated with oil-in (23) and each static-pressure oil chamber (40) in hydrostatic bearing pedestal (50), in described panoramic table base (20) and annular slide seat body (14), have the fuel-displaced runner that is communicated with each static-pressure oil chamber (40) and oil-out (24).
3. static pressure type rotary table according to claim 1 and 2, is characterized in that: in described panoramic table base (20) outer rim upper end, around described annular slide seat body (14), be provided with sealing ring (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555795.3U CN203542075U (en) | 2013-09-06 | 2013-09-06 | Static-pressure type rotary working table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555795.3U CN203542075U (en) | 2013-09-06 | 2013-09-06 | Static-pressure type rotary working table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203542075U true CN203542075U (en) | 2014-04-16 |
Family
ID=50460243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320555795.3U Expired - Lifetime CN203542075U (en) | 2013-09-06 | 2013-09-06 | Static-pressure type rotary working table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203542075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025335A (en) * | 2020-08-10 | 2020-12-04 | 北京海普瑞森超精密技术有限公司 | Ultra-precise hydraulic servo turntable |
-
2013
- 2013-09-06 CN CN201320555795.3U patent/CN203542075U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025335A (en) * | 2020-08-10 | 2020-12-04 | 北京海普瑞森超精密技术有限公司 | Ultra-precise hydraulic servo turntable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |