Industrial robot mechanical arm

Through innovative designs of lubrication, adjustment, and clamping components, the problems of uneven lubricant distribution, angle adjustment flexibility, and adaptive clamping force have been solved, thereby improving the lubrication effect and clamping stability of the industrial robot arm.

CN224169854UActive Publication Date: 2026-04-28SHENYANG RUIHONG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG RUIHONG TECHNOLOGY CO LTD
Filing Date
2025-06-03
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing industrial robot arms suffer from problems such as uneven lubricant distribution, limited angle adjustment flexibility, and difficulty in adaptively adjusting clamping force and angle.

Method used

The lubrication component uses a combination of driving and driven gears to ensure uniform distribution of lubricating oil, the adjustment component uses a cylinder and a rotating arm to achieve precise angle adjustment, and the clamping component uses a precision gear transmission system to ensure precise control of clamping force and angle.

Benefits of technology

It achieves effective distribution of lubricating oil at each joint of the robotic arm, improving the flexibility and versatility of the robotic arm, ensuring the stability and adaptability of the gripping process, and adapting to items of different sizes and shapes.

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Abstract

The utility model discloses an industrial robot mechanical arm which comprises a bottom plate, a lubricating assembly is arranged on the bottom plate, the lubricating assembly comprises a fixed disc, a fixed arm, a driven gear, a first motor and a driving gear, the fixed disc is fixedly installed on the bottom plate, the fixed arm is rotationally connected to the fixed disc, and the driven gear is arranged on the fixed arm. The driven gear is connected to one end of the bottom of the fixed arm, the first motor is installed on the bottom plate, the driving gear is connected to the output end of the first motor, the driving gear is in meshed connection with the driven gear, an adjusting assembly is arranged on the fixed arm, and the adjusting assembly comprises an air cylinder, a rotating arm and an adjusting arm. The air cylinder is installed on the fixed arm in a hinged mode, the rotating arm and the adjusting arm are rotationally connected to the fixed arm, and therefore the technical problem that in the background technology, effective diffusion and distribution are difficult to achieve when existing lubricating oil lubricates a mechanical arm is solved.
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Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, and more specifically, to an industrial robot robotic arm. Background Technology

[0002] In existing technologies, a common industrial robot arm structure relies on the rotational movements of various joints to perform tasks such as grasping, handling, and manipulating objects in space. To ensure good motion performance and service life of the robotic arm during long-term, high-load operation, a certain amount of lubricating oil is usually injected into the mechanical joints. Through mechanical friction during joint movement, the lubricating oil is gradually and evenly distributed in the joint area, thereby reducing wear, reducing resistance, and extending service life. However, it is difficult to achieve effective diffusion and distribution of lubricating oil.

[0003] In addition, the flexibility of angle adjustment is limited in the existing robotic arm structure. Traditional robotic arms mostly adopt a fixed structure or a control method based on a preset path, which makes it difficult to quickly and accurately adjust the posture or angle of the robotic arm in real time under certain specific working conditions. This design limits the applicability of the robotic arm.

[0004] Furthermore, in the process of clamping the target object, the end effector used by the existing robotic arm is mostly simple in structure and single in control method. The clamping force and clamping angle often need to be manually adjusted or rely on preset programs. This makes it difficult for the existing device to adaptively adjust the clamping method according to the characteristics of the object when facing objects of different sizes, materials or shapes, which easily leads to unstable clamping and slippage. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides an industrial robot arm to solve the technical problem mentioned in the background art that existing lubricating oil is difficult to achieve effective diffusion and distribution when lubricating the robot arm.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an industrial robot arm, including a base plate, on which a lubrication assembly is provided. The lubrication assembly includes a fixed disk, a fixed arm, a driven gear, a first motor, and a driving gear. The fixed disk is fixedly mounted on the base plate, and the fixed arm is rotatably connected to the fixed disk. The driven gear is connected to one bottom end of the fixed arm. The first motor is mounted on the base plate, and the driving gear is connected to the output end of the first motor. The driving gear meshes with the driven gear. An adjustment assembly is provided on the fixed arm, and the adjustment assembly includes a cylinder, a rotating arm, and an adjusting arm. The cylinder is hinged to the fixed arm, and the rotating arm and the adjusting arm are rotatably connected to the fixed arm.

[0009] The present invention is further configured such that a first lubricating gear and a second lubricating gear are rotatably connected on the base plate, the first lubricating gear and the second lubricating gear are meshed together, the second lubricating gear is meshed with a driven gear, an oil bottle is mounted on the fixed plate, a mounting base is mounted on the oil bottle, a second motor is mounted on the mounting base, and a rotating wheel is connected to the output end of the second motor. The cooperation of each component promotes the completion of the rotation process of the rotating wheel.

[0010] The present invention is further configured such that a rotating rod is rotatably connected to the rotating wheel, a moving block is slidably connected to the mounting base, the moving block is rotatably connected to one end of the rotating rod, a connecting rod is connected to the moving block, a sealing plug is connected to the connecting rod, an oil inlet pipe is installed on the oil bottle, an oil outlet pipe is connected to the bottom of the oil bottle, and the oil outlet pipe is adapted to the sealing plug. The cooperation of each component facilitates the completion of the movement process of the sealing plug.

[0011] The present invention is further configured such that the output end of the cylinder is hinged to one end of the rotating arm, and a hinge arm is hinged to one end of the adjusting arm, thereby facilitating the rotation process of the rotating arm.

[0012] The present invention is further configured such that a mounting plate is installed at the bottom of the articulated arm, thereby facilitating the clamping process of the item.

[0013] The present invention is further configured such that a clamping assembly is provided on the mounting plate, the clamping assembly including a third motor, an operating plate and a first half gear, the third motor is mounted on the bottom of the mounting plate, the operating plate is connected to one end of the third motor, and the first half gear is connected to the output end of the third motor. The cooperation of each component facilitates the completion of the rotation process of the first half gear.

[0014] The present invention is further configured such that a third half gear is rotatably connected to the operation panel, and there are two third half gears. A clamping block is installed at one end of the third half gear, and the cooperation of each component promotes the completion of the rotation process of the third half gear.

[0015] The present invention is further configured such that one end of one of the third half gears is connected to a second half gear, the second half gear meshing with the first half gear, thereby facilitating the completion of the use of the clamping block by using the second half gear.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an industrial robot arm with the following features:

[0018] Beneficial effects:

[0019] 1. The lubrication components, through a series of precise designs, solve the problem of uneven lubrication in traditional robotic arms. Especially for the bottom rotating joints and high-load areas, the cooperation of the drive gear and driven gear can ensure the effective distribution of lubricating oil at each joint of the robotic arm. In particular, at the bottom joints with high-frequency rotation, the lubrication blind spots are reduced by precisely controlling the outflow position and flow rate of the lubricating oil.

[0020] 2. The adjustment component, through the coordinated design of cylinders and rotating arms, greatly enhances the flexibility and adaptability of the robotic arm during operation. When the angle of the robotic arm needs to be adjusted, the cylinders provide precise mechanical support, enabling the rotating arm to rotate smoothly on the fixed arm, thereby achieving fine adjustment of the angles of each joint of the robotic arm. This adjustment mechanism improves the versatility of the robot.

[0021] 3. The clamping assembly, through a precision gear transmission system combined with electric drive, ensures that the robotic arm can accurately and smoothly clamp items. The cooperation between the control panel, the half-gear system and the clamping block ensures precise control of the clamping force during the clamping process, enabling the robotic arm to automatically adjust the clamping force according to the different sizes and shapes of the items, avoiding situations where the items are not clamped securely or are damaged. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an industrial robot arm according to the present invention;

[0023] Figure 2 This is a schematic diagram of the lubrication component in this utility model;

[0024] Figure 3 This is a partial structural diagram of the lubrication component in this utility model;

[0025] Figure 4 This is a cross-sectional view of the lubrication component in this utility model;

[0026] Figure 5 This is a schematic diagram of the clamping component in this utility model;

[0027] Figure 6 This is a side view of the clamping component in this utility model.

[0028] In the diagram: 1. Base plate; 2. Fixed plate; 3. Fixed arm; 4. Driven gear; 5. First motor; 6. Drive gear; 7. Cylinder; 8. Rotating arm; 9. Adjusting arm; 10. First lubrication gear; 11. Second lubrication gear; 12. Oil bottle; 13. Mounting base; 14. Second motor; 15. Rotating wheel; 16. Rotating rod; 17. Moving block; 18. Connecting rod; 19. Sealing plug; 20. Oil inlet pipe; 21. Oil outlet pipe; 22. Hinge arm; 23. Mounting plate; 24. Third motor; 25. Operating plate; 26. First half gear; 27. Third half gear; 28. Clamping block; 29. ​​Second half gear. Detailed Implementation

[0029] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] Please see Figures 1-6An industrial robot arm includes a base plate 1, on which a lubrication assembly is provided. The lubrication assembly includes a fixed disk 2, a fixed arm 3, a driven gear 4, a first motor 5, and a driving gear 6. The fixed disk 2 is fixedly mounted on the base plate 1, and the fixed arm 3 is rotatably connected to the fixed disk 2. The driven gear 4 is connected to one bottom end of the fixed arm 3. The first motor 5 is mounted on the base plate 1, and the driving gear 6 is connected to the output end of the first motor 5. The driving gear 6 meshes with the driven gear 4. An adjustment assembly is provided on the fixed arm 3, which includes a cylinder 7, a rotating arm 8, and an adjusting arm 9. The cylinder 7 is hinged to the fixed arm 3, and the rotating arm 8 and the adjusting arm 9 are rotatably connected to the fixed arm 3.

[0033] A first lubrication gear 10 and a second lubrication gear 11 are rotatably connected on the base plate 1. The first lubrication gear 10 and the second lubrication gear 11 are meshed together. The second lubrication gear 11 is meshed with the driven gear 4. An oil bottle 12 is installed on the fixed plate 2. A mounting base 13 is installed on the oil bottle 12. A second motor 14 is installed on the mounting base 13. A rotating wheel 15 is connected to the output end of the second motor 14.

[0034] A rotating rod 16 is rotatably connected to the rotating wheel 15, and a moving block 17 is slidably connected to the mounting base 13. The moving block 17 is rotatably connected to one end of the rotating rod 16. A connecting rod 18 is connected to the moving block 17, and a sealing plug 19 is connected to the connecting rod 18. An oil inlet pipe 20 is installed on the oil bottle 12, and an oil outlet pipe 21 is connected to the bottom of the oil bottle 12. The oil outlet pipe 21 is adapted to the sealing plug 19.

[0035] The output end of the cylinder 7 is hinged to one end of the rotating arm 8, and the adjusting arm 9 is hinged to one end with a hinge arm 22.

[0036] A mounting plate 23 is installed at the bottom of the hinge arm 22.

[0037] In this embodiment, during use, the first motor 5 is started, causing the output end drive gear 6 to rotate. During this rotation, the drive gear 4 meshes with it and rotates, causing the connected rotating arm 8 to rotate along the fixed disk 2. This facilitates the use of the robotic arm. Simultaneously, the rotation of the driven gear 4 causes the meshing second lubrication gear 11 to rotate, which in turn causes the first lubrication gear 10 to rotate. During this rotation, the second motor 14 on the mounting base 13 is started, causing the output end rotating wheel 15 to rotate. This rotation causes the rotating rod 16 rotatably connected to it to rotate, thereby activating the moving block 1 rotatably connected to the other end of the rotating rod 16. 7. The device slides along the mounting base 13, causing the connecting rod 18 connected to it to slide along the oil outlet pipe 21 on the oil bottle 12. This causes the sealing plug 19 on the oil bottle to move, allowing the sealed lubricating oil to flow out and into the meshing point of the first lubricating gear 10 and the second lubricating gear 11, thus facilitating the lubrication process. During use, when it is necessary to adjust the rotation angle of the rotating arm 8, the cylinder 7 hinged on the fixed arm 3 is activated, causing the rotating arm 8 hinged at the output end to rotate along the fixed arm 3. This allows the adjusting arm 9 hinged on one end of the rotating arm 8 to rotate along the fixed arm 3, facilitating the angle adjustment process and adjusting the mounting plate 23 to the appropriate position.

[0038] Please see Figure 5-6 As an implementation of an industrial robot arm for a clamping component: a clamping component is provided on the mounting plate 23. The clamping component includes a third motor 24, an operating plate 25 and a first half gear 26. The third motor 24 is mounted on the bottom of the mounting plate 23. The operating plate 25 is connected to one end of the third motor 24. The first half gear 26 is connected to the output end of the third motor 24.

[0039] The control panel 25 is rotatably connected to a third half gear 27. There are two third half gears 27, and a clamping block 28 is installed at one end of the third half gear 27.

[0040] One end of the third half gear 27 is connected to a second half gear 29, which meshes with the first half gear 26.

[0041] More specifically, when it is necessary to clamp the item, the third motor 24 on the mounting plate 23 is started, which drives the first half gear 26 at the output end to rotate. During the rotation, the second half gear 29 meshing with it rotates, and the third half gear 27 connected to it rotates, thereby driving the clamping block 28 on it to rotate, thus completing the clamping process of the item.

[0042] In summary, during use or operation of the overall equipment: During use, starting the first motor 5 drives the output drive gear 6 to rotate, which in turn drives the meshing driven gear 4 to rotate, thereby causing the connected rotating arm 8 to rotate along the fixed disk 2, facilitating the use of the robotic arm. Simultaneously, the rotation of the driven gear 4 drives the meshing second lubrication gear 11 to rotate, which in turn drives the first lubrication gear 10 to rotate. During this rotation, starting the second motor 14 on the mounting base 13 drives the output rotating wheel 15 to rotate, which in turn rotates the rotatably connected rotating rod 16, thereby adjusting the rotation of the other end of the rotating rod 16. The moving block 17 slides along the mounting base 13, causing the connecting rod 18 connected to it to slide along the oil outlet pipe 21 on the oil bottle 12. This causes the sealing plug 19 on the oil bottle to move, allowing the sealed lubricating oil to flow out and into the meshing point of the first lubricating gear 10 and the second lubricating gear 11, thus facilitating the lubrication process. During use, when it is necessary to adjust the rotation angle of the rotating arm 8, the cylinder 7 hinged on the fixed arm 3 is activated, causing the rotating arm 8 hinged at the output end to rotate along the fixed arm 3. This allows the adjusting arm 9 hinged on one end of the rotating arm 8 to rotate along the fixed arm 3, facilitating the angle adjustment process and adjusting the mounting plate 23 to the appropriate position.

[0043] When it is necessary to clamp the item, the third motor 24 on the mounting plate 23 is started, which drives the first half gear 26 at the output end to rotate. During the rotation, the second half gear 29 meshing with it rotates, and the third half gear 27 connected to it rotates, thereby driving the clamping block 28 on it to rotate, thus completing the clamping process of the item.

[0044] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An industrial robot arm, comprising a base plate (1), characterized in that: A lubrication assembly is provided on the base plate (1). The lubrication assembly includes a fixed disk (2), a fixed arm (3), a driven gear (4), a first motor (5), and a driving gear (6). The fixed disk (2) is fixedly installed on the base plate (1). The fixed arm (3) is rotatably connected to the fixed disk (2). The driven gear (4) is connected to one end of the bottom of the fixed arm (3). The first motor (5) is installed on the base plate (1). The driving gear (6) is connected to the output end of the first motor (5). The driving gear (6) meshes with the driven gear (4). An adjustment assembly is provided on the fixed arm (3). The adjustment assembly includes a cylinder (7), a rotating arm (8), and an adjusting arm (9). The cylinder (7) is hinged to the fixed arm (3). The rotating arm (8) and the adjusting arm (9) are rotatably connected to the fixed arm (3).

2. The industrial robot arm according to claim 1, characterized in that: A first lubrication gear (10) and a second lubrication gear (11) are rotatably connected on the base plate (1). The first lubrication gear (10) and the second lubrication gear (11) are meshed together. The second lubrication gear (11) is meshed with the driven gear (4). An oil bottle (12) is installed on the fixed plate (2). A mounting base (13) is installed on the oil bottle (12). A second motor (14) is installed on the mounting base (13). A rotating wheel (15) is connected to the output end of the second motor (14).

3. The industrial robot arm according to claim 2, characterized in that: A rotating rod (16) is rotatably connected to the rotating wheel (15), and a moving block (17) is slidably connected to the mounting base (13). The moving block (17) is rotatably connected to one end of the rotating rod (16). A connecting rod (18) is connected to the moving block (17), and a sealing plug (19) is connected to the connecting rod (18). An oil inlet pipe (20) is installed on the oil bottle (12), and an oil outlet pipe (21) is connected to the bottom of the oil bottle (12). The oil outlet pipe (21) is compatible with the sealing plug (19).

4. The industrial robot arm according to claim 3, characterized in that: The output end of the cylinder (7) is hinged to one end of the rotating arm (8), and one end of the adjusting arm (9) is hinged to a hinge arm (22).

5. An industrial robot arm according to claim 4, characterized in that: The bottom of the hinge arm (22) is provided with a mounting plate (23).

6. An industrial robot arm according to claim 5, characterized in that: The mounting plate (23) is provided with a clamping assembly, which includes a third motor (24), an operating plate (25) and a first half gear (26). The third motor (24) is mounted on the bottom of the mounting plate (23), the operating plate (25) is connected to one end of the third motor (24), and the first half gear (26) is connected to the output end of the third motor (24).

7. An industrial robot arm according to claim 6, characterized in that: The operation panel (25) is rotatably connected to a third half gear (27), and there are two third half gears (27). A clamping block (28) is installed at one end of the third half gear (27).

8. An industrial robot arm according to claim 7, characterized in that: one of them One end of the third half gear (27) is connected to a second half gear (29), and the second half gear (29) meshes with the first half gear (26).