Full-automatic micro electric welding robot

Abstract

The utility model relates to the technical field of electric welding robots, in particular to a full-automatic miniature electric welding robot which comprises a base, an installation block is fixedly installed on the surface of the upper end of the base, a first movable arm is rotationally connected into the installation block through a shaft rod, and a connecting shaft is rotationally connected to the end, away from the installation block, of the outer side wall of the first movable arm. A second movable arm is fixedly connected to the outer wall of the connecting shaft, a connecting frame is fixedly connected to the end, away from the connecting shaft, of the second movable arm, an electric welding head is fixedly installed on the bottom face of the connecting frame, and a round oil receiving bin is fixedly installed on the outer side wall of the first movable arm and located outside the connecting shaft. And lubricating oil drips onto the connecting shaft for lubricating operation, so that the lubricating operation is more convenient, normal rotation of the second movable arm is ensured, and a limiting shell, a ball and a movable roller are arranged, so that the electric wire can be protected and limited, friction damage is avoided, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of landscaping technology, specifically a fully automatic micro electric welding robot. Background Technology

[0002] Welding robots are industrial robots that perform welding. An industrial robot is a multi-purpose, reprogrammable, automatically controlled manipulator. A welding robot is an industrial robot with a welding clamp or welding gun attached to the end flange, enabling it to perform welding, cutting, or thermal spraying.

[0003] In the prior art, such as the fully automatic welding robot proposed in patent application number "CN202322158936.4", a third robotic arm is rotatably connected to a fourth robotic arm at the end away from the second robotic arm. A fourth servo motor for controlling the rotation of the fourth robotic arm is fixed on the third robotic arm. A fixed sleeve is installed at the end of the fourth robotic arm, and a welding head is provided on the fixed sleeve. An anti-splatter sleeve is installed on the fixed sleeve. This utility model can significantly adjust the position of the welding head, and the anti-splatter sleeve can reduce welding slag splashing.

[0004] However, in the aforementioned patent application, after long-term use, the connecting shaft used to drive the robotic arm to rotate is prone to insufficient lubrication due to frictional wear. It is necessary to manually remove external lubricating oil, manually align the connecting shaft, and then pour the lubricating oil for lubrication maintenance, which is quite troublesome. In addition, the wires used to connect the welding fluid are prone to moving when the robotic arm is moving, and after a long time, they are prone to frictional damage to the outer wall of the robotic arm. Utility Model Content

[0005] The purpose of this invention is to provide a fully automatic micro electric welding robot to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A fully automatic miniature electric welding robot includes a base, an mounting block fixedly mounted on the upper surface of the base, a movable arm 1 rotatably connected to the inside of the mounting block via a shaft, a connecting shaft rotatably connected to the outer side wall of the movable arm 1 away from the mounting block, a movable arm 2 fixedly connected to the outer wall of the connecting shaft, a connecting frame fixedly connected to the outer side of the movable arm 2 away from the connecting shaft, an electric welding head fixedly mounted on the bottom surface of the connecting frame, a circular oil receiving chamber fixedly mounted on the outer side wall of the movable arm 1 and located outside the connecting shaft, a lubrication mechanism provided on the outer wall of the circular oil receiving chamber, limit shells fixedly connected to the outer side walls of both the movable arm 2 and the movable arm 1, an electric wire fixedly connected to the upper end of the electric welding head, and a sealing gasket fixedly connected between the inner wall of the circular oil receiving chamber and the outer wall of the connecting shaft.

[0008] The lubrication mechanism includes an oil storage tank, which is fixedly installed on the outer wall of a circular oil receiving tank, and two support plates are fixedly connected to the bottom surface of the oil storage tank.

[0009] Preferably, the bottom of both support plates is fixedly connected to the circular oil receiving tank, and a connecting pipe is fixedly connected to the bottom surface of the oil receiving tank near the middle position. The bottom end of the connecting pipe is fixedly connected to the circular oil receiving tank, and a sealing plug is movably installed inside the connecting pipe.

[0010] Preferably, an annular groove is formed in the connecting pipe near the lower part, a fixed pipe and a refueling pipe are fixedly connected to the upper surface of the oil storage tank, an oil leakage pipe is fixedly connected to the outer wall of the circular oil receiving tank near the lower part, and both the oil leakage pipe and the refueling pipe are covered with sealing caps.

[0011] Preferably, a circular movable plate is movably mounted on the upper surface of the fixed tube, and two fixing nails are inserted into the upper surface of the circular movable plate. Fixing holes are opened on the upper surface of the fixed tube and located directly below the two fixing nails, and the fixing holes fit into the fixing nails.

[0012] Preferably, two pull rods are fixedly connected to the upper surface of the sealing plug, and the upper ends of the two pull rods are fixedly connected to a circular movable plate. Two vertical grooves are opened in the inner wall of the connecting tube, and sliders are slidably connected inside the two vertical grooves. One end of each slider is fixedly connected to the two pull rods.

[0013] Preferably, the limiting shell is fixedly equipped with a plurality of ball bearings, and two mounting plates are fixedly connected to both ends of the limiting shell. Two movable rollers are rotatably connected between the two mounting plates via a shaft.

[0014] Preferably, a motor is mounted on the outer wall of the mounting block, and the output end of the motor is connected to the movable arm. A second motor is mounted on the outer wall of the movable arm away from the mounting block, and the output end of the second motor is connected to the connecting shaft.

[0015] The beneficial effects of this utility model are:

[0016] 1. In this utility model, when the miniature welding robot stops working, the two fixing nails are pulled out from the circular movable plate, releasing the fixing of the circular movable plate. The circular movable plate is pulled upward, causing the two pull rods to move upward through the vertical groove and the slider, thereby moving the sealing plug upward so that the upper part of the sealing plug is located in the annular groove. At this time, the lubricating oil in the oil storage tank can flow out through the gap between the sealing plug and the annular groove and drip onto the connecting shaft to lubricate the connecting shaft, making the lubrication operation more convenient and ensuring the normal rotation of the second movable arm in the miniature welding robot for welding operations.

[0017] 2. This utility model uses two limiting shells to limit the movement of the wire. The wire passes through the inside of the two limiting shells and rolls with the movement of the wire by means of ball bearings. This converts the friction between the wire and the inner wall of the limiting shell into rolling friction, which reduces the friction between the wire and the inner wall of the limiting shell and avoids friction damage. At the same time, the movable rollers are in close contact with the outer wall of the wire, so that the two movable rollers rotate accordingly when the wire moves, which also reduces the friction between the wire and the end of the limiting shell. Thus, the wire is protected and limited, avoiding friction damage and extending its service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the movable arm 2 and the circular oil receiving tank in this utility model;

[0021] Figure 3 This is a cross-sectional view of the circular oil receiving tank and the oil storage tank in this utility model;

[0022] Figure 4 This is a cross-sectional view of the connecting pipe in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the limiting shell and the wire in this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the limiting shell and the movable roller in this utility model.

[0025] The attached figures are labeled as follows:

[0026] 1. Base; 2. Mounting block; 3. Wire; 4. Welding head; 5. Connecting frame; 6. Movable arm one; 7. Movable arm two; 8. Circular oil receiving tank; 9. Limiting shell; 10. Oil storage tank; 11. Oil leakage pipe; 12. Connecting pipe; 13. Connecting shaft; 14. Sealing gasket; 15. Fixing pipe; 16. Circular movable plate; 17. Oil filling pipe; 18. Pull rod; 19. Sealing plug; 20. Support plate; 21. Annular groove; 22. Fixing nail; 23. Slider; 24. Movable roller; 25. Mounting plate; 26. Ball bearing. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] A fully automated miniature welding robot, such as Figures 1-6 As shown, the device includes a base 1, with a mounting block 2 fixedly installed on the upper surface of the base 1. A movable arm 6 is rotatably connected to the inside of the mounting block 2 via a shaft. A connecting shaft 13 is rotatably connected to the outer wall of the movable arm 6 away from the mounting block 2. A movable arm 7 is fixedly connected to the outer wall of the connecting shaft 13. A connecting frame 5 is fixedly connected to the outer end of the movable arm 7 away from the connecting shaft 13. A welding head 4 is fixedly installed on the bottom surface of the connecting frame 5. A circular oil receiving tank 8 is fixedly installed on the outer wall of the movable arm 6 and located outside the connecting shaft 13. A lubrication mechanism is provided on the outer wall of the circular oil receiving tank 8. Limiting shells 9 are fixedly connected to the outer walls of both the movable arm 7 and the movable arm 6. An electric wire 3 is fixedly connected to the upper end of the welding head 4. A sealing gasket 14 is fixedly connected between the inner wall of the circular oil receiving tank 8 and the outer wall of the connecting shaft 13. The lubrication mechanism includes an oil storage tank 10, which is fixedly installed on the outer wall of the circular oil receiving tank 8. Two support plates 20 are fixedly connected to the bottom surface of the oil storage tank 10.

[0029] Among them, the end of the wire 3 away from the welding head 4 is connected to an external power source, so that power is supplied to the welding head 4.

[0030] The bottoms of the two support plates 20 are fixedly connected to the circular oil receiving tank 8. A connecting pipe 12 is fixedly connected to the bottom surface of the oil storage tank 10 near the middle. The bottom end of the connecting pipe 12 is fixedly connected to the circular oil receiving tank 8. A sealing plug 19 is movably installed inside the connecting pipe 12. An annular groove 21 is opened in the connecting pipe 12 near the lower part. A fixing pipe 15 and a filling pipe 17 are fixedly connected to the upper surface of the oil storage tank 10. An oil leakage pipe 11 is fixedly connected to the outer wall of the circular oil receiving tank 8 near the lower part. Both the oil leakage pipe 11 and the filling pipe 17 are covered with sealing caps. The circular oil receiving tank 8 can receive and store excess lubricating oil.

[0031] A circular movable plate 16 is movably mounted on the upper surface of the fixed tube 15. Two fixing nails 22 are inserted into the upper surface of the circular movable plate 16. Fixing holes are opened on the upper surface of the fixed tube 15 and directly below the two fixing nails 22, and the fixing holes fit with the fixing nails 22. Two pull rods 18 are fixedly connected to the upper surface of the sealing plug 19. The upper ends of the two pull rods 18 are fixedly connected to the circular movable plate 16. Two vertical grooves are opened on the inner wall of the connecting tube 12. Sliding sliders 23 are slidably connected inside the two vertical grooves. One end of the two sliding sliders 23 is fixedly connected to the two pull rods 18 respectively. When the fixing nails 22 are inserted into the fixing holes through the circular movable plate 16, the circular movable plate 16 can be fixed, thereby fixing the position of the sealing plug 19.

[0032] Motor 1 is installed on the outer wall of mounting block 2, and the output end of motor 1 is connected to movable arm 6. Motor 2 is installed on the outer wall of movable arm 6 away from mounting block 2, and the output end of motor 2 is connected to connecting shaft 13.

[0033] In use, the motor on the mounting block 2 drives the movable arm 6 to rotate, and the motor on the connecting shaft 13 to rotate, thereby driving the limiting shell 9 to rotate. This allows the welding head 4 connected to the connecting frame 5 to move, and the welding head 4 to perform welding operations on the part to be welded. If the connecting shaft 13 becomes insufficiently lubricated after prolonged use, the two fixing nails 22 can be pulled out from the circular movable plate 16 when the welding robot stops working, releasing the fixing of the circular movable plate 16. Then, the circular movable plate 16 is pulled upward, causing the two pull rods 18 to move upward through the vertical groove and the slider 23, thereby moving the sealing plug 19 upward, so that the upper part of the sealing plug 19 is located in the annular groove 21. At this time, the lubricating oil in the oil storage tank 10 can flow out through the gap between the sealing plug 19 and the annular groove 21 through the inside of the connecting pipe 12 and drip onto the connecting shaft 13 to lubricate the connecting shaft 13.

[0034] The sealing cap on the refueling pipe 17 can be removed to inject lubricating oil into the oil storage tank 10, filling the oil storage tank 10 and the connecting pipe 12 with lubricating oil. The sealing plug 19 seals the bottom of the connecting pipe 12 to prevent oil leakage when lubrication is not needed. The sealing cap on the oil leakage pipe 11 can be removed to allow excess lubricating oil collected in the circular oil receiving tank 8 for lubricating the connecting shaft 13 to leak out from the oil leakage pipe 11. The excess lubricating oil can be collected by the staff for reuse, avoiding waste.

[0035] The limiting shell 9 is fixedly installed with several balls 26. Two mounting plates 25 are fixedly connected to both ends of the limiting shell 9. Two movable rollers 24 are rotatably connected between the two mounting plates 25 through a shaft. The balls 26 can maintain a fixed position inside the limiting shell 9 and can maintain their original position rolling under the friction of the moving wire 3.

[0036] Specifically, the wire 3 connected to one end of the welding head 4 is used to connect the welding head 4 to a power source for welding operations. Two limiting shells 9 limit the wire 3. The wire 3 passes through the two limiting shells 9. When the movable arm 1 6 and movable arm 2 7 rotate, causing the wire 3 to move, the wire 3 can generate relative displacement within the two limiting shells 9. Each ball 26 is in contact with the outer wall of the wire 3 and can roll along with the wire 3, converting the friction between the wire 3 and the inner wall of the limiting shell 9 into rolling friction. This reduces the friction between the wire 3 and the inner wall of the limiting shell 9, preventing friction damage. Simultaneously, the movable rollers 24 are in close contact with the outer wall of the wire 3, so that when the wire 3 moves, the two movable rollers 24 rotate accordingly, similarly reducing the friction between the wire 3 and the end of the limiting shell 9. This achieves protection and limitation of the wire 3, preventing friction damage and extending its service life.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fully automatic miniature electric welding robot, comprising a base (1), characterized in that, An mounting block (2) is fixedly installed on the upper surface of the base (1). An movable arm (6) is rotatably connected inside the mounting block (2) via a shaft. A connecting shaft (13) is rotatably connected to the outer side wall of the movable arm (6) away from the mounting block (2). A movable arm (7) is fixedly connected to the outer wall of the connecting shaft (13). A connecting frame (5) is fixedly connected to the outer side of the movable arm (7) away from the connecting shaft (13). A welding head (4) is fixedly installed on the bottom surface of the connecting frame (5). A circular oil receiving chamber (8) is fixedly installed on the outer side wall of the movable arm (6) and located outside the connecting shaft (13). A lubrication mechanism is provided on the outer wall of the circular oil receiving chamber (8). Limiting shells (9) are fixedly connected to the outer side walls of both the movable arm (7) and the movable arm (6). An electric wire (3) is fixedly connected to the upper end of the welding head (4). A sealing gasket (14) is fixedly connected between the inner wall of the circular oil receiving chamber (8) and the outer wall of the connecting shaft (13). The lubrication mechanism includes an oil storage tank (10), which is fixedly installed on the outer wall of a circular oil receiving tank (8), and two support plates (20) are fixedly connected to the bottom surface of the oil storage tank (10).

2. The fully automatic miniature electric welding robot according to claim 1, characterized in that, The bottom of both support plates (20) is fixedly connected to the circular oil receiving tank (8). A connecting pipe (12) is fixedly connected to the bottom surface of the oil storage tank (10) near the middle. The bottom end of the connecting pipe (12) is fixedly connected to the circular oil receiving tank (8). A sealing plug (19) is movably installed inside the connecting pipe (12).

3. The fully automatic miniature electric welding robot according to claim 2, characterized in that, An annular groove (21) is provided in the inner part of the connecting pipe (12) near the lower part. A fixed pipe (15) and a refueling pipe (17) are fixedly connected to the upper surface of the oil storage tank (10). An oil leakage pipe (11) is fixedly connected to the outer wall of the circular oil receiving tank (8) near the lower part. Both the oil leakage pipe (11) and the refueling pipe (17) are covered with sealing caps.

4. The fully automatic miniature electric welding robot according to claim 3, characterized in that, A circular movable plate (16) is movably installed on the upper surface of the fixed tube (15). Two fixing nails (22) are inserted into the upper surface of the circular movable plate (16). Fixing holes are opened on the upper surface of the fixed tube (15) and located directly below the two fixing nails (22), and the fixing holes are matched with the fixing nails (22).

5. A fully automatic micro welding robot according to claim 2, characterized in that, Two pull rods (18) are fixedly connected to the upper surface of the sealing plug (19). The upper ends of the two pull rods (18) are fixedly connected to the circular movable plate (16). Two vertical grooves are opened in the inner wall of the connecting tube (12). Sliding sliders (23) are slidably connected inside the two vertical grooves. One end of the two sliders (23) is fixedly connected to the two pull rods (18) respectively.

6. The fully automatic miniature electric welding robot according to claim 1, characterized in that, The limiting shell (9) is fixedly equipped with a number of balls (26), and two mounting plates (25) are fixedly connected to both ends of the limiting shell (9). Two movable rollers (24) are rotatably connected between the two mounting plates (25) through a shaft.

7. The fully automatic miniature electric welding robot according to claim 1, characterized in that, Motor 1 is installed on the outer wall of the mounting block (2), and the output end of motor 1 is connected to movable arm 1 (6). Motor 2 is installed on the outer wall of movable arm 1 (6) away from the mounting block (2), and the output end of motor 2 is connected to connecting shaft (13).

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