Steel bar welding robot

Abstract

The utility model discloses a reinforcing steel bar welding robot which comprises a portal frame, a welding arm which does linear reciprocating walking motion on the portal frame, a welding head installed at the bottom of the welding arm and a protection assembly. The protection assembly comprises a fixing frame installed on the side face of the bottom end of the welding arm, a shielding cover arranged on the outer side of the welding head in a sleeving mode and a lifting electric push rod with the two ends connected with the outer surface of the fixing frame and the outer surface of the shielding cover correspondingly. The exhaust mechanism comprises a stabilizing frame connected with the fixing frame, a smoke exhaust fan installed on the stabilizing frame, a connecting pipeline and a filtering assembly, wherein the two ends of the connecting pipeline communicate with an air inlet of the smoke exhaust fan and the interior of the shielding cover correspondingly. The mechanical arm is provided with the design for shielding flashes and sparks and filtering large-particle impurities in smoke, the shielding cover shields the flashes and the sparks, the diffusion range of the welding smoke is reduced, the welding smoke penetrates through the filter element and the blocking gauze element, and the large-particle impurities in the welding smoke are filtered.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding robots, and in particular relates to a steel bar welding robot. Background Art

[0002] In the welding process of steel bar processing, in the continuous welding process of the same steel bar product, in order to ensure the efficiency and high quality of welding, robot welding equipment is generally used, and the welding robot is a conventional robot welding equipment used for workpiece welding. The welding robot has the characteristics of high precision, high quality, weld consistency and stability. The welding robot is used for steel bar welding. There are many types of welding robots, and the CNC gantry welding robot is one of them. The gantry is installed on the ground, and the manipulator controlled by the CNC moves back and forth in a straight line on the gantry. The welding head on the manipulator performs welding processing on the steel bar products fixed by the clamp placed on the ground;

[0003] When a CNC gantry welding robot welds steel products on the ground, the steel bar welding process will emit strong flashes, sparks and welding fumes. The flashes and sparks will affect the workers' eyes, and the large particles of impurities contained in the fume will pollute the environment and harm the workers. When the CNC gantry welding robot is in use, there are problems with the design of the manipulator not shielding the flashes and sparks, and filtering the large particles of impurities in the fume. For this reason, the present application proposes a steel bar welding robot. Utility Model Content

[0004] The utility model aims to provide a steel bar welding robot to solve the problems of the manipulator not shielding flashes and sparks and filtering large particles of impurities in the smoke proposed in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel bar welding robot, comprising a gantry, a welding arm that performs linear reciprocating motion on the gantry, a welding head installed at the bottom of the welding arm, and a protective assembly, wherein the protective assembly comprises a fixed frame installed on the side surface of the bottom end of the welding arm, a shielding cover sleeved on the outside of the welding head, and a lifting electric push rod connected to the fixed frame and the outer surface of the shielding cover at both ends, an exhaust mechanism is provided on the fixed frame, the exhaust mechanism comprises a stabilizing frame connected to the fixed frame, a smoke exhaust fan installed on the stabilizing frame, and a connecting pipe whose two ends are respectively connected to the air inlet of the smoke exhaust fan and the inside of the shielding cover, and a filter assembly, wherein the filter assembly comprises a smoke outlet connected to the air outlet of the smoke exhaust fan, a moving block slidably connected to the smoke outlet, and a filter element is provided inside the moving block.

[0006] Preferably, the filter element is a hollow circular tube structure, a blocking gauze is provided inside the top surface of the filter element, and the surfaces of the moving block, the filter element and the blocking gauze are flush.

[0007] Preferably, a filter element is inserted into the bottom of the filter element, the outer diameter of the filter element is the same as the inner diameter of the filter element, and the gap between the end surface of the filter element inserted into the filter element and the blocking gauze is a cavity a.

[0008] Preferably, an annular cavity b is provided on the inner wall surface of the filter element, the outer surface of the top end of the filter element inserted into the filter element contacts the cavity b, and the cavity a is connected to the cavity b.

[0009] Preferably, one end of the smoke outlet pipe away from the smoke exhaust fan outlet is a collecting port, and the collecting port includes a cone pipe connected to the moving block and a hollow ventilation pipe away from the moving block.

[0010] Preferably, the shielding cover is a three-dimensional structure of a hollow cone, and a connecting plate that matches the inclined curved surface on the outer side of the shielding cover is provided on the end of the lifting electric push rod away from the fixing frame, and a partition rod parallel to the lifting electric push rod is provided on the outer surface of the shielding cover.

[0011] Preferably, a cross arm is provided on the side of the welding arm facing away from the fixed frame, and a lifting assembly is provided on the other end of the cross arm. The lifting assembly includes a fixed beam in a vertical state, an adjusting screw penetrating the top of the fixed beam, a slider installed inside the fixed beam, and a lifting plate perpendicular to the side of the fixed beam, the adjusting screw penetrates the slider, and the end of the lifting plate that fits the side of the fixed beam is a right-angle structure, a connecting block connected to the slider penetrates the right-angle end of the lifting plate, the connecting block is slidably connected to the fixed beam, and a bolt for locking the connecting block penetrates the lifting plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the manipulator is designed to shield flashes and sparks, and filter large particles of impurities in the fume. The shielding hood shields the flashes and sparks that appear when the welding head welds steel bars, and reduces the diffusion range of the welding fume. The welding fume that enters the filter element is filtered and then passes through the blocking gauze, and the large particles of impurities in the welding fume are filtered. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 For the utility model Figure 1 The enlarged structural diagram of the middle A part;

[0016] Figure 3 It is a schematic diagram of the top view of the smoke outlet of the utility model;

[0017] Figure 4 It is a cross-sectional structural schematic diagram of the smoke outlet of the utility model;

[0018] Figure 5 For the utility model Figure 1 A schematic diagram of the enlarged structure of the middle B part;

[0019] In the figure: 1. gantry; 2. welding arm; 5. cross arm; 6. lifting assembly; 7. lifting plate; 8. smoke outlet; 9. moving block; 21. welding head; 31. fixed frame; 32. lifting electric push rod; 33. shielding cover; 41. stabilizing frame; 42. smoke exhaust fan; 43. connecting pipe; 61. fixed beam; 62. adjusting screw; 63. sliding block; 71. connecting block; 91. filter element; 331. partition rod; 911. blocking gauze; 912. filter element. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figures 1 to 5The utility model provides a technical solution: a steel bar welding robot, comprising a gantry 1, a welding arm 2 that performs linear reciprocating walking motion on the gantry 1, a welding head 21 installed at the bottom of the welding arm 2, and a protective component. The use principle of the CNC gantry robot is a conventional technical means, and this application will not be described in detail; the protective component comprises a fixed frame 31 installed on the side of the bottom end of the welding arm 2, a shielding cover 33 sleeved on the outside of the welding head 21, and a lifting electric push rod 32 connected to the outer surfaces of the fixed frame 31 and the shielding cover 33 at both ends, respectively, the fixed frame 31 of the right-angle trapezoidal structure is combined with the welding arm 2 by a conventional method, the shielding cover 33 shields the flash and sparks generated by the welding head 21 welding the steel bar, and reduces the diffusion range of the welding fume, the lifting electric push rod 32 is combined with the fixed frame 31 and the shielding cover 33 by a conventional method, the lifting electric push rod 32 is operated and becomes a shortened state, which can make the shielding cover 33 move vertically upward, and the space at the lower side of the welding head 21 becomes larger, which is convenient for taking and placing steel bars Product; An exhaust mechanism is provided on the fixed frame 31, and the exhaust mechanism includes a stabilizing frame 41 connected to the fixed frame 31, a smoke exhaust fan 42 installed on the stabilizing frame 41, and a connecting pipe 43 whose two ends are respectively connected to the air inlet of the smoke exhaust fan 42 and the inside of the shielding cover 33, and a filter assembly. The triangular structure of the stabilizing frame 41 is combined with the fixed frame 31 and the smoke exhaust fan 42 by bolts. The smoke exhaust fan 42 is started to suck the welding fume covered in the shielding cover 33. After the welding fume flows through the connecting pipe 43, it enters the smoke outlet 8 from the air outlet of the smoke exhaust fan 42, and then the welding fume is discharged. The filter assembly includes a smoke outlet 8 connected to the air outlet of the smoke exhaust fan 42, and a moving block 9 slidably connected to the smoke outlet 8. The position of the moving block 9 can be adjusted to facilitate changing the position of the filter element 91 arranged side by side in the moving block 9. The filter element 91 is provided inside the moving block 9. The filter element 91 filters large particles of impurities in the welding fume to prevent the large particles of impurities in the welding fume from polluting the environment and being inhaled into the body by the operator.

[0023] In this embodiment, the filter element 91 is a hollow circular tube structure, and a blocking gauze 911 is provided inside the top surface of the filter element 91. The surfaces of the movable block 9, the filter element 91 and the blocking gauze 911 are flush. The blocking gauze 911 covers the filter element 91 to prevent external impurities from entering the interior of the filter element 91. The blocking gauze 911 also plays a dust-proof role.

[0024] In this embodiment, a filter element 912 is inserted into the bottom of the filter element 91. The filter element 912 is a conventional stainless steel metal filter element. The filter element 912 can filter large particles of impurities in the welding fume, and the welding fume is inevitably discharged into the air. The outer diameter of the filter element 912 is the same as the inner diameter of the filter element 91. The gap between the end surface of the filter element 912 inserted into the filter element 91 and the blocking gauze 911 is cavity a. The inner wall surface of the filter element 91 is provided with an annular cavity b. The top outer surface of the filter element 912 inserted into the filter element 91 is in contact with cavity b, and cavity a is connected with cavity b. The welding fume entering the filter element 912 enters cavity b after being filtered, and then the filtered fume enters cavity a and is discharged through the blocking gauze 911.

[0025] In this embodiment, the end of the smoke outlet pipe 8 away from the outlet of the smoke exhaust fan 42 is a collecting port, which includes a conical tube connected to the moving block 9 and a hollow ventilation pipe away from the moving block 9. The diameter of the end of the collecting port away from the moving block 9 becomes smaller to prevent outside air from entering the interior of the moving block 9 and reduce dust accumulation.

[0026] In this embodiment, the shielding cover 33 is a three-dimensional structure of a hollow cone. The shielding cover 33 is a structure that is narrow at the top and wide at the bottom. The bottom end of the shielding cover 33 has a large shielding range. The end of the lifting electric push rod 32 away from the fixed frame 31 is provided with a connecting plate that matches the inclined curved surface of the outer side of the shielding cover 33. The shielding cover 33 and the connecting plate are combined by conventional methods. A partition rod 331 parallel to the lifting electric push rod 32 is provided on the outer surface of the shielding cover 33. The partition rod 331 separates the connecting pipe 43 and the lifting electric push rod 32 to prevent the connecting pipe 43 from interfering with the lifting of the lifting electric push rod 32.

[0027] In this embodiment, a cross arm 5 is provided on the side of the welding arm 2 away from the fixed frame 31, and a lifting assembly 6 is provided on the other end of the cross arm 5. The lifting assembly 6 includes a fixed beam 61 in a vertical state, an adjusting screw 62 passing through the top of the fixed beam 61, a slider 63 installed inside the fixed beam 61, and a lifting plate 7 perpendicular to the side of the fixed beam 61. The two ends of the cross arm 5 are respectively combined with the welding arm 2 and the top of the fixed beam 61 by conventional methods. The adjusting screw 62 passes through the slider 63. The adjusting screw 62 rotates to make the slider 63 vertically lift and lower, thereby changing the height position of the lifting plate 7 and the slider 63. The end of the lifting plate 7 that is in contact with the side of the fixed beam 61 is a right-angle structure. A connecting block 71 connected to the slider 63 is passed through the right-angle end of the lifting plate 7. The connecting block 71 and the slider 63 are combined into a whole by conventional methods. The lifting plate 7, the connecting block 71 and the slider 63 are lifted and lowered in the same direction. The connecting block 71 is slidably connected to the fixed beam 61, and a bolt for locking the connecting block 71 is passed through the lifting plate 7.

[0028] The working principle and use process of this utility model:

[0029] When the welding head 21 at the bottom of the welding arm 2 welds the steel bar product, the steel bar product fixed by the clamp is placed on the surface of the lifting plate 7 facing the welding head 21;

[0030] The lifting electric push rod 32 operates and becomes an extended state, so that the shielding cover 33 moves vertically downward, and the shielding cover 33 covers the outer side of the welding head 21;

[0031] Rotate the adjusting screw 62 to move the connecting block 71, the connecting block 71 and the sliding block 63 vertically upward to a suitable position;

[0032] The exhaust fan 42 is started to suck the welding fume covered in the shielding hood 33. The welding fume flows through the connecting pipe 43 and enters the fume outlet 8 from the outlet of the exhaust fan 42. Then the welding fume is discharged.

[0033] The discharged welding smoke enters the moving block 9 in the smoke outlet 8, and the smoke enters the filter element 912 in the filter element 91;

[0034] The welding fume entering the filter element 912 is filtered and then enters the cavity b. The filtered fume then enters the cavity a and then passes through the blocking gauze 911, and finally is discharged from the narrow end of the smoke outlet 8.

[0035] The sliding moving block 9 can move another filter element 912 to the inside of the smoke outlet 8, and the dirty filter element 912 and the blocking gauze 911 can be leaked out, and the dirty filter element 912 can be removed to facilitate cleaning of the filter element 912 and the blocking gauze 911;

[0036] To sum up: the robot is designed to block flashes and sparks, as well as filter large particles of impurities in the smoke. The shielding hood 33 blocks the flashes and sparks that occur when the welding head 21 welds the steel bars, and reduces the diffusion range of the welding smoke. The welding smoke that enters the filter element 912 is filtered and then passes through the blocking mesh 911, and the large particles of impurities in the welding smoke are filtered.

[0037] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar welding robot, comprising a gantry (1), a welding arm (2) that performs linear reciprocating motion on the gantry (1), and a welding head (21) mounted at the bottom of the welding arm (2), characterized in that: It also includes a protection component, which includes a fixing frame (31) installed on the side of the bottom end of the welding arm (2), a shielding cover (33) sleeved on the outside of the welding head (21), and a lifting electric push rod (32) with two ends respectively connected to the fixing frame (31) and the outer surface of the shielding cover (33); An exhaust mechanism is provided on the fixed frame (31), the exhaust mechanism comprising a stabilizing frame (41) connected to the fixed frame (31), a smoke exhaust fan (42) installed on the stabilizing frame (41), a connecting pipe (43) with two ends respectively connected to an air inlet of the smoke exhaust fan (42) and the inside of the shielding cover (33), and a filter assembly; The filter assembly comprises a smoke outlet pipe (8) connected to the air outlet of a smoke exhaust fan (42), and a moving block (9) slidably connected to the smoke outlet pipe (8), wherein a filter element (91) is provided inside the moving block (9).

2. A steel bar welding robot according to claim 1, characterized in that: The filter element (91) is a hollow circular tube structure. A blocking gauze (911) is provided inside the top surface of the filter element (91). The surfaces of the moving block (9), the filter element (91) and the blocking gauze (911) are flush.

3. A steel bar welding robot according to claim 2, characterized in that: A filter element (912) is inserted into the interior of the bottom end of the filter element (91); the outer diameter of the filter element (912) is the same as the inner diameter of the filter element (91); and the gap between the end surface of the filter element (912) inserted into the filter element (91) and the blocking gauze (911) is a cavity a.

4. A steel bar welding robot according to claim 3, characterized in that: An annular cavity b is provided on the inner wall surface of the filter element (91); the outer surface of the top end of the filter element (912) inserted into the filter element (91) contacts the cavity b, and the cavity a is communicated with the cavity b.

5. A steel bar welding robot according to claim 1, characterized in that: One end of the smoke outlet pipe (8) away from the smoke exhaust fan (42) outlet is a collecting port, and the collecting port comprises a conical tube connected to the moving block (9) and a hollow ventilation pipe away from the moving block (9).

6. A steel bar welding robot according to claim 1, characterized in that: The shielding cover (33) is a three-dimensional structure of a hollow cone, and a connecting plate that matches the outer inclined curved surface of the shielding cover (33) is provided on the end of the lifting electric push rod (32) away from the fixing frame (31), and a partition rod (331) parallel to the lifting electric push rod (32) is provided on the outer surface of the shielding cover (33).

7. A steel bar welding robot according to claim 1, characterized in that: A cross arm (5) is provided on the side of the welding arm (2) away from the fixed frame (31), and a lifting assembly (6) is provided on the other end of the cross arm (5). The lifting assembly (6) comprises a fixed beam (61) in a vertical state, an adjusting screw (62) penetrating the top of the fixed beam (61), a slider (63) installed inside the fixed beam (61), and a lifting plate (7) perpendicular to the side of the fixed beam (61), the adjusting screw (62) penetrating the slider (63), and one end of the lifting plate (7) that is in contact with the side of the fixed beam (61) is a right-angle structure, and a connecting block (71) connected to the slider (63) is penetrated on the right-angle end of the lifting plate (7), and the connecting block (71) is slidably connected to the fixed beam (61), and a bolt for locking the connecting block (71) is penetrated on the lifting plate (7).

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