Mechanical arm for grabbing bearing

Abstract

The utility model discloses a mechanical arm for grabbing a bearing, which belongs to the technical field of mechanical arms and comprises a base plate, a support rod is rotatably connected onto the base plate, a rotating rod is rotatably connected in the support rod, a fixed arm is connected outside the rotating rod, a control arm is rotatably connected outside the fixed arm, a plurality of taking tools are arranged at one end of the control arm, and the other end of the control arm is provided with a handle. An auxiliary plate is connected to the outside of the supporting rod, a vertical plate is connected to the auxiliary plate, a sleeve is connected to the inside of the auxiliary plate, and a positioning rod is rotationally connected to the inside of the vertical plate. According to the mechanical arm for grabbing the bearing, a rotating ring, a sleeve, a rotating disc, a sealing plug, an auxiliary rod, a supporting plate and a limiting column are arranged, through cooperation of the auxiliary rod, the supporting plate and the limiting column, the sealing plug can achieve the reciprocating motion function in the sleeve, and lubricating liquid in the sleeve can conduct lubricating treatment on the rotating rod regularly; the phenomenon that the sleeve is dried or overheated after being used for a long time is avoided, and the service life of the rotating rod is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical arms, in particular to a mechanical arm for grabbing bearings. Background Art

[0002] Bearings are an important basic mechanical part. Their main function is to bear radial and axial loads during rotational motion and maintain rotational accuracy. In the production process, bearings need to be grasped by a robotic arm. A robotic arm is an important device in robotics technology. It is usually composed of a series of connecting rods. One end of each connecting rod is connected to the center of another connecting rod to form a movable mechanical structure. The end of the current robotic arm is equipped with a clamp, which can perform various tasks as needed to grasp the bearings and then carry them out. The support arm inside the robotic arm is used through a rotating rod. However, most robotic arms do not have a lubrication structure, and it is difficult to regularly lubricate the rotating rod of the support arm. When the rotating rod is used for a long time, it is prone to dryness or overheating, which can easily cause damage to the rotating rod. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the utility model provides a mechanical arm for grabbing bearings, which solves the problem that most mechanical arms do not have a lubrication structure, making it difficult to regularly lubricate the rotating rod of the arm, and the rotating rod is prone to drying or overheating when used for a long time, which can easily cause damage to the rotating rod.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical arm for grabbing bearings, comprising a chassis, a support rod rotatably connected to the chassis, a rotating rod rotatably connected inside the support rod, a fixed arm connected outside the rotating rod, a control arm rotatably connected outside the fixed arm, one end of the control arm is provided with multiple types of picking tools, an auxiliary plate connected outside the support rod, a vertical plate connected to the auxiliary plate, a sleeve connected inside the auxiliary plate, a positioning rod rotatably connected inside the vertical plate, a turntable connected outside the positioning rod, a rotating circle connected outside the rotating rod, a sealing plug slidably connected inside the sleeve, an auxiliary rod connected to the sealing plug, the auxiliary rod connected to the support plate, and a limiting column is provided on the front side of the turntable.

[0005] As a further solution of the utility model: a connecting line is provided on the support rod, and the support rod is connected to the control arm through the connecting line.

[0006] As a further solution of the utility model: the sleeve is overlapped outside the rotating rod, and a liquid outlet is opened under the sleeve.

[0007] As a further solution of the utility model: the auxiliary plate is externally connected to a liquid storage box, an indicator light is provided on the liquid storage box, and a connecting pipe is connected to one side of the liquid storage box.

[0008] As a further solution of the utility model: the other end of the connecting pipe is connected to the sleeve, and a sliding groove is provided in the supporting plate.

[0009] As a further solution of the utility model: the limit column is slidably connected in the slide groove, and one end of the positioning rod is connected to a motor.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The mechanical arm for grabbing the bearing is provided with a rotating circle, a sleeve, a turntable, a sealing plug, an auxiliary rod, a support plate and a limit column. The turntable is driven by a motor to rotate with the positioning rod as the center. When the turntable rotates, the limit column on the surface will slide in the slide groove, and the support plate will apply thrust to the auxiliary rod. The auxiliary rod will drive the sealing plug to slide in the sleeve, and the sealing plug can inject the lubricating oil in the sleeve to the surface of the rotating rod through the liquid outlet. The mechanical arm cooperates with the auxiliary rod, the support plate and the limit column, so that the sealing plug can realize the function of reciprocating movement in the sleeve, and the lubricating liquid in the sleeve can regularly lubricate the rotating rod to avoid drying or overheating of the sleeve due to long-term use, thereby ensuring the service life of the rotating rod.

[0012] 2. The mechanical arm for grabbing the bearing is provided with a liquid storage tank, an indicator light and a connecting pipe. When the lubricating liquid in the sleeve is too little, the indicator light will light up, and then the external controller will transport the lubricating liquid in the liquid storage tank to the sleeve through the connecting pipe, so that the lubricating liquid in the sleeve can be replenished regularly to avoid the difficulty in achieving the lubrication function due to too little lubricating liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural diagram of the fixed arm of the utility model;

[0015] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the support rod of the utility model;

[0016] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the sleeve of the utility model;

[0017] In the figure: 1. chassis; 2. support rod; 3. rotating rod; 4. fixed arm; 5. control arm; 6. connecting wire; 7. various types of picking tools; 8. auxiliary plate; 9. liquid storage box; 10. indicator light; 11. connecting pipe; 12. rotating circle; 13. sleeve; 14. vertical plate; 15. positioning rod; 16. turntable; 17. sealing plug; 18. liquid outlet; 19. auxiliary rod; 20. support plate; 21. slide groove; 22. limit column; 23. motor. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0019] like Figure 1-4 As shown, the utility model provides a technical solution: a mechanical arm for grabbing bearings, comprising a chassis 1, a support rod 2 is rotatably connected to the chassis 1, a rotating rod 3 is rotatably connected inside the support rod 2, a fixed arm 4 is externally connected to the rotating rod 3, a control arm 5 is rotatably connected outside the fixed arm 4, a plurality of types of grabbing tools 7 are arranged at one end of the control arm 5, an auxiliary plate 8 is externally connected to the support rod 2, and a vertical plate 14 is connected to the auxiliary plate 8;

[0020] The support rod 2 is provided with a connecting line 6, and the support rod 2 is connected to the control arm 5 through the connecting line 6. By setting multiple types of grabbing tools 7, when the mechanical arm grabs the bearing, the multiple types of grabbing tools 7 can rotate at one end of the control arm 5, and the corresponding clamp can be replaced according to the specifications of the bearing, thereby ensuring the flexibility of the mechanical arm;

[0021] A sleeve 13 is connected inside the auxiliary plate 8, a positioning rod 15 is rotatably connected inside the vertical plate 14, a turntable 16 is connected outside the positioning rod 15, a rotating circle 12 is connected outside the rotating rod 3, a sealing plug 17 is slidably connected inside the sleeve 13, an auxiliary rod 19 is connected to the sealing plug 17, a supporting plate 20 is connected to the auxiliary rod 19, and a limiting column 22 is provided on the front of the turntable 16. By setting the vertical plate 14, when the motor 23 drives the turntable 16 to rotate, the turntable 16 will rotate with the positioning rod 15 as the center, and the positioning rod 15 will rotate inside the vertical plate 14, so that the vertical plate 14 plays a certain positioning role in the rotation of the turntable 16, avoiding the turntable 16 from being misplaced when rotating;

[0022] The sleeve 13 is overlapped on the outside of the rotating rod 3, and a liquid outlet 18 is provided under the sleeve 13. A liquid storage box 9 is connected to the outside of the auxiliary plate 8, and an indicator light 10 is provided on the liquid storage box 9. A connecting pipe 11 is connected to one side of the liquid storage box 9, and the other end of the connecting pipe 11 is connected to the sleeve 13. A slide groove 21 is provided in the support plate 20. By providing the connecting pipe 11, when the lubricating liquid in the sleeve 13 is too little, the lubricating liquid in the liquid storage box 9 is transported to the sleeve 13 through the connecting pipe 11, so that the lubricating liquid in the sleeve 13 can be replenished regularly, avoiding insufficient lubricating liquid in the sleeve 13 during the lubrication process, and avoiding uneven lubrication of the rotating rod 3;

[0023] The limit column 22 is slidably connected in the slide groove 21, and one end of the positioning rod 15 is connected to the motor 23. By setting the slide groove 21, when the turntable 16 rotates, the limit column 22 on the front of the turntable 16 will slide in the slide groove 21, so that the slide groove 21 plays a certain guiding role for the limit column 22, thereby preventing the limit column 22 from getting stuck when moving.

[0024] The working principle of the utility model is:

[0025] When the robot arm is grabbing the bearing, the support rod 2 will rotate above the chassis 1, and the connecting line 6 can drive the fixed arm 4 to flip inside the support rod 2 with the rotating rod 3 as the center, and then the various types of picking tools 7 on the surface of the fixed arm 4 will grab the bearing. When the rotating rod 3 is rotating for a long time, the motor 23 drives the turntable 16 to rotate with the positioning rod 15 as the center. When the turntable 16 rotates, the limit column 22 on the surface will slide in the slide groove 21, and the support plate 20 will apply a thrust to the auxiliary rod 19, and the auxiliary rod 19 will drive the sealing plug 17 to slide in the sleeve 13, and the sealing plug 17 can inject the lubricating oil in the sleeve 13 to the surface of the rotating rod 3 through the liquid outlet 18. When the auxiliary rod 19 drives the sealing plug 17 to reset, the indicator light 10 will light up when the lubricating liquid in the sleeve 13 is too little, and then the external controller will transport the lubricating liquid in the liquid storage tank 9 to the sleeve 13 through the connecting pipe 11.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A mechanical arm for grasping a bearing, comprising a chassis (1), characterized in that: The chassis (1) is rotatably connected to a support rod (2), the support rod (2) is internally rotatably connected to a rotating rod (3), the rotating rod (3) is externally connected to a fixed arm (4), the fixed arm (4) is externally rotatably connected to a control arm (5), one end of the control arm (5) is provided with a plurality of types of picking tools (7), the support rod (2) is externally connected to an auxiliary plate (8), the auxiliary plate (8) is connected to a vertical plate (14), the auxiliary plate (8) is internally connected to A sleeve (13) is rotatably connected to a positioning rod (15) in the vertical plate (14), a rotating disk (16) is externally connected to the positioning rod (15), a rotating ring (12) is externally connected to the rotating rod (3), a sealing plug (17) is slidably connected to the sleeve (13), an auxiliary rod (19) is connected to the sealing plug (17), a supporting plate (20) is connected to the auxiliary rod (19), and a limiting column (22) is provided on the front of the rotating disk (16).

2. A mechanical arm for grabbing a bearing according to claim 1, characterized in that: The support rod (2) is provided with a connecting line (6), and the support rod (2) is connected to the control arm (5) via the connecting line (6).

3. A mechanical arm for grabbing a bearing according to claim 1, characterized in that: The sleeve (13) is overlapped on the outside of the rotating rod (3), and a liquid outlet (18) is provided under the sleeve (13).

4. A mechanical arm for grabbing a bearing according to claim 1, characterized in that: The auxiliary plate (8) is externally connected to a liquid storage box (9), an indicator light (10) is provided on the liquid storage box (9), and a connecting pipe (11) is connected to one side of the liquid storage box (9).

5. A mechanical arm for grabbing bearings according to claim 4, characterized in that: The other end of the connecting pipe (11) is connected to the sleeve (13), and a sliding groove (21) is provided in the supporting plate (20).

6. A mechanical arm for grabbing bearings according to claim 1, characterized in that: The limiting column (22) is slidably connected in the sliding groove (21), and one end of the positioning rod (15) is connected to a motor (23).

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