Welding robot with positioning function

Abstract

The welding robot with the positioning function comprises a positioning table and a welding robot body, the welding robot body is arranged on one side of the positioning table, a servo motor is installed in the positioning table, a bidirectional lead screw is installed at the output end of the servo motor, the bidirectional lead screw is movably connected with the positioning table, and the welding robot body is connected with the positioning table. The surface of the bidirectional lead screw is sleeved with two sets of bidirectional threaded sleeves, the bidirectional threaded sleeves are in threaded connection with the bidirectional lead screw, the bidirectional threaded sleeves are slidably connected with the positioning table, bearing blocks are installed at the top ends of the bidirectional threaded sleeves correspondingly, and fixing rings are fixedly installed at the center positions of the top ends of the bearing blocks correspondingly. And bearing rings are slidably mounted on the two sides of the top end of the bearing block. According to the utility model, the steel pipe is conveniently clamped and fixed in a linkage centering manner, the steel pipe is conveniently subjected to opposite movement center positioning, and the welding accuracy and the welding convenience of the welding robot are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding robots, in particular to a welding robot with a positioning function. Background Art

[0002] A welding robot is a robotic device used for automatic welding. It can weld workpieces according to pre-set programs and paths. By equipping it with different welding equipment and tools, it can perform welding work on different types and materials. Although the welding robot can ensure its precise welding through computer programs and a variety of sensors, the positioning of the workpiece still needs to be done manually, and the efficiency of manual operation is low. In order to improve this situation, a welding robot with positioning function is proposed.

[0003] For example, a welding robot with a positioning function disclosed in the authorization announcement number CN221716027U includes a robot arm, a front end of the robot arm is fixedly connected to a bracket, a positioning portion is provided inside the bracket, and the positioning portion includes a positioning ring, a top surface of the positioning ring is fixedly connected to a sliding rod, a top surface of the sliding rod is fixedly connected to a connecting plate, a surface of the positioning ring is fixedly connected to a connecting frame, an inner side of the connecting frame is fixedly connected to a cylinder, and an output shaft of the cylinder is fixedly connected to a push column;

[0004] Although it can prevent the axial deviation of the pipes at both ends of the welding gun during welding, which will cause gaps in the welding, and ensure that the pipes fixed at both ends can maintain axial alignment, it does not solve the problem that the existing welding robots are not conducive to convenient linkage and centering clamping of fixed steel pipes when in use, and are not conducive to moving the steel pipes toward each other for center positioning, which affects the welding accuracy and convenience of the welding robots. Utility Model Content

[0005] The purpose of the present utility model is to provide a welding robot with a positioning function to solve the problem in the above-mentioned background technology that the welding robot is not convenient for convenient linkage and centering clamping of fixed steel pipes, is not conducive to the relative movement and center positioning of the steel pipes, and affects the welding accuracy and convenience of the welding robot.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding robot with a positioning function, comprising a positioning platform and a welding robot body, a welding robot body being provided on one side of the positioning platform, a servo motor being installed inside the positioning platform, a bidirectional screw being installed at the output end of the servo motor, and the bidirectional screw being movably connected to the positioning platform, two groups of bidirectional threaded sleeves being sleeved on the surface of the bidirectional screw, and the bidirectional threaded sleeves being threadedly connected to the bidirectional screw, and the bidirectional threaded sleeves being slidably connected to the positioning platform, a bearing block being installed at the top of each bidirectional threaded sleeve, a fixing ring being fixedly installed at the center position of the top of each bearing block, bearing rings being slidably installed at both sides of the top of each bearing block, and three groups of bearing plates with equal intervals being installed between the two groups of bearing rings, and the bearing plates being connected to the inner wall of the fixing ring, a gear ring being slidably installed inside the fixing ring, and a connecting plate being installed on the outer wall of each group of bearing plates.

[0007] Preferably, an adjustment motor is installed on the side wall of the connecting plate, and a drive shaft is installed on the output end of the adjustment motor.

[0008] Preferably, the surfaces of the drive shafts are all covered with gears, and the gears and the gear rings are meshed with each other.

[0009] Preferably, a clamping motor is installed on the end surface of the supporting plate, a moving screw is installed on the output end of the clamping motor, and the moving screw is movably connected to the supporting plate.

[0010] Preferably, the surface of the movable screw rod is covered with a movable threaded sleeve, and the movable threaded sleeve is threadedly connected to the movable screw rod, and the side wall of the movable threaded sleeve is installed with a connecting arm.

[0011] Preferably, a right movable shaft is installed at one end of the connecting arm close to the movable threaded sleeve, and the connecting arm is movably connected to the movable threaded sleeve through the right movable shaft.

[0012] Preferably, a clamping arm is installed on one end of the connecting arm away from the movable threaded sleeve, a left movable shaft is installed on one side of the clamping arm close to the connecting arm, and the clamping arm is movably connected to the connecting arm through the left movable shaft.

[0013] Preferably, a hinge shaft is installed at one end of the clamping arm close to the supporting plate, and the clamping arm is movably connected to the supporting plate through the hinge shaft.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: the welding robot not only realizes convenient linkage centering and clamping of the steel pipe, facilitates the center positioning of the steel pipe in the opposite direction, but also improves the welding accuracy and convenience of the welding robot;

[0015] (1) The two sections of steel pipes to be welded are placed in two sets of fixed rings respectively, the clamping motor drives the movable screw to rotate, the movable screw drives the movable threaded sleeve to move, the movable threaded sleeve drives the connecting arm to rotate through the right movable shaft, and the connecting arm drives the clamping arm to rotate with the hinge axis as the axis through the left movable shaft, so that the three sets of clamping arms are rotated toward the center point of the fixed ring, so that the clamping arms contact the outer wall of the steel pipe and clamp the steel pipe in the center, the servo motor drives the bidirectional screw to rotate, the bidirectional screw drives the two sets of bidirectional threaded sleeves to approach each other, the bidirectional threaded sleeve drives the bearing block, the bearing ring, the fixed ring, the clamping arm and the steel pipe to approach each other and contact each other, the center points of the two sets of fixed rings are on the same horizontal line, so that the two sets of steel pipes can contact each other in a center positioning manner, and then the bearing block is operated to weld the steel pipe;

[0016] (2) The adjustment motor drives the gear to rotate through the drive shaft, and the gear drives the gear ring to rotate inside the fixed ring. The gear ring drives the bearing plate and the bearing ring to rotate on the surface of the bearing block, thereby driving the clamping arm and the steel pipe to rotate. The bearing block continuously welds the steel pipe interface, thereby completing the use of the welding robot with positioning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the bearing block of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing ring of the present invention;

[0021] Figure 5 It is a schematic diagram of the front cross-sectional structure of the load-bearing plate of the present invention.

[0022] In the figure: 1. Positioning table; 2. Carrying block; 3. Carrying ring; 4. Fixed ring; 5. Welding robot body; 6. Bidirectional threaded sleeve; 7. Bidirectional lead screw; 8. Servo motor; 9. Carrying plate; 10. Gear ring; 11. Connecting plate; 12. Adjusting motor; 13. Driving shaft; 14. Gear; 15. Clamping motor; 16. Moving threaded sleeve; 17. Moving lead screw; 18. Right movable shaft; 19. Connecting arm; 20. Left movable shaft; 21. Clamping arm; 22. Articulated shaft. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-5 , the utility model provides an embodiment: a welding robot with a positioning function, comprising a positioning platform 1 and a welding robot body 5, a welding robot body 5 is provided on one side of the positioning platform 1, a servo motor 8 is installed inside the positioning platform 1, the servo motor 8 plays a role of power drive, a bidirectional screw rod 7 is installed on the output end of the servo motor 8, and the bidirectional screw rod 7 is movably connected to the positioning platform 1, the surface of the bidirectional screw rod 7 is covered with two groups of bidirectional threaded sleeves 6, and the bidirectional threaded sleeves 6 are threadedly connected to the bidirectional screw rod 7, and the bidirectional threaded sleeves 6 are slidably connected to the positioning platform 1, the top of the bidirectional threaded sleeves 6 are all installed with bearing blocks 2, the center position of the top of the bearing block 2 is fixedly installed with a fixing ring 4, the two sides of the top of the bearing block 2 are slidably installed with bearing rings 3, and three groups of bearing plates 9 with equal intervals are installed between the two groups of bearing rings 3, and the bearing plates 9 are connected to the inner wall of the fixing ring 4, the inside of the fixing ring 4 is slidably installed with a gear ring 10, and a connecting plate 11 is installed on the outer wall of a group of bearing plates 9;

[0025] The two sections of steel pipe to be welded are placed in the two groups of fixed rings 4 respectively, and then the clamping motor 15 is turned on, and the clamping motor 15 drives the movable screw 17 to rotate, and the movable screw 17 drives the movable threaded sleeve 16 to move, and the movable threaded sleeve 16 drives the connecting arm 19 to rotate through the right movable shaft 18, and the connecting arm 19 drives the clamping arm 21 to rotate with the hinge shaft 22 as the axis through the left movable shaft 20, so that the three groups of clamping arms 21 rotate toward the center point position of the fixed ring 4, so that the clamping arm 21 contacts the outer wall of the steel pipe and clamps the steel pipe in the center, and then turn on the servo motor 8, and the servo motor 8 drives the bidirectional screw 7 to rotate, and the bidirectional screw 7 drives the two groups of bidirectional threaded sleeves 6 to approach each other, and the bidirectional threaded sleeve 6 drives the bearing block 2, the bearing ring 3, the fixed ring 4, the clamping arm 21 and the steel pipe to approach each other and contact each other, and the center points of the two groups of fixed rings 4 are on the same horizontal line, so that the two groups of steel pipes can contact each other in a center positioning manner, and then operate the bearing block 2, and the bearing block 2 is used to weld the steel pipe;

[0026] An adjustment motor 12 is mounted on the side wall of the connecting plate 11. The adjustment motor 12 plays a role of power drive. A drive shaft 13 is mounted on the output end of the adjustment motor 12. A gear 14 is mounted on the surface of the drive shaft 13. The gear 14 is meshed with the gear ring 10.

[0027] The end surfaces of the carrier plates 9 are all equipped with clamping motors 15, which serve as power drivers. The output ends of the clamping motors 15 are all equipped with moving screws 17, which are movably connected to the carrier plates 9.

[0028] The surface of the movable screw rod 17 is covered with a movable threaded sleeve 16, and the movable threaded sleeve 16 is threadedly connected to the movable screw rod 17. The side wall of the movable threaded sleeve 16 is equipped with a connecting arm 19.

[0029] The end of the connecting arm 19 close to the movable threaded sleeve 16 is equipped with a right movable shaft 18, and the connecting arm 19 is movably connected to the movable threaded sleeve 16 through the right movable shaft 18. The end of the connecting arm 19 away from the movable threaded sleeve 16 is equipped with a clamping arm 21, and the side of the clamping arm 21 close to the connecting arm 19 is equipped with a left movable shaft 20, and the clamping arm 21 is movably connected to the connecting arm 19 through the left movable shaft 20.

[0030] A hinge shaft 22 is installed at one end of the clamping arm 21 close to the supporting plate 9, and the clamping arm 21 is movably connected to the supporting plate 9 through the hinge shaft 22;

[0031] Turn on the adjustment motor 12, and the adjustment motor 12 drives the gear 14 to rotate through the drive shaft 13. Under the mutual engagement of the gear 14 and the gear ring 10, the gear 14 drives the gear ring 10 to rotate inside the fixed ring 4, and the gear ring 10 drives the bearing plate 9 and the bearing ring 3 to rotate on the surface of the bearing block 2, thereby driving the clamping arm 21 and the steel pipe to rotate, and the bearing block 2 is used to continuously weld the steel pipe interface, thereby completing the use of the welding robot with positioning function.

[0032] Working principle: Place two sections of steel pipe to be welded in two groups of fixed rings 4 respectively, and the clamping motor 15 drives the movable screw 17 to rotate, and the movable screw 17 drives the movable threaded sleeve 16 to move, and the movable threaded sleeve 16 drives the connecting arm 19 to rotate through the right movable shaft 18, and the connecting arm 19 drives the clamping arm 21 to rotate with the hinge shaft 22 as the axis through the left movable shaft 20, so that the three groups of clamping arms 21 rotate toward the center point of the fixed ring 4, so that the clamping arm 21 contacts the outer wall of the steel pipe and clamps the steel pipe in the center, and the servo motor 8 drives the bidirectional screw 7 to rotate, and the bidirectional screw 7 drives the two groups of bidirectional threaded sleeves 6 to approach each other, and the bidirectional threaded sleeve 6 drives the bearing block 2 , the load-bearing ring 3, the fixed ring 4, the clamping arm 21 and the steel pipe are close to and in contact with each other, and the center points of the two groups of fixed rings 4 are on the same horizontal line, so the two groups of steel pipes can be in contact with each other in a center-positioned manner, and then the load-bearing block 2 is operated, and the steel pipe is welded by the load-bearing block 2, and the adjustment motor 12 drives the gear 14 to rotate through the drive shaft 13, and the gear 14 drives the gear ring 10 to rotate inside the fixed ring 4, and the gear ring 10 drives the load-bearing plate 9 and the load-bearing ring 3 to rotate on the surface of the load-bearing block 2, thereby driving the clamping arm 21 and the steel pipe to rotate, and the load-bearing block 2 is used to continuously weld the steel pipe interface, thereby completing the use of the welding robot with positioning function.

Claims

1. A welding robot with a positioning function, comprising a positioning platform (1) and a welding robot body (5), characterized in that: A welding robot body (5) is provided on one side of the positioning platform (1), a servo motor (8) is installed inside the positioning platform (1), a bidirectional screw rod (7) is installed at the output end of the servo motor (8), and the bidirectional screw rod (7) is movably connected to the positioning platform (1), and the surface of the bidirectional screw rod (7) is provided with two sets of bidirectional threaded sleeves (6), and the bidirectional threaded sleeves (6) are threadedly connected to the bidirectional screw rod (7), and the bidirectional threaded sleeves (6) are slidably connected to the positioning platform (1), and the bidirectional threaded sleeves (6) are slidably connected to the positioning platform (1). ) are all installed with a bearing block (2) at the top, a fixing ring (4) is fixedly installed at the center position of the top of the bearing block (2), and bearing rings (3) are slidably installed on both sides of the top of the bearing block (2), and three groups of bearing plates (9) with equal spacing are installed between the two groups of bearing rings (3), and the bearing plates (9) are connected to the inner wall of the fixing ring (4), and a gear ring (10) is slidably installed inside the fixing ring (4), and a connecting plate (11) is installed on the outer wall of a group of bearing plates (9).

2. A welding robot with positioning function according to claim 1, characterized in that: An adjustment motor (12) is installed on the side wall of the connecting plate (11), and a driving shaft (13) is installed at the output end of each adjustment motor (12).

3. The welding robot with positioning function according to claim 2, characterized in that: The surface of the driving shaft (13) is covered with a gear (14), and the gear (14) and the gear ring (10) are meshed with each other.

4. The welding robot with positioning function according to claim 1, characterized in that: A clamping motor (15) is installed on the end surface of the carrier plate (9), and a moving screw rod (17) is installed on the output end of the clamping motor (15), and the moving screw rod (17) is movably connected to the carrier plate (9).

5. The welding robot with positioning function according to claim 4, characterized in that: The surface of the movable screw rod (17) is covered with a movable thread sleeve (16), and the movable thread sleeve (16) is threadedly connected to the movable screw rod (17), and the side wall of the movable thread sleeve (16) is installed with a connecting arm (19).

6. The welding robot with positioning function according to claim 5, characterized in that: One end of the connecting arm (19) close to the movable threaded sleeve (16) is equipped with a right movable shaft (18), and the connecting arm (19) is movably connected to the movable threaded sleeve (16) through the right movable shaft (18).

7. The welding robot with positioning function according to claim 5, characterized in that: The end of the connecting arm (19) away from the movable threaded sleeve (16) is equipped with a clamping arm (21), and the side of the clamping arm (21) close to the connecting arm (19) is equipped with a left movable shaft (20), and the clamping arm (21) is movably connected to the connecting arm (19) through the left movable shaft (20).

8. The welding robot with positioning function according to claim 7, characterized in that: The clamping arm (21) is provided with a hinge shaft (22) at one end close to the bearing plate (9), and the clamping arm (21) is movably connected to the bearing plate (9) via the hinge shaft (22).

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