Positioner of welding robot

Abstract

The utility model discloses a positioner of a welding robot. The positioner comprises a bearing base, a rotating seat is fixedly installed on the outer surface of the bearing base, a motor is arranged above the bearing base, a rotating disc is arranged above the motor, a moving plate is arranged in the rotating disc, and a hydraulic rod is arranged below the moving plate. According to the positioner of the welding robot, through cooperation of the bearing base, the rotating base, the motor, the hydraulic rod and the rotating disc, a workpiece is firstly installed on the outer surface of the moving plate, the motor can drive the rotating disc to rotate, the welding robot can normally weld the workpiece, and when the face, close to the rotating disc, of the workpiece needs to be welded, the rotating disc can be driven by the motor to rotate; the hydraulic rod is started, the hydraulic rod can push the moving plate upwards, the moving plate can drive the workpiece to rotate by 90 degrees on the outer surface of the rotating disc, the face, originally close to the rotating disc, of the workpiece can be exposed, and therefore the problem that a conventional positioner still has dead corners is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioners, and particularly relates to a positioner for a welding robot. Background Technique

[0002] The positioner for a welding robot is a special welding auxiliary device, which is suitable for the welding position change of rotary work to obtain an ideal processing position and welding speed. It can be used in combination with an operating machine and a welding machine to form an automatic welding center, or can also be used for workpiece position change during manual operation. The positioner generally consists of a workbench rotation mechanism and a flipping mechanism. Through the lifting, flipping and rotation of the workbench, the workpiece fixed on the workbench can reach the required welding or assembly angle. The rotation of the workbench usually adopts a frequency converter to achieve stepless speed regulation with high speed regulation accuracy.

[0003] Although the positioner can rotate and change the rotation angle to expose the optimal position of the workpiece to be welded to the welding robot, there are still dead corners in the conventional positioner. The position of the dead corner is the side where the rotating disks of the positioner where the workpiece is installed are close to each other. Since the workpiece is installed on the rotating disk of the positioner, no matter how the positioner changes the angle, the side of the workpiece close to the rotating disk will not be exposed. To solve this technical problem, the utility model provides a positioner for a welding robot. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a positioner for a welding robot, which can effectively solve the problems mentioned in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A positioner for a welding robot, including a load-bearing base, a rotating seat is fixedly installed on the outer surface of the load-bearing base, a motor is arranged above the load-bearing base, a rotating disk is arranged above the motor, a moving plate is arranged inside the rotating disk, and a hydraulic rod is arranged below the moving plate.

[0007] Preferably, a driving rod is rotatably connected to the inner wall of the load-bearing base, and a driving gear is fixedly installed at one end of the driving rod.

[0008] Preferably, a mounting frame is fixedly installed on the outer surface of the driving rod, the outer surface of the mounting frame is fixedly installed with the outer surface of the motor, a rotating shaft is fixedly installed at the output end of the motor, and the top end of the rotating shaft is fixedly installed with the bottom surface of the rotating disk.

[0009] Preferably, a protective frame is fixedly installed on the outer surface of the mounting frame. The inner wall of the protective frame is rotatably connected to the outer surface of the rotating shaft. A hollowed-out plate is fixedly installed on the outer surface of the protective frame. The inner wall of the hollowed-out plate is rotatably connected to the outer surface of the rotating shaft.

[0010] Preferably, load-bearing columns are fixedly installed on the outer surface of the hollowed-out plate. The inner sides of the load-bearing columns are rotatably connected to the outer surface of the rotating disc. An activity groove is formed inside the rotating disc. A limiting load-bearing plate is fixedly installed on the inner side wall of the activity groove.

[0011] Preferably, the inner side wall of the activity groove is rotatably connected to the outer surface of the moving plate. The outer surface of the moving plate is in contact with and closely adheres to the outer surface of the limiting load-bearing plate.

[0012] Preferably, a bearing frame is fixedly installed on the bottom surface of the rotating disc. The outer surface of the bearing frame is rotatably connected to the outer surface of the hydraulic rod. The output end of the hydraulic rod is rotatably connected to the bottom surface of the moving plate.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] In the present utility model, through the cooperation among the load-bearing base, the rotating base, the motor, the hydraulic rod and the rotating disc, first install the workpiece on the outer surface of the moving plate. The motor can drive the rotating disc to rotate, enabling the welding robot to weld the workpiece normally. When it is necessary to weld the side of the workpiece close to the rotating disc, start the hydraulic rod. The hydraulic rod can push the moving plate upward, enabling the moving plate to drive the workpiece to rotate by 90 degrees on the outer surface of the rotating disc, so that the side of the workpiece that was originally close to the rotating disc can be exposed, thereby solving the problem that there are still dead corners in conventional positioners.

[0015] In the present utility model, through the cooperation among the driving rod, the load-bearing base, the driving gear and the driving rod, other driving servo drives are externally engaged with the driving gear, which can drive the driving rod and the upper equipment to move, realizing the function of horizontal rotation. A bearing is installed inside the load-bearing base, and the bearing is sleeved on the outer surface of the driving rod, making the driving rod rotate more flexibly.

[0016] In the present utility model, through the cooperation among the hollowed-out plate, the load-bearing columns, the rotating disc and the hydraulic rod, the hollowed-out plate and the load-bearing columns can provide support for the rotating disc, and the space reserved between the hollowed-out plate and the rotating disc can provide space for the operation of the hydraulic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of a positioner for a welding robot of the present utility model;

[0018] Figure 2Schematic diagram of the main structure of the positioner of a welding robot of the present utility model;

[0019] Figure 3 Schematic diagram of the bottom surface structure of the rotating disk of the positioner of a welding robot of the present utility model;

[0020] Figure 4 Schematic cross-sectional view of the rotating disk of the positioner of a welding robot of the present utility model;

[0021] Figure 5 Overall cross-sectional view of the positioner of a welding robot of the present utility model.

[0022] In the figure: 1, load-bearing base; 2, rotating seat; 3, motor; 4, rotating disk; 5, carrier; 6, moving plate; 7, hydraulic rod; 8, driving rod; 9, driving gear; 10, mounting bracket; 11, rotating shaft; 12, protective bracket; 13, hollow plate; 14, load-bearing column; 15, movable groove; 16, limit load-bearing plate. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As Figures 1-5 shown, a positioner of a welding robot includes a load-bearing base 1. A rotating seat 2 is fixedly installed on the outer surface of the load-bearing base 1. A motor 3 is arranged above the load-bearing base 1. A rotating disk 4 is arranged above the motor 3. A moving plate 6 is arranged inside the rotating disk 4. A hydraulic rod 7 is arranged below the moving plate 6. First, the workpiece is installed on the outer surface of the moving plate 6. The motor 3 can drive the rotating disk 4 to rotate, enabling the welding robot to weld the workpiece normally. When welding the side of the workpiece close to the rotating disk 4, the hydraulic rod 7 is started. The hydraulic rod 7 can push the moving plate 6 upward, enabling the moving plate 6 to drive the workpiece to rotate 90 degrees on the outer surface of the rotating disk 4, so that the side of the workpiece that was originally close to the rotating disk 4 can be exposed, thus solving the problem that there are still dead corners in the conventional positioner.

[0025] The inner wall of the load-bearing base 1 is rotatably connected to a driving rod 8. One end of the driving rod 8 is fixedly installed with a driving gear 9. The driving gear 9 is externally engaged with other driving servo motors, which can drive the driving rod 8 and the upper equipment to move, achieving the function of horizontal rotation. A bearing is installed inside the load-bearing base 1. The bearing is sleeved on the outer surface of the driving rod 8, making the driving rod 8 more flexible when rotating.

[0026] The outer surface of the active rod 8 is fixedly installed with a mounting frame 10. The outer surface of the mounting frame 10 is fixedly installed with the outer surface of the motor 3. The output end of the motor 3 is fixedly installed with a rotating shaft 11. The top end of the rotating shaft 11 is fixedly installed with the bottom surface of the rotating disc 4. The mounting frame 10 can provide support and load-bearing for the motor 3. When the active rod 8 rotates, it can drive the motor 3 to rotate through the mounting frame 10. The motor 3 can drive the rotating disc 4 to rotate through the rotating shaft 11, realizing the function of vertical rotation.

[0027] The outer surface of the mounting frame 10 is fixedly installed with a protective frame 12. The inner wall of the protective frame 12 is rotatably connected to the outer surface of the rotating shaft 11. The outer surface of the protective frame 12 is fixedly installed with a hollowed-out plate 13. The inner wall of the hollowed-out plate 13 is rotatably connected to the outer surface of the rotating shaft 11. The protective frame 12 can provide support for the hollowed-out plate 13 and the components above. Bearings are installed inside both the protective frame 12 and the hollowed-out plate 13. The bearings are sleeved on the outer surface of the rotating shaft 11, making the rotation of the rotating shaft 11 more flexible.

[0028] The outer surface of the hollowed-out plate 13 is fixedly installed with a load-bearing column 14. The inner side of the load-bearing column 14 is rotatably connected to the outer surface of the rotating disc 4. An activity groove 15 is opened on the inner side of the rotating disc 4. The inner side wall of the activity groove 15 is fixedly installed with a limit load-bearing plate 16. The hollowed-out plate 13 and the load-bearing column 14 can provide support for the rotating disc 4. The space reserved between the hollowed-out plate 13 and the rotating disc 4 can provide space for the operation of the hydraulic rod 7.

[0029] The inner side wall of the activity groove 15 is rotatably connected to the outer surface of the moving plate 6. The outer surface of the moving plate 6 is in contact with and closely attached to the outer surface of the limit load-bearing plate 16. The moving plate 6 can rotate within the activity groove 15. The limit load-bearing plate 16 can provide a limiting function for the moving plate 6, ensuring that the moving plate 6 does not exceed the activity groove 15 and move towards the hollowed-out plate 13 when moving.

[0030] The bottom surface of the rotating disc 4 is fixedly installed with a bearing frame 5. The outer surface of the bearing frame 5 is rotatably connected to the outer surface of the hydraulic rod 7. The output end of the hydraulic rod 7 is rotatably connected to the bottom surface of the moving plate 6. The bearing frame 5 can provide support for the hydraulic rod 7. When the hydraulic rod 7 jacks up, it can jack up and drive the moving plate 6, enabling the moving plate 6 to drive the workpiece to move and expose the dead angle. When the hydraulic rod 7 resets, it can also drive the moving plate 6 to reset the workpiece.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A positioner for a welding robot, characterized in that: It includes a load-bearing base (1), a rotating base (2) is fixedly installed on the outer surface of the load-bearing base (1), a motor (3) is arranged above the load-bearing base (1), a rotating disk (4) is arranged above the motor (3), a moving plate (6) is provided inside the rotating disk (4), and a hydraulic rod (7) is arranged below the moving plate (6).

2. The positioner of a welding robot according to claim 1, characterized in that: A driving rod (8) is rotatably connected to the inner wall of the load-bearing base (1), and a driving gear (9) is fixedly installed at one end of the driving rod (8).

3. The positioner of a welding robot according to claim 2, characterized in that: An installation frame (10) is fixedly installed on the outer surface of the driving rod (8), the outer surface of the installation frame (10) is fixedly installed with the outer surface of the motor (3), a rotating shaft (11) is fixedly installed at the output end of the motor (3), and the top end of the rotating shaft (11) is fixedly installed with the bottom surface of the rotating disk (4).

4. The positioner of a welding robot according to claim 3, characterized in that: A protective frame (12) is fixedly installed on the outer surface of the installation frame (10), the inner wall of the protective frame (12) is rotatably connected to the outer surface of the rotating shaft (11), a hollowed-out plate (13) is fixedly installed on the outer surface of the protective frame (12), and the inner wall of the hollowed-out plate (13) is rotatably connected to the outer surface of the rotating shaft (11).

5. The positioner of a welding robot according to claim 4, characterized in that: A load-bearing column (14) is fixedly installed on the outer surface of the hollowed-out plate (13), the inner side of the load-bearing column (14) is rotatably connected to the outer surface of the rotating disk (4), a movable groove (15) is formed inside the rotating disk (4), and a limiting load-bearing plate (16) is fixedly installed on the inner side wall of the movable groove (15).

6. The positioner of a welding robot according to claim 5, characterized in that: The inner side wall of the movable groove (15) is rotatably connected to the outer surface of the moving plate (6), and the outer surface of the moving plate (6) is in contact with and closely adheres to the outer surface of the limiting load-bearing plate (16).

7. The positioner of a welding robot according to claim 1, characterized in that: A bearing frame (5) is fixedly installed on the bottom surface of the rotating disk (4), the outer surface of the bearing frame (5) is rotatably connected to the outer surface of the hydraulic rod (7), and the output end of the hydraulic rod (7) is rotatably connected to the bottom surface of the moving plate (6).

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