Steel structure welding robot

Abstract

The invention discloses a steel structure welding robot, and relates to the technical field of welding robots, the steel structure welding robot comprises a base and a multi-axis welding robot, and further comprises four universal wheels arranged in the base; the two adjusting mechanisms are fixed to the two sides of the top of the base correspondingly and used for driving the universal wheels to enter and exit from the base. The mechanical arm is arranged on one side of the multi-axis welding robot, the mechanical arm comprises a fixed arm and a movable arm arranged outside the fixed arm through a driving assembly, the adjusting mechanism comprises a convex shell, and a motor is fixedly connected to the top of the convex shell. And a worker relieves limitation of the electromagnetic chuck, then the threaded rod is driven to rotate through the driving mechanism, so that four sets of universal wheels in the base are driven to stretch out, the multi-axis welding robot is more convenient and efficient to move, time and labor are saved, and the labor intensity of the worker is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of welding robots, in particular to a steel structure welding robot. Background Art

[0002] With the development of science and technology, the application of steel structures in construction projects in the world is becoming more and more extensive. Welding is a very important processing technology in steel structure manufacturing. There are many kinds of equipment used for steel structure welding. Commonly used steel structure welding uses a robotic arm to clamp the welding rod for welding. Large robotic arms have a larger welding range, but large robotic arms are not easy to move. Therefore, small multi-axis robots are designed for welding work at some special construction sites. The base of the small multi-axis robot is equipped with an electromagnetic suction cup. The equipment is carried manually and then fixed with the electromagnetic suction cup at the bottom. The end shaft flange is equipped with a welding gun aimed at the welding point for welding work.

[0003] Compared with large welding robots, small multi-axis handheld welding robots are easier to move and simpler to operate. However, small welding robots still have a certain weight. Workers often weld robots frequently, especially when moving the robots over long distances. This is time-consuming and labor-intensive, and the labor intensity is high. In addition, the operating range in the workspace is usually small, resulting in a smaller welding range. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a steel structure welding robot, which solves the problem that small welding robots are time-consuming and labor-intensive in frequent welding work, especially when moving the robots over long distances, and that their operating range in the workspace is usually small.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A steel structure welding robot, including a base and a multi-axis welding robot, further comprising:

[0006] Four universal wheels are arranged inside the base;

[0007] Two adjustment mechanisms are fixed on both sides of the top of the base, respectively, and are used to drive the universal wheels in and out of the base;

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

[0009] Preferably, the adjusting mechanism includes a convex shell, the top of the convex shell is fixedly connected to a motor, and the output end of the motor is fixedly connected to a fixing rod, one end of the fixing rod that passes through the interior of the convex shell is fixedly connected to a double-layer pulley, both sides of the top of the inner wall of the convex shell are rotatably connected to connecting rods, and the bottom of the connecting rod is fixedly connected to a threaded rod, the surface of the connecting rod is fixedly connected to a single-layer pulley, and the double-layer pulley is connected to the two single-layer pulleys by belt transmission.

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

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

[0012] Preferably, the driving assembly includes an electric telescopic rod, a cavity is opened inside the fixed arm, the electric telescopic rod is fixed to one side of the inner wall of the cavity, the movable arm is sleeved on the outer surface of the fixed arm, the top and bottom of the fixed arm are fixedly connected with protrusions, the inner wall of the movable arm is opened with a sliding groove adapted to the protrusion, and the output end of the electric telescopic rod is fixedly connected to the inner wall of the movable arm.

[0013] Preferably, both sides of the welding gun are fixedly connected with a first convex plate, and both sides of the end of the robot arm are fixedly connected with a second convex plate, and the first convex plate and the second convex plate are fixedly connected by a locking mechanism.

[0014] Preferably, the locking mechanism includes a mounting rod fixed on the surface of the first convex plate, an annular plate is fixedly connected to the surface of the second convex plate, screws are threaded through both sides of the annular plate, one end of the screw is rotatably connected to an arc plate, and a clamping block is fixedly connected to the inner side of the arc plate, and a clamping groove matching the clamping block is provided on the surface of the mounting rod.

[0015] Preferably, the top and bottom of the inner wall of the annular plate are fixedly connected with arc blocks adapted to the mounting rod, and the surface of the screw rod and the outer side of the annular plate are sleeved with anti-loosening gaskets.

[0016] The present invention provides a steel structure welding robot. It has the following beneficial effects:

[0017] (1) When the multi-axis robot finishes welding a steel structure at a certain location, the worker releases the restriction of the electromagnetic suction cup and then drives the threaded rod to rotate through the adjustment mechanism, thereby driving the four sets of universal wheels inside the base to extend, thereby making the movement of the multi-axis welding robot more convenient and efficient, saving time and effort, and reducing the labor intensity of the workers.

[0018] (2) In this steel structure welding robot, the welding gun is connected to the robotic arm through a locking mechanism. Compared with the flange connection, disassembly and assembly are faster and more convenient, without the need for external special tools, thus improving work efficiency.

[0019] (3) The steel structure welding robot can drive the movable arm to reciprocate on the fixed arm through the electric telescopic rod, and the length of the mechanical arm can be adjusted, which can increase the robot's operable range in the workspace, making it more flexible to use and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the base of the present invention;

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

[0023] Figure 4 For the present invention Figure 1 A partial enlarged view of the middle A;

[0024] Figure 5 It is a cross-sectional view of the locking mechanism structure of the present invention.

[0025] In the figure: 1. base; 2. multi-axis welding robot; 3. universal wheel; 4. adjustment 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. slider; 9. pad; 10. electromagnetic suction cup; 11. electric telescopic rod; 12. cavity; 13. convex block; 14. slide groove; 15. welding gun; 16. first convex plate; 17. second convex plate; 18. locking mechanism; 181. mounting rod; 182. annular plate; 183. screw; 184. arc plate; 185. block; 186. slot; 187. arc block; 188. anti-loosening gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1

[0028] See also Figure 1 and Figure 2 As shown, the present invention provides a steel structure welding robot, including a base 1 and a multi-axis welding robot 2. Both sides of the base 1 are fixedly connected with electromagnetic chucks 10. Multiple groups of electromagnetic chucks 10 facilitate the multi-axis welding robot 2 to be fixed on the surface of the steel structure, making the welding work more stable. The multi-axis welding robot 2 is arranged on the top of the base 1, and also includes:

[0029] Four universal wheels 3 are arranged inside the base 1 to make the multi-axis welding robot 1 move more conveniently;

[0030] Two adjustment mechanisms 4 are respectively fixed on both sides of the top of the base 1, and are used to drive the universal wheel 3 to enter and exit the base 1. The adjustment mechanism 4 includes a convex shell 41 fixed on the top of the base 1, and the top of the convex shell 41 is fixedly connected to a motor 42, and the output end of the motor 42 is fixedly connected to a fixed rod 43, and one end of the fixed rod 43 that penetrates into the inside of the convex shell 41 is fixedly connected to a double-layer pulley 44, and both sides of the top of the inner wall of the convex shell 41 are rotatably connected to connecting rods 45, and the bottom of the connecting rod 45 is fixedly connected to a threaded rod 4 6, the surface of the connecting rod 45 is fixedly connected with a single-layer pulley 47, the double-layer pulley 44 and the two single-layer pulleys 47 are connected by a belt 48, the base 1 has cavities 6 on both sides, the universal wheel 3 is located inside the cavity 6, the surface of the threaded rod 46 is threadedly connected 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;

[0031] The robot arm 5 is arranged at one side of the multi-axis welding robot 2 , and includes a fixed arm 51 and a movable arm 52 arranged outside the fixed arm 51 through a driving component.

[0032] Through the arrangement of the above structure, the adjustment mechanism 4 drives the threaded rod 46 to rotate, thereby driving the four sets of universal wheels 3 inside the base 1 to extend, thereby making the movement of the multi-axis welding robot 2 more convenient and efficient, saving time and effort, and reducing the labor intensity of the staff.

[0033] Embodiment 2

[0034] Based on Example 1, please refer to Figure 1 and Figure 3 As shown, the specific improvements are as follows: the driving assembly includes an electric telescopic rod 11, a cavity 12 is opened 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, the top and bottom of the fixed arm 51 are fixedly connected with a protrusion 13, the inner wall of the movable arm 52 is opened with a slide groove 14 adapted to the protrusion 13, and the output end of the electric telescopic rod 11 is fixedly connected to the inner wall of the movable arm 52.

[0035] Through the arrangement of the above structure, the electric telescopic rod 11 can drive the movable arm 52 to reciprocate on the fixed arm 51, and adjust the length of the robot arm 5, which can increase the operable range of the robot in the workspace and make it more flexible to use.

[0036] Embodiment 3

[0037] In conjunction with Example 1 and Example 2, please refer to Figure 1 , Figure 4 and Figure 5 As shown, the specific improvements are as follows: a welding gun 15 is provided at the end of the robot arm 5, and first convex plates 16 are fixedly connected to both sides of the welding gun 15, and second convex plates 17 are fixedly connected to both sides of the end of the robot arm 5, and the first convex plate 16 and the second convex plate 17 are fixedly connected by a locking mechanism 18;

[0038] The locking mechanism 18 includes a mounting rod 181 fixed on the surface of the first convex plate 16, and a ring plate 182 is fixedly connected to the surface of the second convex plate 17. Screws 183 are threaded through both sides of the ring plate 182. One end of the screw 183 is rotatably connected to an arc plate 184, and a block 185 is fixedly connected to the inner side of the arc plate 184. A groove 186 matching the block 185 is provided on the surface of the mounting rod 181, and an arc block 187 matching the mounting rod 181 is fixedly connected to the top and bottom of the inner wall of the ring plate 182 for supporting and limiting the mounting rod 181. An anti-loosening gasket 188 is provided on the surface of the screw 183 and on the outer side of the ring plate 182 to improve the stability of the connection of the screw 183.

[0039] Through the arrangement of the above structure, the locking mechanism 18 can connect the welding gun 15 to the robot arm 5, and the disassembly and assembly are simpler and faster without the aid of external special tools, which facilitates the maintenance or replacement of the welding gun 15 and improves work efficiency.

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

[0041] During use, when the staff needs to move the multi-axis welding robot 2, first release the restriction of the electromagnetic suction cup 10 on the multi-axis welding robot 2, and then start the motor 42 to drive the fixed rod 43 to rotate, and the fixed rod 43 drives the double-layer pulley 44 to rotate, and the double-layer pulley 44 rotates the single-layer pulleys 47 on both sides through the belt 48, thereby driving the threaded rod 46 to rotate, and under the guidance of the slider 8, the threaded sleeve 7 is displaced relative to the threaded rod 46, thereby pushing the universal wheel 3 at the bottom of the pad 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, and when the multi-axis welding robot 2 moves to the specified position, according to the above reverse operation, the universal wheel 3 can be retracted;

[0042] During use of the robot arm 5, the electric telescopic rod 11 is activated to drive the movable arm 52 to reciprocate on the fixed arm 51, and the protrusion 13 moves back and forth in the slide slot 14, so as to adjust the length of the robot arm 5, thereby increasing the operable range of the robot in the workspace;

[0043] When the robot arm 5 is connected to the welding gun 15, the mounting rod 181 passes through the second convex plate 17 and the annular plate 182, and then the screw 183 is rotated to drive the block 185 into the slot 186 of the mounting rod 181 through the arc plate 184, and the mounting rod 181 is limited, so that the robot arm 5 and the welding gun 15 are connected and fixed. Conversely, the block 185 is moved out of the slot 186 to disassemble the welding gun 15.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention 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 universal wheels (3) are arranged inside the base (1); Two adjustment mechanisms (4) are respectively fixed on two sides of the top of the base (1) and are used to drive the universal wheel (3) to move in and out of the base (1); A mechanical arm (5) is arranged on one side of a multi-axis welding robot (2), and the mechanical arm (5) comprises a fixed arm (51) and a movable arm (52) arranged outside the fixed arm (51) via a driving component.

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

3. A steel structure welding robot according to claim 2, characterized in that: A cavity (6) is provided on both sides of the base (1); a threaded sleeve (7) is threadedly connected to the surface of the threaded rod (46); both sides of the threaded sleeve (7) are slidably connected to the inner wall of the cavity (6) via a slider (8); a pad (9) is fixedly connected to the bottom of the threaded sleeve (7), 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 suction cups (10) are fixedly connected to both sides of the base (1), and the multi-axis welding robot (2) is arranged on the top of the base (1).

5. A steel structure welding robot according to claim 1, characterized in that: The driving assembly comprises 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), the top and bottom of the fixed arm (51) are fixedly connected with a protrusion (13), the inner wall of the movable arm (52) is provided with a sliding groove (14) adapted to the protrusion (13), and the output end of the electric telescopic rod (11) is fixedly connected to the inner wall of the movable arm (52).

6. A steel structure welding robot according to claim 1, characterized in that: A welding gun (15) is provided at the end of the mechanical arm (5), and first convex plates (16) are fixedly connected to both sides of the welding gun (15). Second convex plates (17) are fixedly connected to both sides of the end of the mechanical arm (5), and the first convex plate (16) and the second convex plate (17) are fixedly connected via a locking mechanism (18).

7. A steel structure welding robot according to claim 6, characterized in that: The locking mechanism (18) comprises a mounting rod (181) fixed on the surface of the first convex plate (16); an annular plate (182) is fixedly connected to the surface of the second convex plate (17); screw rods (183) are threadedly penetrated on both sides of the annular plate (182); one end of the screw rod (183) is rotatably connected to an arc plate (184); a clamping block (185) is fixedly connected to the inner side of the arc plate (184); and a clamping groove (186) adapted to the clamping block (185) is provided on the surface of the mounting rod (181).

8. A steel structure welding robot according to claim 7, characterized in that: The top and bottom of the inner wall of the annular plate (182) are fixedly connected with arc blocks (187) adapted to the mounting rod (181), and an anti-loosening gasket (188) is sleeved on the surface of the screw rod (183) and located on the outer side of the annular plate (182).

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