CN211738356U - Rotary joint of rotary table - Google Patents
Rotary joint of rotary table Download PDFInfo
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- CN211738356U CN211738356U CN202020204661.7U CN202020204661U CN211738356U CN 211738356 U CN211738356 U CN 211738356U CN 202020204661 U CN202020204661 U CN 202020204661U CN 211738356 U CN211738356 U CN 211738356U
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Abstract
The utility model relates to a rotary joint of a rotary table, which comprises a sealing ring and a rotary sleeve, wherein the inner circle surface of the rotary sleeve is provided with an annular oil inlet groove and a sealing groove, the top of the rotary sleeve is provided with an oil outlet, the oil outlet corresponds to and is communicated with the oil inlet groove, the sealing ring is arranged in the sealing groove, and the oil inlet groove is positioned between two adjacent sealing grooves; the rotating shaft is inserted on the rotating sleeve in a rotating mode, the outer circular surface of the rotating shaft is provided with an outer oil hole, the outer oil hole corresponds to and is communicated with the oil inlet groove, the bottom of the rotating shaft is provided with a bottom oil hole, and the bottom oil hole is communicated with the outer oil hole; the bottom of the rotating shaft is fixed on the connecting seat, the top of the connecting seat is provided with a top oil hole, the side surface or the bottom surface of the connecting seat is provided with an oil inlet hole, and the oil inlet hole is communicated with the top oil hole; and the fixing ring is fixed at the top of the rotating shaft and is positioned at the top of the rotating sleeve in a sliding manner. The rotary joint of the rotary table realizes oil supply while rotating, can be provided with a plurality of oil ways, does not need a hydraulic hose, and has the advantages of small occupied space, convenient use and no influence on clamping of workpieces.
Description
Technical Field
The utility model relates to a rotary joint, especially revolving stage rotary joint.
Background
In order to cooperate with machining or assembly, some working tables need to rotate, and a plurality of oil hydraulic cylinders are arranged on the rotating working tables and used for clamping workpieces. At present, hydraulic hoses are mostly adopted to realize connection with hydraulic stations. Because the hose is more, lead to the pipeline complicated, occupation space is big to it is inconvenient to rotate, influenced processing greatly.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a can realize that a plurality of oil circuits rotate the revolving stage rotary joint who connects, need not hydraulic hose, occupation space is little, convenient to use, do not influence processing, concrete technical scheme is:
the rotary joint of the rotary table comprises a sealing ring and a rotary sleeve, wherein at least one annular oil inlet groove and at least two annular sealing grooves are formed in the inner circular surface of the rotary sleeve, oil outlet holes are formed in the top of the rotary sleeve, the number of the oil outlet holes is the same as that of the oil inlet grooves, the oil outlet holes correspond to and are communicated with the oil inlet grooves, the sealing ring is arranged in each sealing groove, and the oil inlet grooves are located between the two adjacent sealing grooves; the rotating shaft is inserted into the rotating sleeve in a rotating mode, outer oil holes the number of which is consistent with that of the oil inlet grooves are formed in the outer circular surface of the rotating shaft, the outer oil holes correspond to and are communicated with the oil inlet grooves, bottom oil holes the number of which is consistent with that of the outer oil holes are formed in the bottom of the rotating shaft, and the bottom oil holes are communicated with the outer oil holes; the bottom of the rotating shaft is fixed on the connecting seat, the top of the connecting seat is provided with top oil holes the number of which is consistent with that of the bottom oil holes, the side surface or the bottom surface of the connecting seat is provided with oil inlet holes the number of which is consistent with that of the top oil holes, and the oil inlet holes are communicated with the top oil holes; and the fixing ring is fixed at the top of the rotating shaft and is positioned at the top of the rotating sleeve in a sliding manner.
Through adopting above-mentioned technical scheme, the swivel sleeve is connected with swivel work head, the connecting seat is installed on fixed station, the swivel sleeve rotates along with swivel work head, because the oil outlet communicates with each other through oil feed tank and outer oilhole, and outer oilhole communicates with each other through the inlet port on bottom oilhole and the connecting seat, consequently realized carrying out the fuel feeding in rotatory, and can set up a plurality of oil circuits, need not hydraulic hose, occupation space is little, high durability and convenient use, do not influence the clamping of work piece, long service life, the moment of torsion is little, compact size, be applicable to oil pressure, atmospheric pressure.
The rotary part is arranged in the center hole of the rotary workbench by adopting a built-in structure, and the outside is only provided with the connecting block for the oil connecting way, so that the space of the center hole of the rotary workbench is effectively utilized, the volume is small, the structure is compact, the external connecting oil pipe is neat and attractive, and the space occupied by the outside of a machine tool is small.
Furthermore, the rotating shaft is provided with annular communicating grooves, the number of the annular communicating grooves is the same as that of the outer oil holes, the outer oil holes are located at the bottom of the communicating grooves, and the communicating grooves correspond to and are communicated with the oil inlet grooves.
Through adopting above-mentioned technical scheme, further guarantee effectual intercommunication through the intercommunication groove.
The bearing is respectively fixed at two ends of the outer circular surface of the rotating shaft and two ends of the inner circular surface of the rotating sleeve, and the fixing ring is tightly pressed on the inner ring of the bearing positioned at the top of the rotating shaft.
Through adopting above-mentioned technical scheme, the bearing can reduce the friction between rotation axis and the swivel sleeve, improves life.
Furthermore, the dust-proof device also comprises a dust-proof ring, and the dust-proof ring is arranged between the rotating sleeve and the rotating shaft.
Further, the device also comprises an upper central through hole which is arranged in the center of the rotating shaft;
the lower central through hole is formed in the center of the connecting seat, and the upper central through hole is coaxial and communicated with the lower central through hole.
By adopting the technical scheme, the central through hole has larger diameter and large flow, and is used for large flow, such as the conveying of cooling liquid for a machine tool.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a revolving stage rotary joint has realized carrying out the fuel feeding in rotatory to can set up a plurality of oil circuits, need not hydraulic hose, occupation space is little, convenient to use, do not influence clamping, long service life, the moment of torsion of work piece little, compact, be applicable to oil pressure, atmospheric pressure.
Drawings
FIG. 1 is a perspective view of a rotary joint of a turntable;
FIG. 2 is a front view of the rotary joint of the turntable;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view of the rotating sleeve;
FIG. 5 is a schematic view of the structure of the rotating shaft;
fig. 6 is a sectional view of the rotary shaft;
FIG. 7 is a top view of the connecting socket;
fig. 8 is a sectional view of the second embodiment.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 7, the rotary joint of the rotary table includes a seal ring and a rotary sleeve 1, wherein at least one annular oil inlet groove 11 and at least two annular seal grooves 13 are formed in the inner circumferential surface of the rotary sleeve 1, oil outlet holes 12 are formed in the top of the rotary sleeve 1, the number of the oil outlet holes 12 is the same as that of the oil inlet grooves 11, the oil outlet holes 12 correspond to and are communicated with the oil inlet grooves 11, the seal grooves 13 are internally provided with the seal ring, and the oil inlet grooves 11 are located between two adjacent seal grooves 13; the rotary sleeve comprises a rotary shaft 2, the rotary shaft 2 is rotatably inserted into the rotary sleeve 1, the outer circumferential surface of the rotary shaft 2 is provided with outer oil holes 21 the number of which is consistent with that of the oil inlet grooves 11, the outer oil holes 21 correspond to and are communicated with the oil inlet grooves 11, the bottom of the rotary shaft 2 is provided with bottom oil holes 22 the number of which is consistent with that of the outer oil holes 21, and the bottom oil holes 22 are communicated with the outer oil holes 21; the bottom of the rotating shaft 2 is fixed on the connecting seat 3, the top of the connecting seat 3 is provided with top oil holes 31 the number of which is consistent with that of the bottom oil holes 22, the side surface or the bottom surface of the connecting seat 3 is provided with oil inlet holes 32 the number of which is consistent with that of the top oil holes 31, and the oil inlet holes 32 are communicated with the top oil holes 31; and the fixing ring 4 is fixed on the top of the rotating shaft 2, and is slidably positioned on the top of the rotating sleeve 1.
The oil outlet 12 is etched with numbers, and the oil inlet 32 of the connecting seat 3 is also etched with numbers which correspond to the numbers on the oil outlet 12 one by one.
When a plurality of oil outlet holes 12 are provided, the same number of oil feed grooves 11, outer oil holes 21, bottom oil holes 22, classic oil holes and oil feed holes 32 are correspondingly provided and correspond to one another.
The rotary shaft 2 is provided with annular communicating grooves 23 with the number consistent with that of the outer oil holes 21, the outer oil holes 21 are positioned at the bottom of the communicating grooves 23, and the communicating grooves 23 correspond to and are communicated with the oil inlet groove 11.
Effective communication is further ensured by the communication groove 23.
The rotary sleeve further comprises bearings 5, the bearings 5 are respectively fixed at two ends of the outer circular surface of the rotary shaft 2 and two ends of the inner circular surface of the rotary sleeve 1, and the fixing ring 4 is tightly pressed on an inner ring of the bearing 5 positioned at the top of the rotary shaft 2.
The bearing 5 can reduce the friction between the rotating shaft 2 and the rotating sleeve 1, and prolong the service life.
The dust-proof ring 6 is further included, and the dust-proof ring 6 is installed between the rotating sleeve 1 and the rotating shaft 2.
The rotary sleeve 1 is connected with the rotary workbench, the connecting seat 3 is installed on the fixed workbench, the rotary sleeve 1 rotates along with the rotary workbench, the oil outlet hole 12 is communicated with the outer oil hole 21 through the oil inlet groove 11, the outer oil hole 21 is communicated with the oil inlet hole 32 on the connecting seat 3 through the bottom oil hole 22, oil supply while rotation is achieved, a plurality of oil ways can be arranged, a hydraulic hose is not needed, the occupied space is small, the use is convenient, clamping of a workpiece is not affected, the service life is long, the torque is small, the size is compact, and the rotary sleeve is suitable for oil pressure and air pressure.
The rotary part is arranged in the center hole of the rotary workbench by adopting a built-in structure, and the outside is only provided with the connecting block for the oil connecting way, so that the space of the center hole of the rotary workbench is effectively utilized, the volume is small, the structure is compact, the external connecting oil pipe is neat and attractive, and the space occupied by the outside of a machine tool is small.
Example two
On the basis of the first embodiment, as shown in fig. 8, the rotating shaft further includes an upper center through hole 25, and the upper center through hole 25 is disposed at the center of the rotating shaft 2; a lower central through hole 35, the lower central through hole 35 is arranged at the center of the connecting seat 3, and the upper central through hole 25 is coaxial and communicated with the lower central through hole 35. The central through hole has larger diameter and large flow rate, and is used for large flow rate, such as the delivery of cooling liquid for a machine tool.
Claims (5)
1. The rotary joint of the rotary table comprises a sealing ring and is characterized by also comprising
The oil-gas separation device comprises a rotary sleeve (1), wherein at least one annular oil inlet groove (11) and at least two annular sealing grooves (13) are formed in the inner circular surface of the rotary sleeve (1), oil outlet holes (12) are formed in the top of the rotary sleeve (1), the number of the oil outlet holes (12) is the same as that of the oil inlet grooves (11), the oil outlet holes (12) correspond to and are communicated with the oil inlet grooves (11), sealing rings are arranged in the sealing grooves (13), and the oil inlet grooves (11) are located between the two adjacent sealing grooves (13);
the rotary shaft (2) is rotatably inserted into the rotary sleeve (1), the outer circular surface of the rotary shaft (2) is provided with outer oil holes (21) the number of which is consistent with that of the oil inlet groove (11), the outer oil holes (21) correspond to and are communicated with the oil inlet groove (11), the bottom of the rotary shaft (2) is provided with bottom oil holes (22) the number of which is consistent with that of the outer oil holes (21), and the bottom oil holes (22) are communicated with the outer oil holes (21);
the bottom of the rotating shaft (2) is fixed on the connecting seat (3), the top of the connecting seat (3) is provided with top oil holes (31) the number of which is consistent with that of the bottom oil holes (22), the side surface or the bottom surface of the connecting seat (3) is provided with oil inlet holes (32) the number of which is consistent with that of the top oil holes (31), and the oil inlet holes (32) are communicated with the top oil holes (31);
and the fixing ring (4) is fixed at the top of the rotating shaft (2), and is positioned at the top of the rotating sleeve (1) in a sliding manner.
2. The rotary joint of claim 1, wherein the rotary shaft (2) is provided with annular communicating grooves (23) having the same number as the outer oil holes (21), the outer oil holes (21) are located at the bottom of the communicating grooves (23), and the communicating grooves (23) correspond to and communicate with the oil inlet grooves (11).
3. A rotary joint of a turntable according to claim 1, further comprising bearings (5), said bearings (5) being fixed to both ends of the outer circumferential surface of the rotary shaft (2) and to both ends of the inner circumferential surface of said rotary sleeve (1), respectively, said fixing ring (4) being pressed against the inner ring of the bearing (5) located at the top of the rotary shaft (2).
4. Turntable rotary joint according to claim 1, further comprising a dust ring (6), said dust ring (6) being mounted between the rotary sleeve (1) and the rotary shaft (2).
5. Turntable rotary joint according to claim 1, further comprising an upper central through hole (25), said upper central through hole (25) being arranged in the centre of the rotary shaft (2); the lower central through hole (35), the lower central through hole (35) is arranged at the center of the connecting seat (3), and the upper central through hole (25) is coaxial and communicated with the lower central through hole (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204661.7U CN211738356U (en) | 2020-02-24 | 2020-02-24 | Rotary joint of rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204661.7U CN211738356U (en) | 2020-02-24 | 2020-02-24 | Rotary joint of rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211738356U true CN211738356U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020204661.7U Active CN211738356U (en) | 2020-02-24 | 2020-02-24 | Rotary joint of rotary table |
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| Country | Link |
|---|---|
| CN (1) | CN211738356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114932421A (en) * | 2022-05-25 | 2022-08-23 | 苏州上金数控科技有限公司 | Rotary air supply device and machine tool |
-
2020
- 2020-02-24 CN CN202020204661.7U patent/CN211738356U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114932421A (en) * | 2022-05-25 | 2022-08-23 | 苏州上金数控科技有限公司 | Rotary air supply device and machine tool |
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