CN220347920U - Direct-drive single-arm five-axis - Google Patents
Direct-drive single-arm five-axis Download PDFInfo
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- CN220347920U CN220347920U CN202321653122.1U CN202321653122U CN220347920U CN 220347920 U CN220347920 U CN 220347920U CN 202321653122 U CN202321653122 U CN 202321653122U CN 220347920 U CN220347920 U CN 220347920U
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- 239000003921 oil Substances 0.000 claims abstract description 132
- 238000003860 storage Methods 0.000 claims abstract description 42
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 2
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a direct-drive single-arm five-shaft, which comprises a B-shaft assembly and a C-shaft assembly, wherein the B-shaft assembly comprises a sealing disc facing one side of the C-shaft assembly, the C-shaft assembly comprises a shell, and the shell is rotationally connected with the upper side of the sealing disc; a containing cavity is arranged in the shell along the height direction of the shell, a bearing is arranged in the containing cavity, and a rotor and a stator are sequentially arranged outside the lower side of the bearing; an oil inlet cavity is formed in the B shaft assembly, an oil storage cavity is formed in one side, facing the sealing disc, of the shell, the oil storage cavity is communicated with the oil inlet cavity, and a first oil supply channel and a second oil supply channel are formed in one side, facing the bearing, of the oil storage cavity; the upper side of the bearing is provided with a hydraulic component, hydraulic oil in the first oil supply channel is used for providing power for the hydraulic component, and the hydraulic component is used for controlling the starting and stopping of the rotation of the bearing and providing hydraulic oil in the first oil supply channel and the second oil supply channel for lubricating the bearing and the rotor.
Description
Technical Field
The utility model relates to the technical field of five-axis linkage machining centers, in particular to a direct-drive single-arm five-axis.
Background
The five-axis turntable plays an important role in the processing of curved surface parts, and belongs to high-end functional components in a numerical control machine tool. Most five-axis turntables in the market at present depend on import and are high in price. The five-axis turntable is generally composed of a B-axis assembly, a swing arm, a workbench assembly (namely a C-axis assembly) and a supporting tailstock, wherein two ends of the swing arm are respectively connected with the B-axis assembly and the supporting tailstock, and the workbench assembly is arranged on the swing arm. The main function of the B-axis component is to support the main shaft and drive the swing arm to rotate, and the B-axis component needs to bear larger overturning moment. The function of the supporting tailstock is to ensure the rigidity in the rotation process of the swing arm and the machining precision of the cradle turntable.
At present, the chinese patent with publication number CN217539620U provides a hermetic seal structure, a brake structure and a high-speed turntable, wherein the brake structure is formed by injecting hydraulic oil with a certain pressure, so that the middle part of a brake sheet generates a rotating shaft of the turning turntable to be folded, the clamping function is realized, the whole of the brake structure is compact, the brake moment is large, the fixation of a larger tool can be realized, and the brake structure with different sizes can be designed according to the application diameter.
Although the turntable in the technical scheme can realize the braking function through hydraulic oil, in the rotating process of the turntable, the bearing also needs a certain lubrication, otherwise, the bearing rotates for too long, and larger heat is easily generated between the bearing and the shell.
Disclosure of Invention
In view of the above, the present utility model aims to provide a direct-drive single-arm five-shaft, which also lubricates a rotor and a bearing in the process of braking a turntable by hydraulic oil.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the direct-drive single-arm five-shaft comprises a B-shaft assembly and a C-shaft assembly, wherein the B-shaft assembly comprises a sealing disc facing one side of the C-shaft assembly, and the C-shaft assembly comprises a shell which is rotationally connected with the upper side of the sealing disc; a containing cavity is formed in the shell along the height direction of the shell, a bearing is arranged in the containing cavity, and a rotor and a stator are sequentially arranged outside the lower side of the bearing; an oil inlet cavity is formed in the B shaft assembly, an oil storage cavity is formed in one side, facing the sealing disc, of the shell, the oil storage cavity is communicated with the oil inlet cavity, and a first oil supply channel and a second oil supply channel are formed in one side, facing the bearing, of the oil storage cavity;
the upper side of the bearing is provided with a hydraulic component, hydraulic oil in the first oil supply channel is used for providing power for the hydraulic component, and the hydraulic component is used for controlling the starting and stopping of the rotation of the bearing and providing hydraulic oil in the first oil supply channel and the second oil supply channel for lubricating the bearing and the rotor.
Through the technical scheme, hydraulic oil reaches the oil storage cavity after entering from the oil inlet cavity, and then is supplied to the hydraulic component through the first oil supply channel, so that the hydraulic component controls the start and stop of the bearing, and meanwhile, the hydraulic oil is supplied to the bearing and the rotor, so that lubricating oil can be obtained between the bearing and the rotor, and the rotor and the bearing rotate more smoothly.
Preferably, the upper end of the shell is provided with an upper cover, the upper cover is detachably connected with the shell, a third oil supply channel is arranged on the shell and is communicated with the first oil supply channel, and the third oil supply channel is used for providing hydraulic oil for the hydraulic assembly.
Through the technical scheme, the second oil supply channel conveys hydraulic oil to the third oil supply channel, and then the third oil supply channel conveys the hydraulic oil to the hydraulic assembly.
Preferably, the hydraulic component comprises a regression disc, a piston, a brake pad, a first fixed brake pad and a second fixed brake pad; the upper side of the bearing is provided with a fixed ring, an outer ring of the fixed ring is fixedly connected with the shell, and an inner ring of the fixed ring is fixedly connected with the bearing;
the fixed ring is characterized in that a first fixed brake sheet, a brake sheet and a second fixed brake sheet are sequentially and fixedly connected to the upper side of the inner ring of the fixed ring, one end, away from the bearing, of the brake sheet is connected with the shell, a piston is arranged at the upper end of the brake sheet, and a regression disc is arranged at the upper end of the piston.
Through the technical scheme, the hydraulic oil gives pressure to the regression disc, the regression disc pushes the piston to move downwards, and then the piston presses the brake pad downwards, so that the brake pad can stop the bearing from rotating.
Preferably, the regression disc comprises a plurality of fixed discs distributed at intervals along the circumferential direction of the regression disc, and the fixed discs are respectively and sequentially fixedly connected with the piston and the upper cover.
The brake block comprises a plurality of fixing plates which are distributed at intervals along the circumferential direction of the brake block, and the fixing plates are respectively and sequentially fixedly connected with the piston and the shell.
Through the technical scheme, gaps are formed among the fixed discs, hydraulic oil can flow to the rotor and the stator through the gaps, and the brake pad is convenient to recover and stop applying pressure to the bearing.
Preferably, the oil storage rings are respectively arranged on the upper side and the lower side of the fixed ring, the oil storage rings are provided with through holes along the vertical direction of the oil storage rings, and the oil storage rings are arranged on the positive direction of the rotor.
Through the technical scheme, hydraulic oil firstly flows into the oil storage ring at the upper side of the fixed ring, then enters the second through holes, flows into the oil storage ring below, and then flows into the space between the stator and the rotor.
Preferably, the first oil supply passage includes a first lateral passage and a first vertical passage; the third oil supply channel comprises a second transverse channel, a second vertical channel and a third vertical channel, one end of the first transverse channel is communicated with the oil storage cavity, the other end of the first transverse channel is communicated with one end of the first vertical channel, the other end of the first vertical channel is communicated with one end of the second vertical channel, the other end of the second vertical channel is communicated with the second transverse channel, and the third vertical channel is communicated with the second transverse channel.
Through above-mentioned technical scheme, hydraulic oil loops through first horizontal passageway, first vertical passageway, second horizontal passageway and third vertical passageway, then gives hydraulic assembly with the pressure transfer of hydraulic oil.
Preferably, a one-way valve is arranged between the oil storage cavity and the first oil supply channel, an oil outlet pipeline is arranged on one side, far away from the oil storage cavity, of the second oil supply channel, and the oil outlet pipeline is arranged at the lower end of the shell.
Through the technical scheme, the hydraulic oil flowing through the hydraulic assembly is prevented from flowing back into the oil storage cavity by the arrangement of the one-way valve, and the oil outlet pipeline can recycle part of the oil used after each time of braking for cyclic utilization.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
FIG. 2 is a cross-sectional view of an embodiment;
FIG. 3 is a schematic view of the internal structure of an embodiment;
FIG. 4 is an enlarged view of structure A;
FIG. 5 is a schematic diagram of a regression disc;
fig. 6 is an enlarged view of the B structure.
Reference numerals: 1. a B-axis assembly; 11. a sealing plate; 12. an oil inlet cavity; 2. a C-axis assembly; 21. a housing; 22. a receiving chamber; 23. an oil storage chamber; 24. a first oil supply passage; 241. a first transverse channel; 242. a first vertical channel; 25. a second oil supply pipe; 3. a bearing; 4. a rotor; 5. a stator; 6. an upper cover; 61. a third oil supply passage; 611. a second transverse channel; 612. a second vertical channel; 613. a third vertical channel; 7. a fixing ring; 71. returning the disc; 711. fixing the disc; 72. a piston; 73. a brake pad; 74. a first fixed brake piece; 75. a second fixed brake piece; 76. oil storage ring; 77. a through hole; 8. a one-way valve; 9. and an oil outlet channel.
Detailed Description
The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.
Referring to fig. 1, a direct-drive single-arm five-shaft comprises a B-shaft assembly 1 and a C-shaft assembly 2, wherein the B-shaft assembly 1 comprises a sealing disc 11 facing one side of the C-shaft assembly 2, the C-shaft assembly 2 comprises a shell 21, and the shell 21 is rotatably connected with the upper side of the sealing disc 11; a containing cavity 22 is arranged in the shell 21 along the height direction, a bearing 3 is arranged in the containing cavity 22, and a rotor 4 and a stator 5 are sequentially arranged outside the lower side of the bearing 3; the upper end of the bearing 3 is connected with a turntable, and when the rotor 4 rotates, the bearing 3 is driven to rotate, and then the bearing 3 drives the turntable to rotate.
Referring to fig. 2, an oil inlet cavity 12 is arranged in the b-shaft assembly 1, an oil storage cavity 23 is arranged on one side of the shell 21 facing the sealing disc 11, the oil storage cavity 23 is communicated with the oil inlet cavity 12, and a first oil supply channel 24 and a second oil supply channel are arranged on one side of the oil storage cavity 23 facing the bearing 3; the upper side of the bearing 3 is provided with a hydraulic component, hydraulic oil in the first oil supply channel 24 is used for providing power for the hydraulic component, and the hydraulic component is used for controlling the starting and stopping of the rotation of the bearing 3 and providing hydraulic oil in the first oil supply channel 24 and the second oil supply channel for lubricating the stator 5 and the rotor 4. The hydraulic oil enters from the oil inlet cavity 12 and reaches the oil storage cavity 23, and then is supplied to the hydraulic component through the first oil supply channel 24, so that the hydraulic component controls the starting and stopping of the bearing 3, and meanwhile, the hydraulic component plays a role of a power source to supply the hydraulic oil to the bearing 3 and the rotor 4, so that oil can be lubricated between the bearing 3 and the rotor 4, and the rotor 4 and the bearing 3 can rotate more smoothly.
Specifically, referring to fig. 3, an upper cover 6 is provided at an upper end of the housing 21, the upper cover 6 is detachably connected to the housing 21, a third oil supply passage 61 is provided on the housing 21, the third oil supply passage 61 communicates with the first oil supply passage 24, and the third oil supply passage 61 is used for supplying hydraulic oil to the hydraulic assembly. The second oil supply passage conveys the hydraulic oil to the third oil supply passage 61, and then the third oil supply passage 61 conveys the hydraulic oil to the hydraulic assembly.
Referring to fig. 4, the hydraulic assembly includes a return disc 71, a piston 72, a brake pad 73, a first fixed brake pad 74, and a second fixed brake pad 75; the upper side of the bearing 3 is provided with a fixed ring 7, an outer ring of the fixed ring 7 is fixedly connected with the shell 21, and an inner ring of the fixed ring 7 is fixedly connected with the bearing 3; the upper side of the inner ring of the fixed ring 7 is sequentially and fixedly connected with a first fixed brake pad 74, a brake pad 73 and a second fixed brake pad 75, one end, away from the bearing 3, of the brake pad 73 is connected with the shell 21, a piston 72 is arranged at the upper end of the brake pad 73, and a regression disc 71 is arranged at the upper end of the piston 72. The regression disc 71 is connected with the piston 72 and the upper cover 6, and the brake block 73 is fixed between the first fixed brake block 74 and the second fixed brake block 75, so that the structural strength of the brake block 73 can be increased, the brake block 73 can better brake the fixed ring 7 connected with the bearing 3, and the rotation of the bearing 3 is stopped. The hydraulic oil applies pressure to the return disc 71, the return disc 71 pushes the piston 72 to move downwards, and then the piston 72 presses the brake pad 73, so that the brake pad 73 stops the bearing 3 from rotating.
Referring to fig. 5, the return disc 71 includes a plurality of fixing discs 711 spaced apart along the circumference thereof, and the plurality of fixing discs 711 are fixedly connected to the piston 72 and the upper cover 6, respectively, in sequence. The brake pad 73 includes a plurality of fixing plates spaced apart along the circumference thereof, and the plurality of fixing plates are fixedly connected with the piston 72 and the housing 21, respectively, in sequence. The fixing discs 711 and fixing plates have gaps therebetween, so that hydraulic oil can flow to the rotor 4 and the fixed bearing 3 through the gaps, and the brake pad 73 can be restored to stop applying pressure to the bearing 3.
Referring to fig. 6, oil storage rings 76 are respectively provided at the upper and lower sides of the fixing ring 7, through holes 77 are provided in the vertical direction of the oil storage rings 76, and the oil storage rings 76 are disposed in the forward direction of the rotor 4. The fixing ring 7 is further provided with an open ring along its outer peripheral side, the open ring being provided with a through-hole along its horizontal direction, the through-hole communicating with the through-hole 77. The hydraulic oil firstly flows into the oil storage ring 76 on the upper side of the fixed ring 7, then one part of the hydraulic oil enters the through holes 77 and flows into the oil storage ring 76 below, then flows into the space between the bearing 3 and the rotor 4, and the other part of the hydraulic oil flows into the through holes 77 and flows into the through holes, and then passes through the open-loop lubrication fixed ring 7 and the shell 21 so as to reduce the friction force between the rotating shaft and the inner wall of the shell 21.
The first oil supply passage 24 includes a first lateral passage 241 and a first vertical passage 242; the third oil supply passage 61 includes a second lateral passage 611, a second vertical passage 612, and a third vertical passage 613, one end of the first lateral passage 241 communicates with the oil reservoir chamber 23, the other end of the first lateral passage 241 communicates with one end of the first vertical passage 242, the other end of the first vertical passage 242 communicates with one end of the second vertical passage 612, the other end of the second vertical passage 612 communicates with the second lateral passage 611, and the third vertical passage 613 communicates with the second lateral passage 611. The hydraulic oil sequentially passes through the first lateral passage 241, the first vertical passage 242, the second vertical passage 612, the second lateral passage 611, and the third vertical passage 613, and then the pressure of the hydraulic oil is transmitted to the hydraulic assembly.
A one-way valve 8 is arranged between the oil storage cavity 23 and the first oil supply channel 24, an oil outlet pipeline is arranged on one side of the second oil supply channel away from the oil storage cavity 23, and the oil outlet pipeline is arranged at the lower end of the shell 21. The check valve 8 prevents the hydraulic oil flowing through the hydraulic assembly from flowing back into the oil storage chamber 23, and the oil outlet pipeline can recycle a part of the oil used after each braking.
Specifically, the lubricating oil firstly enters from the oil inlet channel and then reaches the oil storage tank, then a part of the lubricating oil flows into the first oil supply channel 24, and a part of the lubricating oil flows into the second oil supply channel; the hydraulic oil flowing into the first oil supply passage 24 flows into the third oil supply passage 61, and then the oil pressure is transmitted to the hydraulic assembly, which moves toward the fixed ring 7, and flows into the oil reservoir ring 76 on the fixed ring 7 through the gap between the fixed disc 711 and the brake pad 73, and then lubricates the bearing 3 and the housing 21 and the bearing 3 and the rotating shaft through the oil reservoir ring 76, etc. When the hydraulic assembly is restored, the return disc 71 and the brake pad 73 have a force in the direction of the upper cover 6, so that the hydraulic oil in the second channel is lifted in the direction of the upper cover 6, and the hydraulic oil in the second oil supply channel can lubricate the bearing 3 and the rotor 4; therefore, the first oil supply channel 24 and the second oil supply channel can form a closed-loop oil path, so that the bearing 3 and the rotor 4, and other parts needing lubrication inside the C-shaft assembly 2 can be lubricated at any time.
Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.
Claims (7)
1. The direct-drive single-arm five-shaft comprises a B-shaft assembly (1) and a C-shaft assembly (2), wherein the B-shaft assembly (1) comprises a sealing disc (11) facing one side of the C-shaft assembly (2), the C-shaft assembly (2) comprises a shell (21), and the shell (21) is rotationally connected with the upper side of the sealing disc (11); an accommodating cavity (22) is formed in the shell (21) along the height direction of the shell, a bearing (3) is arranged in the accommodating cavity (22), and a rotor (4) and a stator (5) are sequentially arranged outside the lower side of the bearing (3); the method is characterized in that: an oil inlet cavity (12) is formed in the B shaft assembly (1), an oil storage cavity (23) is formed in one side, facing the sealing disc (11), of the shell (21), the oil storage cavity (23) is communicated with the oil inlet cavity (12), and a first oil supply channel (24) and a second oil supply channel are formed in one side, facing the bearing (3), of the oil storage cavity (23);
the upper side of the bearing (3) is provided with a hydraulic component, hydraulic oil in the first oil supply channel (24) is used for providing power for the hydraulic component, and the hydraulic component is used for controlling the starting and stopping of the rotation of the bearing (3) and providing the hydraulic oil in the first oil supply channel (24) and the second oil supply channel for lubricating oil of the bearing (3) and the rotor (4).
2. The direct-drive single-arm five-axis machine according to claim 1, wherein: the upper end of casing (21) is provided with upper cover (6), upper cover (6) and casing (21) are dismantled and are connected, be provided with third oil feed passageway (61) on casing (21), third oil feed passageway (61) and first oil feed passageway (24) intercommunication, third oil feed passageway (61) are used for providing hydraulic oil for hydraulic assembly.
3. The direct-drive single-arm five-axis machine according to claim 2, wherein: the hydraulic assembly comprises a return disc (71), a piston (72), a brake block (73), a first fixed brake block (74) and a second fixed brake block (75); the upper side of the bearing (3) is provided with a fixed ring (7), an outer ring of the fixed ring (7) is fixedly connected with the shell (21), and an inner ring of the fixed ring (7) is fixedly connected with the bearing (3);
the inner ring upper side of fixed ring (7) fixedly connected with in proper order solid brake piece one (74), brake block (73) and solid brake piece two (75), one end that bearing (3) was kept away from to brake block (73) is connected with casing (21), just the upper end of brake block (73) is provided with piston (72), the upper end of piston (72) is provided with regression disc (71).
4. A direct drive single arm five axis as defined in claim 3, wherein: the regression disc (71) comprises a plurality of fixed discs (711) which are distributed at intervals along the circumferential direction, the fixed discs (711) are respectively and sequentially fixedly connected with the piston (72) and the upper cover (6),
the brake pad (73) comprises a plurality of fixing pieces which are distributed at intervals along the circumferential direction of the brake pad, and the fixing pieces are respectively and sequentially fixedly connected with the piston (72) and the shell (21).
5. A direct drive single arm five axis as defined in claim 3, wherein: oil storage rings (76) are respectively arranged on the upper side and the lower side of the fixed ring (7), through holes (77) are formed in the oil storage rings (76) along the vertical direction of the oil storage rings, and the oil storage rings (76) are arranged in the forward direction of the rotor (4).
6. The direct-drive single-arm five-axis machine according to claim 2, wherein: the first oil supply channel (24) comprises a first transverse channel (241) and a first vertical channel (242); the third oil supply channel (61) comprises a second transverse channel (611), a second vertical channel (612) and a third vertical channel (613), one end of the first transverse channel (241) is communicated with the oil storage cavity (23), the other end of the first transverse channel (241) is communicated with one end of the first vertical channel (242), the other end of the first vertical channel (242) is communicated with one end of the second vertical channel (612), the other end of the second vertical channel (612) is communicated with the second transverse channel (611), and the third vertical channel (613) is communicated with the second transverse channel (611).
7. The direct-drive single-arm five-axis machine according to claim 1, wherein: the oil storage cavity (23) and the first oil supply channel (24) are provided with a one-way valve (8), one side of the second oil supply channel away from the oil storage cavity (23) is provided with an oil outlet pipeline, and the oil outlet pipeline is arranged at the lower end of the shell (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321653122.1U CN220347920U (en) | 2023-06-27 | 2023-06-27 | Direct-drive single-arm five-axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321653122.1U CN220347920U (en) | 2023-06-27 | 2023-06-27 | Direct-drive single-arm five-axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220347920U true CN220347920U (en) | 2024-01-16 |
Family
ID=89505954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321653122.1U Active CN220347920U (en) | 2023-06-27 | 2023-06-27 | Direct-drive single-arm five-axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220347920U (en) |
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2023
- 2023-06-27 CN CN202321653122.1U patent/CN220347920U/en active Active
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