Mobile welding robot

Abstract

The utility model discloses a mobile welding robot, including base and the welding mechanical arm of being located at the top of base, the base bottom is equipped with a plurality of gyro wheel for the supplementary welding robot movement, the lateral wall of base is evenly equipped with a plurality of lateral setting and the support arm of movable up and down, be equipped with the support arm on the support leg who sets to the bottom seat outside and is bent down to the bottom seat outside, support arm end extends, the support leg includes the horizontal section of support arm connection and the vertical section of being supported on the ground and bending down to the bottom. The utility model has can strengthen the positioning to welding robot when welding robot is stationary, maintains the stability of welding robot, avoids the deviation of welding robot because of external force, guarantees welding work normal and stable and carries out etc. Characteristic.

Description

Technical Field

[0001] This utility model specifically relates to a mobile welding robot, belonging to the field of welding robot technology. Background Technology

[0002] Current mobile welding robots typically move in a straight line along a track and are controlled by the track distance. Outdoors, they lack a traveling crane and welding rotation platform, and welding is done entirely by manual labor.

[0003] Chinese patent application CN209256157U discloses a large-scale automated mobile welding robot, which includes a wheeled walking mechanism, a six-axis welding robot, a stereo vision camera and a laser guidance radar. The wheeled walking mechanism is an omnidirectional four-wheel drive platform, and the six-axis robot is mounted on the wheeled walking mechanism. The six-axis robot is mounted on the welding torch.

[0004] In the aforementioned prior art, after the welding robot moves to a designated position and comes to a stop, the workpiece needs to be welded. At this time, it is necessary to keep the welding robot stationary and stable. If accidental collision or other external forces occur, the position of the welding robot itself may shift due to the rollers at the bottom, affecting the stability of the welding robot during welding and causing welding errors. Utility Model Content

[0005] The purpose of this invention is to provide a mobile welding robot that solves the problems of displacement caused by external forces in the existing technology.

[0006] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: a mobile welding robot, including a base and a welding mechanical arm disposed on the top of the base. The bottom of the base is provided with a plurality of rollers for assisting the movement of the welding robot. A plurality of horizontally arranged and vertically movable support arms are evenly arranged on the side wall of the base. The support arms are provided with legs that are arranged outward from the base and bent downward. The ends of the support arms extend to the outside of the base. The legs include a horizontal section connected to the support arm and a vertical section bent downward and supported on the ground.

[0007] As a further preferred technical solution of this utility model, the bottom end of the vertical section of the support leg is provided with a support plate that can abut against the ground, and the contact surface between the support plate and the ground is a rough surface.

[0008] As a further preferred technical solution of this utility model; the base has a cavity in the middle, the bottom of the base has a drive motor, the output shaft of the drive motor extends upward into the cavity, the cavity has a vertically arranged threaded column coaxially connected with the output shaft of the drive motor, and a lifting seat threadedly connected to the threaded column is sleeved on the threaded column.

[0009] As a further preferred technical solution of this utility model; one end of the support arm is connected to the lifting seat, the other end of the support arm is provided with a receiving groove, the horizontal section of the support leg passes through the receiving groove and slides with the receiving groove, and a locking bolt that can abut against the side wall of the horizontal section passes through the side wall of the support arm located outside the base.

[0010] As a further preferred technical solution of this utility model; the side wall of the chamber is provided with a vertically arranged strip groove that cooperates with the support arm, the bottom of the support arm is provided with a limiting slider that cooperates with the strip groove, both sides of the strip groove are provided with limiting grooves arranged in the same direction as the strip groove, and the side wall of the limiting slider is provided with a limiting block that cooperates with the limiting groove.

[0011] As a further preferred technical solution of this utility model; above the top of the strip groove, corresponding to the top of the support arm, there is a fixed seat connected to the support arm, the side wall of the fixed seat is provided with a slot, the slot is provided with a movable block that can move laterally, and the inside of the slot is provided with a telescopic spring connected to the side wall of the movable block.

[0012] Therefore, this utility model has the characteristics of strengthening the positioning of the welding robot when it is stationary, maintaining the stability of the welding robot, preventing the welding robot from shifting due to external forces, and ensuring that the welding work is carried out normally and stably. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Structural sectional view; Figure 3 yes Figure 2 Enlarged view of the structure at point A in the diagram; Figure 4 yes Figure 1 A schematic diagram of the support arm in the diagram. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0015] like Figure 1-2As shown, a mobile welding robot includes a base 1 and a welding robotic arm 2 located on top of the base 1. The base 1 has multiple rollers 11 at its bottom to assist the welding robot's movement. The welding robotic arm 2 is existing technology and can perform welding on workpieces via multi-axis movement. The rollers 11 at the bottom of the base 1 can be driven to rotate by a drive component to move the welding robot, or they can be manually pulled or dragged. Multiple horizontally arranged and vertically movable support arms 3 are evenly arranged on the sidewall of the base 1. Each support arm 3 has a support extending outwards from the base 1. The support legs 4 are set and bent downwards. The number of support arms 3 around the base 1 can be set according to the actual stability. After the welding robot moves to a designated position and stops, the support arms 3 can be driven to move the support legs 4 downwards until the lower end of the support legs 4 touches the ground. At this time, the support arms 3 can continue to be driven downwards, and the support arms 3 can move the support legs 4 downwards until the rollers 11 move upwards and leave the ground. This realizes the support and positioning of the support legs 4 for the base 1 and the welding robot arm 2. The contact between the lower end of the support legs 4 and the ground increases the static friction between the base 1 and the ground, thereby avoiding the welding robot from being damaged by external forces. If the welding robot deviates or shifts, affecting the normal progress of welding work, and needs to be moved, the drive support arm 3 moves in the opposite direction. The support arm 3 and the outrigger 4 move upward relative to the base 1, causing the outrigger 4 to lift off the ground and the roller 11 to re-contact the ground, thus allowing the welding robot to move. The end of the support arm 3 extends to the outside of the base 1. The outrigger 4 includes a horizontal section 41 connected to the support arm 3 and a vertical section 42 bent downward and supported on the ground. The horizontal section 41 of the outrigger 4 connects to the support arm 3, and the vertical section 42 of the outrigger 4 can contact the ground to support the welding robot. The horizontal section 41 and the vertical section 42 increase the support area of ​​each support arm 3 on the base 1, thereby enhancing the support stability and smoothness of the welding robot and preventing the welding robot from tipping over. The bottom end of the vertical section 42 of the support leg 4 is provided with a support plate 43 that can abut against the ground. The contact surface between the support plate 43 and the ground is a rough surface. The setting of the support plate 43 increases the contact area between the bottom end of the support leg 4 and the ground, enhancing the support stability of the welding robot. At the same time, the setting of the rough surface enhances the stability of the welding robot when it is stationary, preventing the welding robot from sliding.

[0016] like Figure 1 , 2As shown in Figure 4, a chamber 12 is provided in the middle of the base 1, and a drive motor 13 is provided at the bottom of the base 1. The output shaft of the drive motor 13 extends upward into the chamber 12. A threaded column 14 is provided in the chamber 12, which is vertically arranged and coaxially connected to the output shaft of the drive motor 13. The drive motor 13 is fixed to the bottom of the base 1. The output shaft of the drive motor 13 passes through the bottom wall of the chamber 12 and enters the chamber 12, where it is coaxially connected to the lower end of the threaded column 14. The upper end of the threaded column 14 is rotatably connected to the top of the chamber 12. The drive motor 13 can drive the threaded column 14 to rotate. A lifting seat 15 is sleeved on the threaded column 14 and threadedly connected to it. One end of the support arm 3 is connected to the lifting seat 15. The lifting seat 15 is sleeved on the side wall of the threaded column 14 and threadedly connected to it, so that the rotation of the threaded column 14 can drive the lifting seat 15 to rotate. The axis of the threaded column 14 moves, thereby driving the support arm 3 to move up and down. The other end of the support arm 3 is provided with a receiving groove 31. The horizontal section 41 of the support leg 4 passes through the receiving groove 31 and slides with the receiving groove 31. A locking bolt 32 that can abut against the side wall of the horizontal section 41 passes through the side wall of the support arm 3 outside the base 1. The support leg 4 can move laterally relative to the support arm 3 through the horizontal section 41 located in the receiving groove 31, and the support arm 3 and the horizontal section 41 are locked by the locking bolt 32 to extend the support range of the support leg 4 for the base 1, thereby increasing the support area and strengthening the support strength. After the support is completed, the locking bolt 32 can be loosened and the support leg 4 can be moved so that the horizontal section 41 moves into the receiving groove 31 to shorten the length of the support leg 4 outside the base 1, thereby reducing the volume of the body and making it easier to store.

[0017] like Figure 2-4As shown, the side wall of chamber 12 is provided with a vertically arranged strip groove 121 that cooperates with the support arm 3. The bottom of the support arm 3 is provided with a limiting slider 33 that cooperates with the strip groove 121. The support arm 3 moves up and down along the strip groove 121 through the cooperation of the limiting slider 33 and the strip groove 121, limiting and guiding the up and down movement of the support arm 3 to enhance the stability and smoothness of the movement of the support arm 3. Both sides of the strip groove 121 are provided with limiting grooves 122 that are arranged in the same direction as the strip groove 121. The side wall of the limiting slider 33 is provided with A limiting block 331 is provided to cooperate with the limiting groove 122. The cooperation between the limiting groove 122 and the limiting block 331 can increase the limiting of the limiting slider 33, prevent the limiting slider 33 and the support arm 3 from deviating when moving, and enhance the moving stability of the support arm 3. A fixed seat 34 is provided above the top of the strip groove 121 corresponding to the top of the support arm 3, and is connected to the support arm 3. The side wall of the fixed seat 34 is provided with a slot 341, and a movable block 35 that can move laterally is provided in the slot 341. The fixed seat 34 is located at the top of the support arm 3. When arm 3 moves, it drives fixed base 34 to move synchronously. When the support arm 3 moves downward into position, the movable block 35 on the side of fixed base 34 just extends out of slot 341. The top surface of movable block 35 abuts against the top surface of strip groove 121. Thus, when the support leg 4 supports the welding robot and the roller 11 leaves the ground, the movable block 35 further supports the base 1 and the welding robot arm 2 on top of it, strengthening the support strength of the base 1 and the welding robot arm 2 on top of it, reducing the support burden on threaded column 14 and lifting seat 15, and improving support stability. The slot 341 is equipped with a telescopic spring 342 connected to the side wall of the movable block 35. The telescopic spring 342 is designed so that when the fixed seat 34 moves down into the strip groove 121, the movable block 35 can automatically pop out of the slot 341, so that the top surface of the movable block 35 abuts against the top surface of the strip groove 121. Before the support arm 3 moves back to the uppermost side, the movable block 35 needs to be pushed so that the movable block 35 enters the slot 341 and the telescopic spring 342 retracts, so that the fixed seat 34 returns to its original position and makes way for the support arm 3 to move upward.

[0018] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A mobile welding robot, comprising a base (1) and a welding robotic arm (2) disposed on top of the base (1), wherein the bottom of the base (1) is provided with a plurality of rollers (11) for assisting the movement of the welding robot, characterized in that: The base (1) has a plurality of horizontally arranged and vertically movable support arms (3) evenly arranged on its side wall. Each support arm (3) has a leg (4) that is arranged outward from the base (1) and bent downward. The end of the support arm (3) extends to the outside of the base (1). The leg (4) includes a horizontal section (41) connected to the support arm (3) and a vertical section (42) bent downward and supported on the ground.

2. The mobile welding robot according to claim 1, characterized in that: The bottom end of the vertical section (42) of the outrigger (4) is provided with a support plate (43) that can contact the ground, and the contact surface between the support plate (43) and the ground is a rough surface.

3. The mobile welding robot according to claim 1, characterized in that: The base (1) has a cavity (12) in the middle and a drive motor (13) at the bottom. The output shaft of the drive motor (13) extends upward into the cavity (12). The cavity (12) has a vertically arranged threaded column (14) that is coaxially connected with the output shaft of the drive motor (13). A lifting seat (15) that is threadedly connected to the threaded column (14) is sleeved on the threaded column (14).

4. The mobile welding robot according to claim 3, characterized in that: One end of the support arm (3) is connected to the lifting seat (15), and the other end of the support arm (3) is provided with a receiving groove (31). The horizontal section (41) of the support leg (4) passes through the receiving groove (31) and slides with the receiving groove (31). A locking bolt (32) that can abut against the side wall of the horizontal section (41) passes through the side wall of the support arm (3) located outside the base (1).

5. The mobile welding robot according to claim 3, characterized in that: The side wall of the chamber (12) is provided with a vertically arranged strip groove (121) that cooperates with the support arm (3). The bottom of the support arm (3) is provided with a limiting slider (33) that cooperates with the strip groove (121). Both sides of the strip groove (121) are provided with limiting grooves (122) that are arranged in the same direction as the strip groove (121). The side wall of the limiting slider (33) is provided with a limiting block (331) that cooperates with the limiting groove (122).

6. The mobile welding robot according to claim 5, characterized in that: The top of the strip groove (121) is provided with a fixed seat (34) connected to the top of the support arm (3). The fixed seat (34) has a slot (341) on its side wall. The slot (341) contains a movable block (35) that can move laterally. The slot (341) contains a telescopic spring (342) connected to the side wall of the movable block (35).

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