Mechanical arm structure easy to lubricate

Abstract

The utility model provides a mechanical arm structure easy to lubricate, and relates to the technical field of mechanical arm structures, the mechanical arm structure easy to lubricate comprises a base, a mechanical arm body is fixedly installed on the upper surface of the base, a lubricating grease box is fixedly installed on the upper surface of the base, and an oil inlet pipe is fixedly installed on the side face of the lubricating grease box; according to the mechanical arm structure, the base, the mechanical arm body, the lubricating grease box, the oil inlet pipe, the sealing cover, a semicircular groove, a conveying pipe, an oil injection head, a partition plate, a driving motor, a threaded rod, a bearing, a pressing plate, a sliding rod and an oil receiving head are arranged, so that maintenance personnel can lubricate the mechanical arm structure more conveniently; maintenance personnel do not need to manually press out lubricating grease to lubricate the mechanical arm structure, the process of forceful extrusion during manual pressing operation is avoided, manpower and physical strength are greatly saved, and the maintenance personnel can lubricate the mechanical arm structure more easily and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of robotic arm structures, in particular to a robotic arm structure that is easy to lubricate. Background Art

[0002] A robotic arm structure, a mechanical device for simulating a human arm, usually consists of multiple joints and connecting components to achieve the functions of moving and performing tasks in three-dimensional space. Robotic arms are widely used in industrial automation, logistics, manufacturing and other fields and can complete various tasks such as handling, assembly, welding, painting, etc. The authorized announcement number CN214238234U discloses a robotic arm structure, including a base, a turntable is movably connected to the top of the base, motors are bolted to the front and back of the turntable, a large arm is rotatably connected to the top of the inner cavity of the turntable, a U-link is movably connected to the left side of the top of the inner cavity of the turntable, a tripod is movably connected to the top of the large arm and the U-link, a small arm is movably connected to the right side of the tripod, a horizontal base is movably connected to the side of the small arm away from the tripod, supports are bolted to the front and back of the bottom of the horizontal base, and a moving plate is slidably connected to the top of the support. Through the cooperation of a pull rod, a slide rod, a connecting plate, a positioning rod, a first spring and a second spring, the utility model facilitates the user to replace the clamping jaw of the robotic arm, avoids the cumbersome steps of replacement by the user, and improves the work efficiency of the user, solving the problem of cumbersome steps for replacing the clamping jaw of the traditional robotic arm. Although this product realizes the convenience of replacing the clamping jaw, it is not convenient to lubricate the robotic arm structure. Maintenance personnel need to manually inject grease to lubricate the robotic arm structure, which may require great strength and physical effort. Especially when frequent lubrication operations are required or when working in a high-temperature environment, the labor intensity of the operator will increase, so improvements are needed. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the technical problems raised in the above background art.

[0004] The present utility model adopts the following technical solutions: A robotic arm structure that is easy to lubricate, including a base, on the upper surface of the base is fixedly installed a robotic arm body, on the upper surface of the base is fixedly installed a grease tank, on the side surface of the grease tank is fixedly installed an oil inlet pipe, the upper end of the oil inlet pipe is threadedly connected with a sealing cover, on the outer surface of the sealing cover is provided with a semi-circular groove, on the side surface of the grease tank is fixedly connected with a delivery pipe, at one end of the delivery pipe is fixedly installed an oil injection head, inside the grease tank is fixedly installed a partition plate, on the upper surface of the grease tank is fixedly installed a driving motor, the output end of the driving motor is fixedly connected with a threaded rod, inside the grease tank is fixedly installed a bearing, inside the grease tank is slidably connected with a pressing plate, inside the grease tank is fixedly installed a sliding rod, and on the side surface of the robotic arm body is fixedly installed an oil receiving head.

[0005] Preferably, the threaded rod is threadedly connected with the pressing plate. Here, the pressing plate is moved up and down by the threaded rod, so as to push and extrude the grease inside the grease tank.

[0006] Preferably, the threaded rod is rotatably connected with the bearing. Here, the threaded rod rotates more smoothly through the bearing.

[0007] Preferably, the sliding rod is slidably connected with the pressing plate. Here, the pressing plate is more stable during the moving process through the sliding rod.

[0008] Preferably, on the side surface of the robotic arm body is fixedly installed a bottom plate, on the upper surface of the bottom plate is fixedly installed a clamping block one, symmetrically on the upper surface of the bottom plate are fixedly installed limiting rods, symmetrically on the upper surface of the bottom plate are fixedly installed tension springs, one end of the tension spring is fixedly installed with a top plate, and on the lower surface of the top plate is fixedly installed a clamping block two. Here, through the clamping blocks, the oil injection head is more stable when delivering grease through the oil receiving head, avoiding the situation of the oil injection head falling off during the grease delivery.

[0009] Preferably, the bottom plate and the top plate are connected by a tension spring. Here, through the tension spring, the clamping block one and the clamping block two can firmly clamp the oil injection head.

[0010] Preferably, the limiting rod is slidably connected with the top plate, and on the upper surface of the top plate is fixedly installed a pull ring. Here, through the limiting rod and the pull ring, it is convenient for maintenance personnel to pull the top plate, and at the same time, the top plate is more stable during the pulling process.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0012] 1. In the present utility model, by providing a base, a robotic arm body, a grease tank, an oil inlet pipe, a sealing cover, a semi-circular groove, a delivery pipe, an oil injection head, a partition plate, a driving motor, a threaded rod, a bearing, a pressing plate, a sliding rod and an oil receiving head, it is realized that maintenance personnel can lubricate the robotic arm structure more conveniently, without the need for maintenance personnel to manually pump out grease to lubricate the robotic arm structure, avoiding the process of squeezing hard during manual pressing operation, greatly saving manpower and physical strength, and making it easier and more convenient for maintenance personnel to lubricate the robotic arm structure.

[0013] 2. In the present utility model, by providing a bottom plate, a first clamping block, a limiting rod, a tension spring, a top plate, a second clamping block and a pull ring, it is realized that the oil injection head is more stable when delivering grease, avoiding the accidental detachment of the oil injection head during the process of delivering grease, and preventing the splashing and overflow of grease, thus avoiding pollution or safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a robotic arm structure that is easy to lubricate according to the present utility model;

[0015] Figure 2 is a schematic diagram of the structure at the grease tank of a robotic arm structure that is easy to lubricate according to the present utility model;

[0016] Figure 3 is a sectional view of the grease tank of a robotic arm structure that is easy to lubricate according to the present utility model;

[0017] Figure 4 is an exploded view of the bottom plate of a robotic arm structure that is easy to lubricate according to the present utility model;

[0018] Figure 5 is a robotic arm structure that is easy to lubricate according to the present utility model Figure 4 enlarged view at A in.

[0019] LEGEND DESCRIPTION:

[0020] 1. Base; 2. Robotic arm body; 3. Grease tank; 4. Oil inlet pipe; 5. Sealing cover; 6. Semi-circular groove; 7. Delivery pipe; 8. Oil injection head; 9. Partition plate; 10. Driving motor; 11. Threaded rod; 12. Bearing; 13. Pressing plate; 14. Sliding rod; 15. Oil receiving head; 16. Bottom plate; 17. First clamping block; 18. Limiting rod; 19. Tension spring; 20. Top plate; 21. Second clamping block; 22. Pull ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Embodiment 1

[0024] Please refer to Figures 1-3 , the present utility model provides a technical solution: a robotic arm structure that is easy to lubricate, including a base 1, a robotic arm body 2 is fixedly installed on the upper surface of the base 1, a grease tank 3 is fixedly installed on the upper surface of the base 1, an oil inlet pipe 4 is fixedly installed on the side surface of the grease tank 3, the upper end of the oil inlet pipe 4 is threadedly connected with a sealing cover 5, a semi-circular groove 6 is opened on the outer surface of the sealing cover 5, a conveying pipe 7 is fixedly connected to the side surface of the grease tank 3, an oil injection head 8 is fixedly installed at one end of the conveying pipe 7, a partition plate 9 is fixedly installed inside the grease tank 3, a driving motor 10 is fixedly installed on the upper surface of the grease tank 3, the output end of the driving motor 10 is fixedly connected with a threaded rod 11, a bearing 12 is fixedly installed inside the grease tank 3, a pressing plate 13 is slidably connected inside the grease tank 3, a sliding rod 14 is fixedly installed inside the grease tank 3, and an oil receiving head 15 is fixedly installed on the side surface of the robotic arm body 2.

[0025] Please refer to Figures 1-3 , the threaded rod 11 is threadedly connected with the pressing plate 13. By rotating the threaded rod 11, the pressing plate 13 moves up and down, thereby pushing and squeezing the grease inside the grease tank 3. The threaded rod 11 is rotatably connected with the bearing 12, and the rotation of the threaded rod 11 is made smoother through the bearing 12. The sliding rod 14 is slidably connected with the pressing plate 13, and the movement of the pressing plate 13 is made more stable through the sliding rod 14.

[0026] Embodiment 2

[0027] Please refer to Figures 4-5, a base plate 16 is fixedly installed on the side surface of the robotic arm body 2. A first clamping block 17 is fixedly installed on the upper surface of the base plate 16. Limiting rods 18 are symmetrically and fixedly installed on the upper surface of the base plate 16. Tensile springs 19 are symmetrically and fixedly installed on the upper surface of the base plate 16. One end of the tensile spring 19 is fixedly installed with a top plate 20. A second clamping block 21 is fixedly installed on the lower surface of the top plate 20. The base plate 16 and the top plate 20 are connected by the tensile spring 19. Through the tensile spring 19, the first clamping block 17 and the second clamping block 21 can firmly clamp the oil injection head 8. The limiting rod 18 is slidably connected with the top plate 20. A pull ring 22 is fixedly installed on the upper surface of the top plate 20. Through the limiting rod 18 and the pull ring 22, it is convenient for maintenance personnel to pull the top plate 20, and at the same time, it will be more stable during the process of pulling the top plate 20.

[0028] Working principle: When maintenance personnel need to lubricate the robotic arm body 2, first remove the delivery pipe 7 connected to the side of the grease box 3, and then connect the oil injection head 8 installed at one end of the delivery pipe 7 to the oil receiving head 15 installed on the robotic arm body 2. When connecting, first grasp the pull ring 22 and pull it upward. The pull ring 22 will drive the top plate 20 and the first clamping block 17 to move upward. At the same time, the limiting rod 18 will slide inside the top plate 20, and the tensile spring 19 will be stretched. The limiting rod 18 makes it more stable for maintenance personnel to pull the top plate 20. After connecting, release the pull ring 22. At this time, the top plate 20 will automatically reset under the action of the tensile spring 19, so that the first clamping block 17 installed at the lower end of the top plate 20 moves downward, and the first clamping block 17 will closely adhere to the surface of the oil injection head 8. The first clamping block 17 and the second clamping block 21 installed at the upper end of the base plate 16 can clamp the oil injection head 8, avoiding the accidental detachment of the oil injection head 8 during the process of delivering grease. Then start the drive motor 10. At this time, the threaded rod 11 will rotate, so that the pressing plate 13 moves downward. The pressing plate 13 will push and extrude the grease inside the grease box 3. At the same time, the sliding rod 14 will slide inside the pressing plate 13. The sliding rod 14 makes the pressing plate 13 more stable during the process of pushing and extruding downward. The extruded grease will be delivered to the inside of the robotic arm structure through the delivery pipe 7 and the oil injection head 8 to achieve lubrication, so that maintenance personnel do not need to manually pump out grease to lubricate the robotic arm structure, greatly saving manpower and physical strength, making it easier and more convenient for maintenance personnel to lubricate the robotic arm structure. When the grease inside the grease box 3 is insufficient, maintenance personnel can fill the grease inside the grease box 3 through the oil inlet pipe 4.

[0029] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mechanical arm structure that is easy to lubricate, comprising a base (1), characterized in that: A mechanical arm body (2) is fixedly mounted on the upper surface of the base (1), a grease box (3) is fixedly mounted on the upper surface of the base (1), an oil inlet pipe (4) is fixedly mounted on the side of the grease box (3), a sealing cover (5) is threadedly connected to the upper end of the oil inlet pipe (4), a semicircular groove (6) is provided on the outer surface of the sealing cover (5), a delivery pipe (7) is fixedly connected to the side of the grease box (3), an oiling head (8) is fixedly mounted on one end of the delivery pipe (7), and the grease box (3) is fixedly mounted on the upper surface of the oil inlet pipe (4). A partition plate (9) is fixedly installed inside the box (3), a driving motor (10) is fixedly installed on the upper surface of the grease box (3), a threaded rod (11) is fixedly connected to the output end of the driving motor (10), a bearing (12) is fixedly installed inside the grease box (3), a pressure plate (13) is slidably connected inside the grease box (3), a sliding rod (14) is fixedly installed inside the grease box (3), and an oil receiving head (15) is fixedly installed on the side of the robot arm body (2).

2. The easy-to-lubricate mechanical arm structure according to claim 1, characterized in that: The threaded rod (11) and the pressing plate (13) are threadedly connected.

3. The easy-to-lubricate mechanical arm structure according to claim 1, characterized in that: The threaded rod (11) is rotationally connected to the bearing (12).

4. The easy-to-lubricate mechanical arm structure according to claim 1, characterized in that: The sliding rod (14) is slidably connected to the pressing plate (13).

5. The easy-to-lubricate mechanical arm structure according to claim 1, characterized in that: A bottom plate (16) is fixedly mounted on the side of the robot arm body (2), a clamping block 1 (17) is fixedly mounted on the upper surface of the bottom plate (16), a limiting rod (18) is symmetrically fixedly mounted on the upper surface of the bottom plate (16), a tension spring (19) is symmetrically fixedly mounted on the upper surface of the bottom plate (16), a top plate (20) is fixedly mounted on one end of the tension spring (19), and a clamping block 2 (21) is fixedly mounted on the lower surface of the top plate (20).

6. The easy-to-lubricate mechanical arm structure according to claim 5, characterized in that: The bottom plate (16) and the top plate (20) are connected via a tension spring (19).

7. The easy-to-lubricate mechanical arm structure according to claim 5, characterized in that: The limiting rod (18) is slidably connected to the top plate (20), and a pull ring (22) is fixedly mounted on the upper surface of the top plate (20).

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