A steel structure welding robot

Abstract

The application discloses a steel structure welding robot, and relates to the technical field of welding robots, which comprises a base and a multi-axis welding robot, and further comprises four universal wheels arranged in the interior of the base, two adjusting mechanisms fixed at the two sides of the top of the base respectively and used for driving the universal wheels to enter and exit the base, a mechanical arm arranged at one side of the multi-axis welding robot, wherein the mechanical arm comprises a fixed arm and a movable arm arranged outside the fixed arm through a driving assembly, and the adjusting mechanism comprises a convex shell, the top of the convex shell is fixedly connected with a motor, and the steel structure welding robot is used for relieving the limitation of the electromagnetic chuck by a worker when the multi-axis robot finishes steel structure welding work at a certain position, then driving the threaded rod to rotate through the driving mechanism, thereby driving the four groups of universal wheels in the interior of the base to extend out, and further making the movement of the multi-axis welding robot more convenient and efficient, saving time and effort and reducing the labor intensity of the worker.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding robots, in particular to a steel structure welding robot. BACKGROUND

[0002] With the development of science and technology, the application of building engineering steel structure in the world is more and more widely, and welding is a very important processing technology in steel structure manufacturing. There are many kinds of equipment for steel structure welding, and the commonly used steel structure welding adopts mechanical arm to hold welding rod for welding. The range of large mechanical arm welding is larger, but the large mechanical arm is not convenient to move, so small multi-axis robots are designed for some special construction sites to carry out welding work. The small multi-axis robot base is installed with an electromagnetic chuck, the equipment is carried by manual, and then the bottom electromagnetic chuck is used for fixing, and the last shaft flange is connected with a welding gun to align the welding position for welding work.

[0003] Compared with large welding robots, small multi-axis handheld welding robots are convenient to move and easy to operate, but the small welding robots still have a certain weight. In the frequent welding work, especially when the robot is moved for a long distance, the workers are time-consuming and laborious, and the labor intensity is large, and the operation range in the working space is usually small, so that the weldable range is small. SUMMARY

[0004] In view of the defects of the prior art, the present application provides a steel structure welding robot, which solves the problem that the small welding robot is time-consuming and laborious in the frequent welding work, especially when the robot is moved for a long distance, and the operation range in the working space is usually small.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a steel structure welding robot, comprising a base and a multi-axis welding robot, further comprising:

[0006] Four universal wheels are arranged in the interior of the base;

[0007] Two adjusting mechanisms are respectively fixed on both sides of the top of the base, and are used to drive the universal wheels to enter and exit the base;

[0008] A mechanical arm is arranged on one side of the multi-axis welding robot, and the mechanical arm comprises a fixed arm and a movable arm arranged outside the fixed arm through a driving assembly.

[0009] Preferably, the adjusting mechanism comprises a convex shell, the top of the convex shell is fixedly connected with a motor, and the output end of the motor is fixedly connected with a fixed rod, one end of the fixed rod penetrating into the inside of the convex shell is fixedly connected with a double-layer belt pulley, both sides of the top of the inner wall of the convex shell are rotatably connected with connecting rods, and the bottom of the connecting rods is fixedly connected with threaded rods, the surfaces of the connecting rods are fixedly connected with single-layer belt pulleys, and the double-layer belt pulley and the two single-layer belt pulleys are connected through belts.

[0010] Preferably, the inside of the base is provided with cavities on both sides, the surface of the threaded rod is threadedly connected with a threaded sleeve, both sides of the threaded sleeve are slidably connected with the inner wall of the cavity through sliding blocks, the bottom of the threaded sleeve is fixedly connected with a pad plate, and the bottom of the pad plate is fixedly connected with the top of the universal wheel.

[0011] Preferably, both sides of the base are fixedly connected with electromagnetic suction discs, and the multi-axis welding robot is arranged on the top of the base.

[0012] Preferably, the driving assembly comprises an electric telescopic rod, the inside of the fixed arm is provided with a cavity, one side of the inner wall of the cavity is fixed with the electric telescopic rod, the movable arm is sleeved on the outer surface of the fixed arm, the top and the bottom of the fixed arm are fixedly connected with convex blocks, the inner wall of the movable arm is provided with a sliding groove matched with the convex blocks, and the output end of the electric telescopic rod is fixedly connected with the inner wall of the movable arm.

[0013] Preferably, both sides of the welding torch are fixedly connected with first convex plates, both sides of the end of the mechanical arm are fixedly connected with second convex plates, and the first convex plates and the second convex plates are fixedly connected through the locking mechanism.

[0014] Preferably, the locking mechanism comprises a mounting rod fixed on the surface of the first convex plate, the surface of the second convex plate is fixedly connected with an annular plate, both sides of the annular plate are threadedly penetrated with screw rods, one end of the screw rod is rotatably connected with an arc-shaped plate, the inner side of the arc-shaped plate is fixedly connected with a clamping block, and the surface of the mounting rod is provided with a clamping groove matched with the clamping block.

[0015] Preferably, the top and the bottom of the inner wall of the annular plate are fixedly connected with arc-shaped blocks matched with the mounting rod, and the surface of the screw rod and the outer side of the annular plate are sleeved with a lock washer.

[0016] The application provides a steel structure welding robot.

[0017] (1) The steel structure welding robot, when the multi-axis robot finishes the steel structure welding work at a certain place, the staff releases the restriction of the electromagnetic suction cup, then drives the threaded rod to rotate through the adjusting mechanism, thereby driving the four groups of universal wheels inside the base to extend, and the movement of the multi-axis welding robot is more convenient and efficient, saving time and effort, and reducing the labor intensity of the staff.

[0018] (2) The steel structure welding robot, the welding gun is connected with the mechanical arm through the locking mechanism, which is more quick and convenient to disassemble and assemble than the flange connection, without the need of external special tools, and the working efficiency is improved.

[0019] (3) The steel structure welding robot, the movable arm can reciprocate on the fixed arm through the electric telescopic rod, the length of the mechanical arm is adjusted, the operable range of the robot in the working space is increased, the use is more flexible, and the application range is wider. SUMMARY

[0020] Figure 1 is a schematic view of the structure of the present application;

[0021] Figure 2 is a schematic view of the internal structure of the base of the present application;

[0022] Figure 3 is a sectional view of the mechanical arm structure of the present application;

[0023] Figure 4 is a partial enlarged view of A in the present application; Figure 1

[0024] Figure 5 is a sectional view of the locking mechanism structure of the present application.

[0025] In the figure: 1, base; 2, multi-axis welding robot; 3, universal wheel; 4, adjusting mechanism; 41, convex shell; 42, motor; 43, fixed rod; 44, double-layer pulley; 45, connecting rod; 46, threaded rod; 47, single-layer pulley; 48, belt; 5, mechanical arm; 51, fixed arm; 52, movable arm; 6, cavity; 7, threaded sleeve; 8, sliding block; 9, backing plate; 10, electromagnetic suction cup; 11, electric telescopic rod; 12, cavity; 13, protruding block; 14, sliding groove; 15, welding gun; 16, first protruding plate; 17, second protruding plate; 18, locking mechanism; 181, mounting rod; 182, annular plate; 183, screw rod; 184, arc-shaped plate; 185, clamping block; 186, clamping groove; 187, arc-shaped block; 188, lock washer. DETAILED DESCRIPTION

[0026] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0027] Embodiment one

[0028] Please refer to Figure 1 and Figure 2 The present application provides a steel structure welding robot, which comprises a base 1 and a multi-axis welding robot 2, and the two sides of the base 1 are fixedly connected with electromagnetic suction cups 10. The multiple sets of electromagnetic suction cups 10 facilitate the fixation of the multi-axis welding robot 2 on the surface of the steel structure, so that the welding work is more stable. The multi-axis welding robot 2 is arranged on the top of the base 1, and further comprises:

[0029] Four universal wheels 3 are arranged in the interior of the base 1, so that the movement of the multi-axis welding robot 1 is more convenient;

[0030] Two adjusting mechanisms 4 are fixedly arranged on the two sides of the top of the base 1, and are used to drive the universal wheels 3 to enter and exit the base 1. The adjusting mechanism 4 comprises a convex shell 41 fixedly arranged on the top of the base 1, a motor 42 fixedly connected with the top of the convex shell 41, a fixed rod 43 fixedly connected with the output end of the motor 42, a double-layer belt pulley 44 fixedly connected with one end of the fixed rod 43 penetrating into the interior of the convex shell 41, connecting rods 45 rotatably connected with the two sides of the top of the inner wall of the convex shell 41, threaded rods 46 fixedly connected with the bottom of the connecting rods 45, single-layer belt pulleys 47 fixedly connected with the surfaces of the connecting rods 45, belts 48 transmissionally connected between the double-layer belt pulley 44 and the two single-layer belt pulleys 47, cavities 6 formed in the two sides of the interior of the base 1, the universal wheels 3 located in the cavities 6, threaded sleeves 7 threadedly connected with the surfaces of the threaded rods 46, the two sides of the threaded sleeves 7 slidably connected with the inner walls of the cavities 6 through sliding blocks 8, and backing plates 9 fixedly connected with the bottom of the threaded sleeves 7 and the top of the universal wheels 3.

[0031] A mechanical arm 5 is arranged on one side of the multi-axis welding robot 2. The mechanical arm 5 comprises a fixed arm 51 and a movable arm 52 arranged outside the fixed arm 51 through a driving assembly.

[0032] Through the above structure, the adjusting mechanism 4 drives the threaded rod 46 to rotate, so that the four sets of universal wheels 3 in the interior of the base 1 are extended, and the movement of the multi-axis welding robot 2 is more convenient and efficient, which saves time and effort and reduces the labor intensity of the workers.

[0033] Embodiment two

[0034] On the basis of embodiment one, please refer to Figure 1 and Figure 3 As shown in the specific improvement: the driving assembly includes an electric telescopic rod 11, a cavity 12 is opened in the inside of the fixed arm 51, the electric telescopic rod 11 is fixed on one side of the inner wall of the cavity 12, the movable arm 52 is sleeved on the outer surface of the fixed arm 51, the top and the bottom of the fixed arm 51 are fixedly connected with the protruding block 13, the inner wall of the movable arm 52 is provided with the sliding groove 14 matched with the protruding block 13, and the output end of the electric telescopic rod 11 is fixedly connected with the inner wall of the movable arm 52.

[0035] Through the above structure, the electric telescopic rod 11 can drive the movable arm 52 to reciprocate on the fixed arm 51, adjust the length of the mechanical arm 5, increase the operable range of the robot in the working space, and use more flexibly.

[0036] Embodiment three

[0037] Combining embodiment one and embodiment two, please refer to Figure 1 , Figure 4 and Figure 5 As shown in the specific improvement: the end of the mechanical arm 5 is provided with a welding gun 15, the two sides of the welding gun 15 are fixedly connected with the first flange plate 16, the two sides of the end of the mechanical arm 5 are fixedly connected with the second flange plate 17, and the first flange plate 16 and the second flange plate 17 are fixedly connected through the locking mechanism 18.

[0038] The locking mechanism 18 includes the mounting rod 181 fixed on the surface of the first flange plate 16, the surface of the second flange plate 17 is fixedly connected with the annular plate 182, the two sides of the annular plate 182 are threadedly penetrated by the screw rod 183, one end of the screw rod 183 is rotatably connected with the arc-shaped plate 184, the inner side of the arc-shaped plate 184 is fixedly connected with the clamping block 185, the surface of the mounting rod 181 is provided with the clamping groove 186 matched with the clamping block 185, the top and the bottom of the inner wall of the annular plate 182 are fixedly connected with the arc-shaped block 187 matched with the mounting rod 181, for supporting and limiting the mounting rod 181, and the surface of the screw rod 183 and the outer side of the annular plate 182 are sleeved with the anti-loosening washer 188, to improve the stability of the screw rod 183.

[0039] Through the above structure, the locking mechanism 18 can connect the welding gun 15 and the mechanical arm 5, and the disassembly and assembly are more simple and fast, without the help of external special tools, so that the welding gun 15 can be maintained or replaced, and the working efficiency is improved.

[0040] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art, and the model parameters of each electric appliance are not specifically limited, and the conventional equipment matched with the equipment can be used.

[0041] When the worker needs to move the multi-axis welding robot 2, the electromagnetic chuck 10 is first released from the multi-axis welding robot 2, and then the motor 42 is started to drive the fixed rod 43 to rotate, the fixed rod 43 drives the double-layer pulley 44 to rotate, the double-layer pulley 44 drives the single-layer pulley 47 on both sides to rotate through the belt 48, thereby driving the threaded rod 46 to rotate, under the guidance of the sliding block 8, the threaded sleeve 7 will displace relative to the threaded rod 46, thereby pushing the universal wheel 3 at the bottom of the backing plate 9 to extend from the inside of the base 1, so that the multi-axis welding robot 2 and the base 1 can be moved through the universal wheel 3, when the multi-axis welding robot 2 moves to a specified position, the universal wheel 3 can be retracted according to the reverse operation;

[0042] During use of the mechanical arm 5, the electric telescopic rod 11 is started to drive the movable arm 52 to reciprocate on the fixed arm 51, and the protrusion 13 moves back and forth in the sliding groove 14, thereby adjusting the length of the mechanical arm 5, and the operable range of the robot in the working space can be increased.

[0043] When the mechanical arm 5 is connected with the welding gun 15, the mounting rod 181 passes through the second protruding plate 17 and the annular plate 182, and then the screw rod 183 is rotated to drive the clamping block 185 into the clamping groove 186 of the mounting rod 181 through the arc-shaped plate 184, thereby limiting the mounting rod 181, so as to connect and fix the mechanical arm 5 with the welding gun 15, and vice versa, the clamping block 185 is moved out of the clamping groove 186, so that the welding gun 15 can be disassembled.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A steel structure welding robot, comprising a base (1) and a multi-axis welding robot (2), characterized in that: Also includes: Four casters (3) are set inside the base (1); Two adjustment mechanisms (4) are fixed on both sides of the top of the base (1) respectively, and are used to drive the caster wheel (3) in and out of the base (1). A robotic arm (5) is set on one side of a multi-axis welding robot (2). The robotic arm (5) includes a fixed arm (51) and a movable arm (52) set outside the fixed arm (51) by a drive assembly. The end of the robotic arm (5) is provided with a welding gun (15), and a first protruding plate (16) is fixedly connected to both sides of the welding gun (15). A second protruding plate (17) is fixedly connected to both sides of the end of the robotic arm (5). The first protruding plate (16) and the second protruding plate (17) are fixedly connected by a locking mechanism (18). The locking mechanism (18) includes a mounting rod (181) fixed to the surface of the first convex plate (16), an annular plate (182) fixedly connected to the surface of the second convex plate (17), and screws (183) threaded through both sides of the annular plate (182). An arc plate (184) is rotatably connected to one end of the screw (183), and a locking block (185) is fixedly connected to the inner side of the arc plate (184). A slot (186) adapted to the locking block (185) is opened on the surface of the mounting rod (181). The top and bottom of the inner wall of the annular plate (182) are fixedly connected with arc-shaped blocks (187) that are compatible with the mounting rod (181), and the surface of the screw (183) and the outer side of the annular plate (182) are fitted with anti-loosening gaskets (188).

2. The steel structure welding robot according to claim 1, characterized in that: The adjustment mechanism (4) includes a convex shell (41), a motor (42) is fixedly connected to the top of the convex shell (41), and a fixed rod (43) is fixedly connected to the output end of the motor (42). A double-layer pulley (44) is fixedly connected to one end of the fixed rod (43) that penetrates into the interior of the convex shell (41). A connecting rod (45) is rotatably connected to both sides of the top of the inner wall of the convex shell (41), and a threaded rod (46) is fixedly connected to the bottom of the connecting rod (45). A single-layer pulley (47) is fixedly connected to the surface of the connecting rod (45). The double-layer pulley (44) and the two single-layer pulleys (47) are connected by a belt (48).

3. The steel structure welding robot according to claim 2, characterized in that: The base (1) has cavities (6) on both sides inside. The threaded rod (46) is threaded with a threaded sleeve (7). Both sides of the threaded sleeve (7) are slidably connected to the inner wall of the cavity (6) through a slider (8). The bottom of the threaded sleeve (7) is fixedly connected with a pad (9), and the bottom of the pad (9) is fixedly connected to the top of the universal wheel (3).

4. A steel structure welding robot according to claim 1, characterized in that: Electromagnetic chucks (10) are fixedly connected to both sides of the base (1), and the multi-axis welding robot (2) is set on the top of the base (1).

5. A steel structure welding robot according to claim 1, characterized in that: The drive assembly includes an electric telescopic rod (11), a cavity (12) is provided inside the fixed arm (51), the electric telescopic rod (11) is fixed to one side of the inner wall of the cavity (12), the movable arm (52) is sleeved on the outer surface of the fixed arm (51), and protrusions (13) are fixedly connected to the top and bottom of the fixed arm (51). The inner wall of the movable arm (52) is provided with a sliding groove (14) that matches the protrusions (13), and the output end of the electric telescopic rod (11) is fixedly connected to the inner wall of the movable arm (52).

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