High-load-resistant multifunctional rotary joint device of robot

Abstract

The utility model discloses a high-load-resistant robot multifunctional rotary joint device which comprises a main body top shell, a first motor bin is fixedly connected to the side face of the main body top shell, a first rotating shaft is arranged on the side, away from the main body top shell, of the first motor bin, and a connecting shaft is fixedly connected to the surface of the first rotating shaft. A second motor bin is fixedly connected to the upper surface of the connecting shaft, a second rotating shaft is arranged on the side, away from the connecting shaft, of the second motor bin, a robot gripper is fixedly connected to the surface of the second rotating shaft, and a cavity is formed in the first motor bin. Through cooperation of the annular oil storage bin, the circulation channel, the first annular groove, the second annular groove, the first rotating ring, the second rotating ring, the first ball body, the second ball body, the through opening and other structures, lubricating oil is added, friction force between the structures is further reduced, the service life of the device is prolonged, the smoothness of a joint during rotation is improved, and the service life of the device is prolonged. And the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to robot rotary joint, concretely is robot multifunctional rotary joint device of high load resistance. BACKGROUND

[0002] Robot gripper joint rotation mechanism is the connecting assembly between robot gripper and robot main body, and the robot gripper can be operated in multi-angle rotation on the robot main body by using the robot gripper joint rotation mechanism.

[0003] Through the consultation document, the existing patent (publication number: CN209868647U) discloses a kind of robot gripper joint rotation mechanism, including first connecting rod, rotating sleeve and second connecting rod, the first connecting rod and second connecting rod are fixed by rotating sleeve butt joint, the first connecting rod and second connecting rod are all cylindrical hollow structure, the upper inner side of rotating sleeve is fixedly installed with sealing ring, the inner surface of one side of rotating sleeve is fixedly sleeved with limit bolt, the outer surface of the other side of rotating sleeve is fixedly installed with first rotary ring.

[0004] Although the above prior art can effectively reduce the wear of equipment, but in the actual use process, since the rotating ring between it is not set lubricating structure, therefore when internal ball is used for a long time, wear will be produced, and then the generated friction force cannot be effectively reduced, the rotation of joint is smooth, practicality drops, service life reduces. UTILITY MODEL CONTENT

[0005] To solve the defect that the connecting part is not convenient to lubricate in the prior art, the utility model provides robot multifunctional rotary joint device of high load resistance.

[0006] In order to solve the above technical problem, the utility model provides the following technical scheme:

[0007] The utility model discloses a robot multifunctional rotary joint device of high load resistance, including main part top shell, the side fixed connection of main part top shell has first motor bin, the side away from main part top shell of first motor bin is provided with first pivot, the surface fixed connection of first pivot has connecting shaft, the upper surface fixed connection of connecting shaft has second motor bin, the side away from connecting shaft of second motor bin is provided with second pivot, the surface fixed connection of second pivot has robot gripper, the inside of first motor bin is equipped with cavity, the inside fixed connection of cavity has motor, the side surface fixed cover of first motor bin faces first pivot and is provided with fixed ring, the side surface of first pivot faces first motor bin and is provided with first ring groove, the inside sliding connection of first ring groove has first rotary ring, first rotary ring and fixed ring fixed connection, the inner wall of first ring groove is equipped with second ring groove, the inside sliding connection of second ring groove has second rotary ring, second rotary ring and first rotary ring fixed connection, the surface of second rotary ring is equipped with oil seepage, the surface of first rotary ring is equipped with first ball groove, the inner wall of first ball groove is equipped with through -hole.

[0008] As a preferred technical scheme of the utility model, the inside movable cover of the first ball groove has a first ball, and the first ball and the inner wall of the first ring groove are in contact.

[0009] As a preferred technical scheme of the utility model, the surface of the second rotary ring is provided with a second ball groove, the inside movable cover of the second ball groove has a second ball, and the second ball and the inner wall of the second ring groove are in contact.

[0010] As a preferred technical scheme of the utility model, the first rotary ring and the first ring groove are provided with a sealing ring.

[0011] As a preferred technical scheme of the utility model, the inside of the first pivot is provided with an annular oil storage bin, and the upper side of the annular oil storage bin is provided with an oil injection port.

[0012] As a preferred technical scheme of the utility model, the inside of the first pivot is provided with a flow-through channel, and the annular oil storage bin and the second ring groove are connected through the flow-through channel.

[0013] As a preferred technical scheme of the utility model, the output shaft of the motor rotates and penetrates out of the inside of the first motor bin and is fixedly connected with the first pivot.

[0014] As a preferred technical scheme of the utility model, the inside of the cavity is fixedly provided with a bearing, and the inner ring of the bearing is fixedly provided on the outer surface of the motor output shaft.

[0015] The utility model discloses a beneficial effect is: this kind of high load resistance robot multifunctional rotary joint device, through the cooperation of annular oil storage depot, flow passageway, first ring groove, second ring groove, first rotary ring, second rotary ring, first sphere, second sphere, the structure such as mouth, realized the addition of lubricating oil, and further reduce the friction between structures, prolong the service life of device, improve the fluency when rotating at joint, and the practicality is higher. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the present utility model, and constitute a part of the specification, and are used together with embodiments of the present utility model to explain the present utility model, and do not constitute the limitation to the present utility model.In the drawings:

[0017] Figure 1 It is the structural schematic diagram of the utility model high load resistance robot multifunctional rotary joint device;

[0018] Figure 2 It is the sectional structure schematic diagram of the utility model first motor storehouse;

[0019] Figure 3 It is Figure 2 The enlarged schematic view of A in the middle;

[0020] Figure 4 It is the sectional structure schematic diagram of the utility model first rotation axis;

[0021] Figure 5 It is the structural schematic diagram of the utility model fixed ring;

[0022] Figure 6 It is Figure 5 The enlarged view of B in the middle.

[0023] In the drawing: 1, main body top shell;2, first motor storehouse;201, cavity;3, first rotation axis;4, connecting shaft;5, second motor storehouse;6, second rotation axis;7, robot gripper;8, motor;9, bearing;10, fixed ring;11, first ring groove;12, first rotary ring;13, second ring groove;14, second rotary ring;15, oil infiltration mouth;16, second ball groove;17, second sphere;18, first ball groove;19, first sphere;20, mouth;21, sealing ring;22, flow passageway;23, oil injection mouth;24, annular oil storage depot. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present utility model are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described here are only used to explain and illustrate the present utility model, and do not limit the present utility model.

[0025] Embodiment: as Figures 1-6As shown, the utility model anti high load's robot multifunctional rotary joint device, including main body top shell 1, main body top shell 1 is anti high load's robot component, it is prior art device, because not main structure, therefore do not recite it again, the side surface fixed connection of main body top shell 1 has first motor bin 2, first motor bin 2 is provided with first rotating shaft 3 away from the side of main body top shell 1, the surface fixed connection of first rotating shaft 3 has connecting shaft 4, the upper surface fixed connection of connecting shaft 4 has second motor bin 5, the structure inside first motor bin 2 and second motor bin 5 is same, the side away from connecting shaft 4 of second motor bin 5 is provided with second rotating shaft 6, the structure inside first rotating shaft 3 and second rotating shaft 6 is same, the surface fixed connection of second rotating shaft 6 has robot gripper 7, the inside of first motor bin 2 is provided with cavity 201, the inside fixed connection of cavity 201 has motor 8, the side surface fixed sleeve of first motor bin 2 towards first rotating shaft 3 has fixed ring 10, the side surface of first rotating shaft 3 towards first motor bin 2 is provided with first ring groove 11, first ring groove 11 is slidably connected with first rotating ring 12 in the inside, first rotating ring 12 and fixed ring 10 are fixedly connected, the inner wall of first ring groove 11 is provided with second ring groove 13, second rotating ring 14 is slidably connected in the inside of second ring groove 13, second rotating ring 14 and first rotating ring 12 are fixedly connected, the surface of second rotating ring 14 is provided with oil infiltration 15, the surface of first rotating ring 12 is provided with first ball groove 18, the inner wall of first ball groove 18 is provided with through hole 20.

[0026] Wherein, first rotating shaft 3, connecting shaft 4, second rotating shaft 6 and robot gripper 7 are all high-strength materials, thereby improving the load capacity of the device itself.

[0027] Wherein, the inside of first ball groove 18 movably sleeve has first ball 19, and the inner wall of first ball groove 11 is contacted with first ball 19.

[0028] Wherein, the surface of second rotating ring 14 is provided with second ball groove 16, the inside of second ball groove 16 movably sleeve has second ball 17, and the inner wall of second ball groove 13 is adhered with second ball 17.

[0029] Wherein, the first rotating ring 12 and the first ring groove 11 are provided with a sealing ring 21.

[0030] Wherein, the inside of first rotating shaft 3 is provided with annular oil storage bin 24, and the upper side of annular oil storage bin 24 is provided with oil inlet 23.

[0031] Wherein, the inside of first rotating shaft 3 is provided with flow channel 22, and the annular oil storage bin 24 and the second ring groove 13 are communicated through the flow channel 22.

[0032] Wherein, the output shaft of motor 8 rotates and penetrates out of the inside of first motor bin 2 and is fixedly connected with first rotating shaft 3.

[0033] The inner part of the cavity 201 is provided with a bearing 9, and the inner ring of the bearing 9 is fixedly sleeved on the outer surface of the output shaft of the motor 8.

[0034] When the angle of the mechanical arm needs to be adjusted, the two motors 8 are started, and the rotation of the output shafts of the two motors 8 can drive the first rotating shaft 3 or the second rotating shaft 6 to rotate, respectively. When the first rotating shaft 3 rotates, the first rotating ring 12 and the second rotating ring 14 are fixed because the fixed ring 10 is in a fixed state. Therefore, when the first rotating shaft 3 or the second rotating shaft 6 rotates, the first ball 19 rotates along the inner wall of the first ring groove 11, thereby reducing the friction between the first rotating ring 12 and the first ring groove 11. At the same time, the second ball 17 also slides along the inner wall of the second ring groove 13, thereby reducing the friction between the second rotating ring 14 and the second ring groove 13.

[0035] When it is necessary to add lubricating oil between the ball and the ring groove to reduce the friction, the oil inlet 23 is opened, and then the lubricating oil is added to the inside of the annular oil storage bin 24 by pressurization. Subsequently, the lubricating oil enters the inside of the second ring groove 13 through the flow-through channel 22. At this time, the second ball 17, the second ring groove 16, and the second ring groove 13 can be lubricated. At the same time, the lubricating oil also enters the upper side of the first ring groove 11 through the oil infiltration opening 15 on the surface of the second rotating ring 14. Subsequently, the lubricating oil enters between the first ball groove 18 and the first ball 19. The lubricating oil in the upper first ball groove 18 enters the inside of the lower first ball groove 18 through the through hole 20. Finally, the first ring groove 11, the first rotating ring 12, the first ball 19, and the first ball groove 18 are lubricated. At the same time, the sealing ring 21 seals the first ring groove 11.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A robot multi-functional rotary joint device against high load, comprising a main body top cover (1), characterized in that, The side surface of the main body top shell (1) is fixedly connected with a first motor compartment (2), a first rotating shaft (3) is arranged on the side of the first motor compartment (2) away from the main body top shell (1), a connecting shaft (4) is fixedly connected to the surface of the first rotating shaft (3), a second motor compartment (5) is fixedly connected to the upper surface of the connecting shaft (4), a second rotating shaft (6) is arranged on the side of the second motor compartment (5) away from the connecting shaft (4), a robot gripper (7) is fixedly connected to the surface of the second rotating shaft (6), a cavity (201) is arranged in the first motor compartment (2), a motor (8) is fixedly connected in the cavity (201), a fixed ring (10) is fixedly sleeved on the side surface of the first motor compartment (2) facing the first rotating shaft (3), a first ring groove (11) is arranged on the side surface of the first rotating shaft (3) facing the first motor compartment (2), a first rotating ring (12) is slidably connected in the first ring groove (11), the first rotating ring (12) and the fixed ring (10) are fixedly connected, a second ring groove (13) is arranged on the inner wall of the first ring groove (11), a second rotating ring (14) is slidably connected in the second ring groove (13), the second rotating ring (14) and the first rotating ring (12) are fixedly connected, an oil infiltration opening (15) is arranged on the surface of the second rotating ring (14), a first ball groove (18) is arranged on the surface of the first rotating ring (12), and a through opening (20) is arranged on the inner wall of the first ball groove (18).

2. The robot multi-functional revolute joint device resistant to high load according to claim 1, characterized by, A first ball (19) is movably sleeved in the first ball groove (18), and the first ball (19) is in contact with the inner wall of the first ring groove (11).

3. The robot multi-functional revolute joint device resistant to high load according to claim 1, characterized by, A second ball groove (16) is arranged on the surface of the second rotating ring (14), a second ball (17) is movably sleeved in the second ball groove (16), and the second ball (17) is in contact with the inner wall of the second ring groove (13).

4. The robot multi-functional revolute joint device resistant to high load according to claim 2, characterized by, A sealing ring (21) is arranged between the first rotating ring (12) and the first ring groove (11).

5. The robot multi-functional revolute joint device resistant to high load according to claim 1, characterized by, An annular oil storage compartment (24) is arranged in the first rotating shaft (3), and an oil injection opening (23) is arranged on the upper side of the annular oil storage compartment (24).

6. The robot multi-functional revolute joint device resistant to high load according to claim 5, characterized by, A flow-through channel (22) is arranged in the first rotating shaft (3), and the annular oil storage compartment (24) and the second ring groove (13) are connected in communication through the flow-through channel (22).

7. The robot multi-functional revolute joint device resistant to high load according to claim 6, characterized by, The output shaft of the motor (8) penetrates into the first motor compartment (2) and is fixedly connected with the first rotating shaft (3).

8. The robot multi-functional revolute joint device resistant to high load according to claim 7, characterized by, A bearing (9) is fixedly sleeved in the cavity (201), and the inner ring of the bearing (9) is fixedly sleeved on the outer surface of the output shaft of the motor (8).

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