An intelligent welding robot arm

Abstract

The application discloses a kind of to adopt intelligent welding robot arm, comprising: welding mechanical arm;Mounting column is fixedly arranged in the one end of welding mechanical arm along left and right direction;Supporting shaft, the front side left and right ends of the mounting column are all opened with first through hole along left and right direction, the inner chamber of the first through hole is inserted with supporting shaft;Cylindrical shell is rotationally arranged at the front side of the supporting shaft by bearing, the inner ring of the bearing is interference fit with the outer wall of the supporting shaft, and the outer ring of the bearing is fixedly arranged at the rear side of the outer wall of the cylindrical shell.The adoption intelligent welding robot arm, by being provided with interval angle adjusting mechanism, can control first hydraulic cylinder and servo motor to carry out accurate control to cylindrical shell and welding torch, the interval between two welding torches and deflection angle adjusting process is automated, effectively improve the precision and quality of welding, also can reduce the error and loss caused by manual operation.

Description

Technical Field

[0001] This invention relates to the field of intelligent welding technology, specifically to an intelligent welding robot arm. Background Technology

[0002] Intelligent welding technology, based on traditional welding techniques, introduces intelligent technologies to achieve automated, efficient, high-precision, and high-quality welding processes. It has been widely applied in current industrial production. An intelligent welding robotic arm is a robotic system with autonomous control, intelligent operation, and high-precision positioning, used to automatically complete industrial welding tasks. An intelligent welding robotic arm typically consists of a robotic arm, welding power source, control system, and sensors, enabling automated control of various welding methods and process parameters.

[0003] Various welding equipment, including welding robots, already exist in the existing technology. In traditional dual-gun welding equipment, manual adjustment is usually required to ensure the accuracy and quality of the welding point. However, this method has many defects and problems, such as inaccurate adjustment, low efficiency, susceptibility to environmental interference, and low installation flexibility in controlling the movement of the welding gun. During the welding process, the operator needs to hold the welding cap to observe the welding line, which makes it difficult to detect problems and abnormalities in a timely manner. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent welding robot arm to solve the problems in the background art, such as inaccurate adjustment of the welding torch, low efficiency, susceptibility to environmental interference, low installation flexibility in controlling the movement of the welding torch, and the need for workers to hold the welding cap to observe the welding line during the welding process, which makes it difficult to detect problems and abnormalities in a timely manner.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a smart welding robot arm, comprising:

[0006] Welding robotic arm;

[0007] The mounting column is fixedly installed at one end of the welding robotic arm in the left-right direction;

[0008] The support shaft has first through holes at both the left and right ends of the front side of the mounting column, and the support shaft is inserted into the inner cavity of the first through hole.

[0009] A cylindrical shell is rotatably mounted on the front side of the support shaft via a bearing. The inner ring of the bearing is interference-fitted with the outer wall of the support shaft, and the outer ring of the bearing is fixedly mounted on the rear side of the outer wall of the cylindrical shell.

[0010] A welding torch is located at the bottom end of the cylindrical shell, and the two welding torches on the left and right are arranged opposite each other.

[0011] A distance angle adjusting mechanism is arranged in the inner cavity of the mounting column.

[0012] A shielding assembly is arranged at one end of the welding mechanical arm and above the mounting column.

[0013] Preferably, in order to adjust the distance between the two welding torches, the distance angle adjusting mechanism comprises: a gear rotatably arranged in the inner cavity of the mounting column; guide rods fixedly arranged on the left and right sides of the inner cavity of the mounting column; a rack adaptedly sleeved with the outer wall of the guide rods and engaged with the gear; support columns fixedly arranged on the outer side of the rack, with the top ends of the support columns extending out of the upper surface of the mounting column, the support columns being sleeved with the outer wall of the guide rods, and a support shaft fixedly arranged on the front side of the support column; a first hydraulic cylinder fixedly arranged between the two support columns; an angle deflection assembly arranged at the bottom end of the mounting column; and a collision warning assembly arranged on the outer side of the mounting column.

[0014] Preferably, the two racks are arranged in coincidence with a rotation of 180 degrees relative to the gear.

[0015] Preferably, in order to adjust the deflection angle of the welding torch, the angle deflection assembly comprises: a servo motor fixedly arranged on one side of the mounting column; a lead screw locked with the servo motor output end extending into the inner cavity of the mounting column through a shaft coupling; a lead screw nut threadedly connected with the outer wall of the lead screw, with second through holes being formed on the left and right sides of the bottom end of the mounting column, the lead screw nut being adaptedly inserted into the second through holes and extending out of the lower surface of the mounting column; and a lever fixedly arranged at the front bottom end of the lead screw nut, with a sliding groove being formed on the rear side of the cylindrical shell in the up-down direction, and one end of the lever being inserted into the inner cavity of the sliding groove.

[0016] Preferably, the outer wall of the lead screw is reversely threaded on the left and right sides.

[0017] Preferably, one end of the lever is shaped as a "T" letter, and the lever is adaptedly inserted into the inner cavity of the sliding groove.

[0018] Preferably, in order to avoid collision of the mounting column, the collision warning assembly comprises: limiting columns fixedly arranged on the top ends of the left and right sides of the mounting column; an impact sensing plate fixedly arranged on the outer side of the limiting column, the impact sensing plate being electrically connected with the welding mechanical arm; a limiting rod adaptedly inserted into the outer side of the limiting column; a collision plate fixedly arranged on one end of the limiting rod extending out of the impact sensing plate; and springs fixedly arranged on the inner sides of the front and rear ends of the collision plate and the impact sensing plate, with the springs being sleeved with the outer wall of the limiting rod.

[0019] Preferably, in order to directly observe the welding line of the welding gun, the shielding assembly comprises: a fixed column, which is fixedly arranged at one end of the welding mechanical arm and inclined upward; a protective shield, which is rotatably arranged at the front side of the fixed column through a pin shaft; a second hydraulic cylinder, which is rotatably arranged on the outer wall of the fixed column through a pin shaft; and a connecting column, which is fixedly arranged at one side of the top end of the protective shield, and one end of the second hydraulic cylinder is rotatably connected with the top end of the connecting column through a pin shaft.

[0020] The intelligent welding robot arm has the advantages that:

[0021] 1、The interval angle adjusting mechanism can control the first hydraulic cylinder and the servo motor to precisely control the cylindrical shell and the welding gun, the interval and deflection angle adjusting process between the two welding guns is automated, the welding precision and quality are effectively improved, errors and losses caused by manual operation can be reduced, the anti-collision warning assembly is arranged, collision and damage of the mounting column during movement are avoided, and the welding safety is improved.

[0022] 2、The shielding assembly is arranged to rotate the protective shield above the welding gun, so that the workers can directly observe the welding process and timely find problems and abnormal conditions, and the operation convenience is improved. DETAILED DESCRIPTION

[0023] Figure 1 The figure is a structural schematic diagram of the present application;

[0024] Figure 2 The figure is a structural schematic diagram of the mounting column of the present application;

[0025] Figure 3 The figure is a front view of the mounting column of the present application;

[0026] Figure 4 The figure is a left side view of the mounting column of the present application;

[0027] Figure 5 The figure is a left view of the shielding assembly of the present application.

[0028] In the figure: 1, welding mechanical arm; 2, mounting column; 3, support shaft; 4, first through hole; 5, cylindrical shell; 6, welding gun; 7, spacing angle adjusting mechanism; 71, gear; 72, guide rod; 73, rack; 74, support column; 75, first hydraulic cylinder; 76, angle deflection assembly; 761, servo motor; 762, lead screw; 763, lead screw nut; 764, second through hole; 765, lever; 766, sliding groove; 77, anti-collision warning assembly; 771, limiting column; 772, impact sensing plate; 773, limiting rod; 774, anti-collision plate; 775, spring; 8, shielding assembly; 81, fixed column; 82, eye shield; 83, second hydraulic cylinder; 84, connecting column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] Please refer to Figures 1-5 The present application provides a technical solution: a smart welding robot arm, comprising: welding mechanical arm 1, mounting column 2, support shaft 3, first through hole 4, cylindrical shell 5, welding gun 6, spacing angle adjusting mechanism 7 and shielding assembly 8.

[0031] The mounting column 2 is fixedly arranged at one end of the welding mechanical arm 1 along the left-right direction, and the first through hole 4 is formed in the front side of the mounting column 2 along the left-right direction.

[0032] In order to support and rotate the cylindrical shell 5, the support shaft 3 is inserted into the inner cavity of the first through hole 4, the cylindrical shell 5 is rotatably arranged at the front side of the support shaft 3 through a bearing, the inner ring of the bearing is in interference fit with the outer wall of the support shaft 3, and the outer ring of the bearing is fixedly arranged at the rear side of the outer wall of the cylindrical shell 5, the welding gun 6 is arranged at the bottom end of the cylindrical shell 5, and the left and right two welding guns 6 are oppositely arranged, the spacing angle adjusting mechanism 7 is arranged in the inner cavity of the mounting column 2, and the shielding assembly 8 is arranged at one end of the welding mechanical arm 1 and above the mounting column 2.

[0033] As a preferred solution, further, the spacing angle adjusting mechanism 7 comprises: gear 71, guide rod 72, rack 73, support column 74, first hydraulic cylinder 75, angle deflection assembly 76 and anti-collision warning assembly 77.

[0034] In order to limit the movement of the support column 74, the gear 71 is rotatably arranged in the inner cavity of the mounting column 2, the left and right sides of the inner cavity of the mounting column 2 are fixedly provided with guide rods 72, the rack 73 is adaptedly sleeved with the outer wall of the guide rod 72, and the rack 73 is engaged with the gear 71. The support column 74 is fixedly arranged on the outer side of the rack 73, and the top end of the support column 74 extends out of the upper surface of the mounting column 2. The support column 74 is sleeved with the outer wall of the guide rod 72. The support shaft 3 is fixedly arranged on the front side of the support column 74. The first hydraulic cylinder 75 is fixedly arranged between the two support columns 74. The angle deflection assembly 76 is arranged at the bottom end of the mounting column 2. The anti-collision warning assembly 77 is arranged on the outer side of the mounting column 2.

[0035] As a preferred scheme, further, the two racks 73 are coincidentally arranged at 180 degrees relative to the gear 71, so that the rack 73 moves an equal distance under the driving of the gear 71.

[0036] As a preferred scheme, further, the angle deflection assembly 76 comprises a servo motor 761, a lead screw 762, a lead screw nut 763, a second through hole 764, a push rod 765 and a sliding groove 766.

[0037] In order to control the movement of the lead screw nut 763, the servo motor 761 is fixedly arranged on one side of the mounting column 2. The output end of the servo motor 761 extends into the inner cavity of the mounting column 2 and is locked with the lead screw 762 through a shaft coupling. The lead screw nut 763 is screwed with the outer wall of the lead screw 762. The bottom end of the mounting column 2 is provided with second through holes 764 on the left and right sides, and the lead screw nut 763 is adaptedly inserted into the second through holes 764 and extends out of the lower surface of the mounting column 2.

[0038] In order to control the movement of the push rod 765 and drive the movement of the cylindrical shell 5, the push rod 765 is fixedly arranged at the front bottom end of the lead screw nut 763. The rear side of the cylindrical shell 5 is provided with a sliding groove 766 in the up-down direction, and one end of the push rod 765 is inserted into the inner cavity of the sliding groove 766.

[0039] As a preferred scheme, further, the outer wall of the lead screw 762 is reversely threaded on the left and right sides, and under the action of the threaded rotating force of the outer wall of the lead screw 762, the two lead screw nuts 763 can move reversely.

[0040] As a preferred scheme, further, one end of the push rod 765 is shaped as a "T" letter, and the push rod 765 is adaptedly inserted into the inner cavity of the sliding groove 766, so as to avoid the disengagement of one end of the push rod 765 from the inner cavity of the sliding groove 766, so that the push rod 765 can stably drive the rotation of the cylindrical shell 5.

[0041] As a preferred scheme, further, the anti-collision warning assembly 77 comprises a limiting column 771, an impact sensing plate 772, a limiting rod 773, an anti-collision plate 774 and a spring 775.

[0042] In order to limit the movement of the anti-collision plate 774, the left and right top ends of the mounting column 2 are fixedly provided with limiting columns 771 on the front and back sides, the impact sensing plate 772 is fixedly arranged outside the limiting column 771, the impact sensing plate 772 is electrically connected with the welding mechanical arm 1, the limiting rod 773 is adaptively inserted with the outside of the limiting column 771, one end of the limiting rod 773 extends out of the impact sensing plate 772 and is fixedly provided with the anti-collision plate 774, and the anti-collision plate 774 located on one side of the servo motor 761 is outside the servo motor 761.

[0043] In order to limit the position of the anti-collision plate 774 and reset it, the inside front and back ends of the anti-collision plate 774 and the impact sensing plate 772 are fixedly provided with springs 775, and the springs 775 are sleeved with the outer wall of the limiting rod 773.

[0044] As a preferred solution, further, the shielding assembly 8 comprises a fixed column 81, an eye-shield mirror 82, a second hydraulic cylinder 83 and a connecting column 84.

[0045] In order to control the angle of the eye-shield mirror 82 to deflect, the fixed column 81 is fixedly arranged on one end of the welding mechanical arm 1 in an upward inclination, the eye-shield mirror 82 is rotatably arranged on the front side of the fixed column 81 through a pin shaft, the second hydraulic cylinder 83 is rotatably arranged on the outer wall of the fixed column 81 through a pin shaft, the connecting column 84 is fixedly arranged on one side of the top end of the eye-shield mirror 82, and one end of the second hydraulic cylinder 83 is rotatably connected with the top end of the connecting column 84 through a pin shaft, and the second hydraulic cylinder 83 can push the connecting column 84 to move.

[0046] The detailed connection means is a technology known in the art, and the working principle and process are mainly introduced below. The specific work is as follows.

[0047] Step one: when welding, first adjust the distance and angle between the two welding torches 6, control the first hydraulic cylinder 75 and the servo motor 761 to start, after the first hydraulic cylinder 75 starts, it can push the two supporting columns 74 to move outward at the same time, so as to drive the racks 73 to move outward stably under the limitation of the guide rods 72, so that the two racks 73 can move the same distance under the driving of the gears 71, so that the supporting columns 74 move the same distance outward, and then the supporting shafts 3 on the left and right sides drive the cylindrical shells 5 to move the same distance outward, after the servo motor 761 is controlled to start, the servo motor 761 can drive the lead screw 762 to rotate clockwise around its own axis, so as to drive the lead screw nut 763 to move, under the limitation of the second through hole 764, the lead screw nut 763 can drive one end of the push rod 765 to move outward, so that the push rod 765 drives the cylindrical shell 5 to move outward, so as to adjust the distance between the two welding torches 6;

[0048] Step two: adjust the two welding guns 6 to the appropriate spacing, so that the two welding guns 6 are moved to both sides of the workpiece, adjust the welding angle of the welding gun 6, control the lead screw 762 to rotate counterclockwise around its own axis, so that the lead screw 762 drives the lead screw nut 763 to move, and drives the push rod 765 to move inward, so that one end of the push rod 765 slides in the inner cavity of the sliding groove 766, so that the push rod 765 pushes the cylindrical shell 5, so that under the rotation of the support shaft 3, the welding angle of the welding gun 6 can be adjusted, and then the welding angle of the workpiece is adjusted while changing the spacing between the two welding guns 6, to adapt to different welding processes and workpiece requirements, improve the welding efficiency and quality;

[0049] Step three: when the mounting column 2 moves, the anti-collision plate 774 contacts the object first before the two sides of the mounting column 2 collide with the object, so that the anti-collision plate 774 moves to one side under the limitation of the limiting rod 773 and extrudes the spring 775, until the anti-collision plate 774 contacts the impact sensing plate 772 to trigger the early warning, so that the welding mechanical arm 1 stops moving to avoid damage;

[0050] Step four: during the welding process, control the second hydraulic cylinder 83 to start, the second hydraulic cylinder 83 can drive the connecting column 84 to move to one side, so that the connecting column 84 drives the eye shield 82 to deflect downward around the fixed column 81, so that the eye shield 82 shields the welding gun 6, so that the staff can directly observe the welding circuit, which is conducive to wide application.

[0051] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A smart welding robot arm comprising, Include: Welding robot arm (1); Mounting column (2) is fixedly arranged at one end of the welding robot arm (1) in left and right directions; Support shaft (3), the front side of the mounting column (2) is provided with a first through hole (4) in left and right directions, the inner cavity of the first through hole (4) is inserted with a support shaft (3); Cylindrical shell (5) is rotatably arranged at the front side of the support shaft (3), the inner ring of the bearing is interference fit with the outer wall of the support shaft (3), and the outer ring of the bearing is fixedly arranged at the rear side of the outer wall of the cylindrical shell (5); Welding torch (6) is arranged at the bottom end of the cylindrical shell (5), and the left and right two welding torches (6) are oppositely arranged; Spacing angle adjusting mechanism (7) is arranged in the inner cavity of the mounting column (2) for adjusting the spacing and angle of the welding torch (6); Shielding assembly (8) is arranged at one end of the welding robot arm (1) and above the mounting column (2); Wherein, by operating the spacing angle adjusting mechanism (7), the spacing and angle of the welding torch (6) can be adjusted, so as to adapt to different welding processes and workpiece requirements, improve the welding efficiency and quality; The spacing angle adjusting mechanism (7) comprises: Gear (71) is rotatably arranged in the inner cavity of the mounting column (2); Guide rod (72), the inner cavity of the mounting column (2) is fixedly provided with guide rod (72) on both sides; Rack (73) is adaptively connected with the outer wall of the guide rod (72), and the rack (73) is engaged with the gear (71); Support column (74) is fixedly arranged on the outer side of the rack (73), and the top end of the support column (74) extends out of the upper surface of the mounting column (2), the support column (74) is connected with the outer wall of the guide rod (72), and the support shaft (3) is fixedly arranged on the front side of the support column (74); First hydraulic cylinder (75) is fixedly arranged between the two support columns (74); Angle deflection assembly (76) is arranged at the bottom end of the mounting column (2); Anti-collision warning assembly (77) is arranged on the outer side of the mounting column (2); The angle deflection assembly (76) comprises: Servo motor (761) is fixedly arranged on one side of the mounting column (2); Lead screw (762), the output end of the servo motor (761) extends into the inner cavity of the mounting column (2) and is locked with the lead screw (762) through the shaft coupling; Lead screw nut (763) is screwed with the outer wall of the lead screw (762), the bottom end of the mounting column (2) is provided with a second through hole (764) on both sides, and the lead screw nut (763) is adaptively inserted into the second through hole (764) and extends out of the lower surface of the mounting column (2); Dial lever (765) is fixedly arranged at the front bottom end of the lead screw nut (763), the rear side of the cylindrical shell (5) is provided with a sliding groove (766) in the up and down direction, and one end of the dial lever (765) is inserted into the inner cavity of the sliding groove (766); The anti-collision warning assembly (77) comprises: Limiting column (771), the mounting column (2) is fixed on both sides of the top end of the left and right sides of the front and back sides of the limiting column (771); Impact sensing plate (772), fixedly arranged outside the limiting column (771), the impact sensing plate (772) is electrically connected with the welding mechanical arm (1); Limiting rod (773), which is adaptively inserted with the outer side of the limiting column (771); Anti-collision plate (774), one end of the limiting rod (773) extends out of the impact sensing plate (772) and is fixedly provided with an anti-collision plate (774); Spring (775), the inner side of the anti-collision plate (774) and the impact sensing plate (772) is fixedly provided with a spring (775) at both ends, and the spring (775) is sleeved with the outer wall of the limiting rod (773).

2. The intelligent welding robot arm of claim 1, wherein: Two said rack (73) relative gear (71) rotation 180 degree coincidence setting.

3. The intelligent welding robot arm of claim 2, wherein: The outer wall of the lead screw (762) is reversely provided with threads on both sides.

4. The intelligent welding robot arm of claim 3, wherein: One end of the lever (765) is shaped as a "T" letter, and the lever (765) is adaptively inserted with the inner cavity of the sliding groove (766).

5. The intelligent welding robot arm of claim 4, wherein: The shielding assembly (8) comprises: Fixed column (81), which is fixedly arranged on one end of the welding mechanical arm (1) by upwardly inclined; Eyeshield (82), which is rotatably arranged on the front side of the fixed column (81) by a pin shaft; Second hydraulic cylinder (83), which is rotatably arranged on the outer wall of the fixed column (81) by a pin shaft; Connecting column (84), fixedly arranged on one side of the top end of the eyeshield (82), and one end of the second hydraulic cylinder (83) is rotatably connected with the top end of the connecting column (84) by a pin shaft.

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