A laser welding robot for metal parts in bridge construction

Abstract

This invention discloses a laser welding robot for metal components in bridge construction, specifically relating to the field of welding technology. It includes a first baffle, with a mounting frame fixedly connected to its upper end. A rotating mechanism is located on one side of the mounting frame, and a grinding mechanism is located on one side of the rotating mechanism. A sliding rotation mechanism is fixedly connected to one side of the mounting frame. A conveying mechanism is fixedly connected to the upper end of the first baffle. A motor drives a first rotating drum to rotate via its motor shaft. A first track groove and a second track groove rotate with the first rotating drum. When the second limiting rod moves in the c-d segment, the first limiting rod moves in the e-f segment, causing the sleeve to rotate counterclockwise by 90 degrees via the second limiting rod. This, in turn, causes the rotating block to rotate by 90 degrees via the second sliding rod, rotating the laser welder to face upwards.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and more specifically, to a laser welding robot for metal parts in bridge construction. Background Art

[0002] A protective layer is required on the outside of metal parts for bridge construction. The protective layer is usually welded by first covering it and then welding it. The existing laser welding robots for metal parts for bridge construction can only realize a single welding function and cannot automatically feed materials or automatically grind burrs, so their functionality is not strong. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a laser welding robot for metal parts for bridge construction. The technical problem to be solved by the present invention is that the existing laser welding robot for metal parts for bridge construction can only realize a single welding function, cannot automatically feed materials or automatically grind burrs, and has weak functionality.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: A bridge construction metal parts laser welding robot, comprising a first baffle, the upper end of the first baffle is fixedly connected to a mounting frame, one side of the mounting frame is provided with a rotating mechanism, one side of the rotating mechanism is provided with a grinding mechanism, one side of the mounting frame is fixedly connected to a sliding rotating mechanism, and the upper end of the first baffle is fixedly connected to a transmission mechanism;

[0005] The rotating mechanism includes a motor, and the motor is fixedly connected to the mounting frame, a motor shaft is extended from one end of the motor, a first rotating drum is fixedly connected to one end of the motor shaft, a grinding rotating drum is fixedly connected to one side of the first rotating drum, a first track groove is provided on the cylindrical outer surface of the first rotating drum, and the first track groove is divided into efgh, a second track groove is provided on the upper side of the first rotating drum, and the second track groove is divided into abcd.

[0006] In a preferred embodiment, the sliding and rotating mechanism includes a fixed frame, and the fixed frame is fixedly connected to the mounting frame, a first sliding rod is slidably connected to the fixed frame, a first limit rod is fixedly connected to one side of the first sliding rod, and the first limit rod is slidably connected to the first track groove, one end of the first sliding rod is fixedly connected to an L-shaped frame, one side of the L-shaped frame is rotatably connected to a second sliding rod, one side of the fixed frame is rotatably connected to a sleeve, and the sleeve is slidably engaged with the second sliding rod, one end of the sleeve is fixedly connected to the second limit rod, and the second limit rod is slidably connected to the second track groove, a rotating block is fixedly connected to the cylindrical outer surface of the second sliding rod, the rotating block is L-shaped, one side of the rotating block is fixedly connected to a laser welder, an incomplete gear is provided on one side of the rotating block, and there is a step between the incomplete gear and the rotating block.

[0007] In a preferred embodiment, the grinding mechanism includes a second baffle, and the second baffle is fixedly connected to the mounting frame, one side of the second baffle is fixedly connected to an arc-shaped baffle, the inner side of the arc-shaped baffle is fixedly connected to multiple groups of springs, one end of the multiple groups of springs is fixedly connected to a grinding plate, and one side of the second baffle is fixedly connected to the first baffle.

[0008] In a preferred embodiment, the conveying mechanism includes four groups of supporting legs, and a transmission roller is rotatably connected between each two groups of the supporting legs. A first conveyor belt is arranged between the two groups of the transmission rollers, a first rack is arranged on the inner side of the first conveyor belt, and the first rack is adapted to the incomplete gear, a plurality of groups of first clamping blocks are fixedly connected to the outer side of the first conveyor belt, a second conveyor belt is arranged between the two groups of the transmission rollers, a plurality of groups of second clamping blocks are arranged on the outer side of the second conveyor belt, and a plurality of groups of workpieces are arranged between the second clamping blocks and the first clamping blocks.

[0009] In a preferred embodiment, the workpiece includes a central shaft, an outer sheath is arranged outside the central shaft, an extension block is fixedly connected to one end of the central shaft, and the extension block is located between the two groups of second clamping blocks.

[0010] In a preferred embodiment, when the first limit rod moves to point e, the second limit rod just moves to point c, when the first limit rod moves to point f, the second limit rod just moves to point d, when the first limit rod moves to point g, the second limit rod just moves to point a, and when the first limit rod moves to point h, the second limit rod just moves to point b.

[0011] Technical effects and advantages of the present invention:

[0012] 1. The motor can drive the first drum to rotate through the motor shaft, and the first track groove and the second track groove rotate with the first drum. When the second limit rod moves in the cd section, the first limit rod moves in the ef section, and the sleeve is driven counterclockwise (from Figure 10 to Figure 11State) rotates 90 degrees, thereby driving the rotating block to rotate 90 degrees through the second sliding rod, so that the laser welder rotates to face upward. In the initial process of this process, since the incomplete gear will mesh with the first rack, it will drive the first clamping block to rotate one station. Similarly, when the second limit rod moves in the ab section, the first limit rod moves in the gh section, and the incomplete gear rotates clockwise to face directly upward. When the second limit rod moves in the da section, the first limit rod moves in the fg section. During this process, the first limit rod will drive the L-shaped frame to move right through the first sliding rod, thereby driving the rotating block to move to the right through the second sliding rod. Similarly, when the second limit rod moves in the bc section, the first limit rod moves in the he section, and the rotating block will move to the left. During the left movement of the rotating block, the rotating block will push the workpiece from the conveying mechanism to the top of the grinding drum to complete automatic feeding. During the right movement of the rotating block, the laser welder is started to weld the weld just below the outer sheath, thereby realizing automatic feeding and welding.

[0013] 2. When the workpiece is sent to the top of the grinding drum, it will be driven by the rotation of the grinding drum to the space between the grinding plate and the grinding drum, so as to grind the welds of the inner and outer sheaths of the workpiece. At the same time, the outer sheath wrapped around the surface of the central axis can also be shaped to a certain extent, so that the outer sheath can be close to the surface of the central axis. The workpiece after grinding and shaping is discharged from the bottom of the grinding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the present invention.

[0015] Figure 2 It is a stereogram of the present invention.

[0016] Figure 3 For the present invention Figure 1 A is an enlarged view of the middle image.

[0017] Figure 4 It is a first stereoscopic view of the rotating mechanism, the grinding mechanism and the sliding rotating mechanism of the present invention.

[0018] Figure 5 It is a first stereoscopic view of the rotating mechanism and the grinding mechanism of the present invention.

[0019] Figure 6 It is a second stereoscopic view of the rotating mechanism and the grinding mechanism of the present invention.

[0020] Figure 7 It is a stereoscopic diagram of the rotating mechanism and the sliding rotating mechanism of the present invention.

[0021] Figure 8 It is a first stereoscopic diagram of the rotating mechanism of the present invention.

[0022] Fig. 9 It is a second stereoscopic view of the rotating mechanism of the present invention.

[0023] Fig.10 This is a first state diagram of the first rotating drum and the second limiting rod of the present invention.

[0024] Fig.11 This is a second state diagram of the first rotating drum and the second limiting rod of the present invention.

[0025] Fig.12 It is a first stereoscopic view of the sliding and rotating mechanism of the present invention.

[0026] Fig.13 It is a second stereoscopic view of the sliding and rotating mechanism of the present invention.

[0027] Fig.14 It is a three-dimensional diagram of the workpiece of the present invention.

[0028] Fig.15 It is a cross-sectional view of the workpiece of the present invention.

[0029] Fig.16 It is a three-dimensional diagram of a placement box of the present invention.

[0030] The accompanying drawings are marked as follows:

[0031] 1. Rotating mechanism; 2. Conveying mechanism; 3. Grinding mechanism; 4. Sliding and rotating mechanism; 5. Support leg; 6. Transmission roller; 7. First conveyor belt; 8. First rack; 9. First clamping block; 10. Second conveyor belt; 11. Second clamping block; 12. Workpiece; 13. Mounting frame; 14. Motor; 15. First rotating drum; 16. First baffle plate; 17. Grinding rotating drum; 18. First track groove; 19. Second baffle plate; 20. Grinding plate; 21. Spring; 22. Arc baffle plate; 23. Second track groove; 24. First limiting rod; 25. First sliding rod; 26. Fixed frame; 27. L-shaped frame; 28. Second sliding rod; 29. ​​Rotating block; 30. Incomplete gear; 31. Laser welder; 32. Second limiting rod; 33. Sleeve; 34. Center axis; 35. Outer sheath; 36. Extension block. DETAILED DESCRIPTION

[0032] The present invention provides a bridge construction metal parts laser welding robot, a bridge construction metal parts laser welding robot, comprising a first baffle 16, the upper end of the first baffle 16 is fixedly connected to a mounting frame 13, a rotating mechanism 1 is arranged on one side of the mounting frame 13, a grinding mechanism 3 is arranged on one side of the rotating mechanism 1, a sliding rotating mechanism 4 is fixedly connected to one side of the mounting frame 13, and a transmission mechanism 2 is fixedly connected to the upper end of the first baffle 16;

[0033] The rotating mechanism 1 includes a motor 14, and the motor 14 is fixedly connected to the mounting frame 13. A motor shaft is extended from one end of the motor 14, and a first rotating drum 15 is fixedly connected to one end of the motor shaft. A grinding rotating drum 17 is fixedly connected to one side of the first rotating drum 15. A first track groove 18 is provided on the cylindrical outer surface of the first rotating drum 15, and the first track groove 18 is divided into efgh. A second track groove 23 is provided on the first rotating drum 15, and the second track groove 23 is divided into abcd. The motor 14 can drive the first rotating drum 15 to rotate through the motor shaft, and the first track groove 18 and the second track groove 23 rotate with the first rotating drum 15.

[0034] The sliding and rotating mechanism 4 includes a fixed frame 26, and the fixed frame 26 is fixedly connected to the mounting frame 13, a first sliding rod 25 is slidably connected in the fixed frame 26, a first limiting rod 24 is fixedly connected to one side of the first sliding rod 25, and the first limiting rod 24 is slidably connected to the first track groove 18, one end of the first sliding rod 25 is fixedly connected to an L-shaped frame 27, one side of the L-shaped frame 27 is rotatably connected to the second sliding rod 28, one side of the fixed frame 26 is rotatably connected to a sleeve 33, and the sleeve 33 is slidably engaged with the second sliding rod 28, one end of the sleeve 33 is fixedly connected to the second limiting rod 32, and the second limiting rod 32 is slidably connected to the second track groove 23, a rotating block 29 is fixedly connected to the cylindrical outer surface of the second sliding rod 28, the rotating block 29 is L-shaped, one side of the rotating block 29 is fixedly connected to a laser welder 31, one side of the rotating block 29 is provided with an incomplete gear 30, and there is a step between the incomplete gear 30 and the rotating block 29. When the first limiting rod 24 moves to point e, the second limiting rod 32 just moves to point c, when the first limiting rod 24 moves to point f, the second limiting rod 32 just moves to point d, when the first limiting rod 24 moves to point g, the second limiting rod 32 just moves to point a, when the first limiting rod 24 moves to point h, the second limiting rod 32 just moves to point b. When the second limiting rod 32 moves in the cd section, the first limiting rod 24 moves in the ef section, and the sleeve 33 is driven counterclockwise (from Figure 10 to Figure 11 State) rotates 90 degrees, thereby driving the rotating block 29 to rotate 90 degrees through the second sliding rod 28, so that the laser welder 31 rotates to face upward. In the initial process of this process, since the incomplete gear 30 will mesh with the first rack 8, it will drive the first clamping block 9 to rotate one station. Similarly, when the second limiting rod 32 moves in the ab section, the first limiting rod 24 moves in the gh section, and the incomplete gear 30 rotates clockwise to face directly upward. When the second limiting rod 32 moves in the da section, the first limiting rod 24 moves in the fg section. In this process, the first limiting rod 24 will drive the L-shaped frame 27 to move rightward through the first sliding rod 25 (reference Figure 2 ), thereby driving the rotating block 29 to move to the right through the second sliding rod 28 (refer to Figure 2), similarly, when the second limit rod 32 moves in the bc section, the first limit rod 24 moves in the he section, and the rotating block 29 moves to the left (refer to Figure 2 ).

[0035] The grinding mechanism 3 includes a second baffle 19, and the second baffle 19 is fixedly connected to the mounting frame 13, an arc-shaped baffle 22 is fixedly connected to one side of the second baffle 19, a plurality of groups of springs 21 are fixedly connected to the inner side of the arc-shaped baffle 22, a grinding plate 20 is fixedly connected to one end of the plurality of groups of springs 21, and a first baffle 16 is fixedly connected to one side of the second baffle 19; the grinding plate 20 and the grinding drum 17 can grind the welds of the outer sheath 35 in the workpiece 12, and can also shape the outer sheath 35 wrapped around the surface of the central shaft 34 to a certain extent, so that the outer sheath 35 can be close to the surface of the central shaft 34.

[0036] The transmission mechanism 2 includes four groups of support legs 5, and a transmission roller 6 is rotatably connected between each two groups of support legs 5. A first conveyor belt 7 is arranged between the two groups of transmission rollers 6. A first rack 8 is arranged on the inner side of the first conveyor belt 7, and the first rack 8 is adapted to the incomplete gear 30. Multiple groups of first clamping blocks 9 are fixedly connected to the outer side of the first conveyor belt 7. A second conveyor belt 10 is arranged between the two groups of transmission rollers 6. Multiple groups of second clamping blocks 11 are arranged on the outer side of the second conveyor belt 10. Multiple groups of workpieces 12 are arranged between the second clamping blocks 11 and the first clamping blocks 9. The first rack 8 can cooperate with the incomplete gear 30 to drive the first conveyor belt 7 to rotate, thereby driving the transmission roller 6 to rotate, so that the workpiece 12 moves back one station. A circle of strong magnets is arranged on the end face of the transmission roller 6, and there is a certain arc distance between two adjacent strong magnets. When the workpiece 12 moves back one station, the arc distance of the same strong magnet is equal to the arc distance between the two adjacent strong magnets. A strong magnet is also provided on the frame, which attracts each other with the strong magnet provided on the end face of the driving roller 6. Thus, when the workpiece 12 moves back one station at a time, the two strong magnets attract each other, which can ensure the stability of the station.

[0037] The workpiece 12 includes a central shaft 34, an outer sheath 35 is arranged outside the central shaft 34, an extension block 36 is fixedly connected to one end of the central shaft 34, and the extension block 36 is located between the two sets of second clamping blocks 11. The outer sheath 35 is an iron sheet covered on the central shaft 34, and is pre-fixed by spot welding, and the weld position is located directly below the extension block 36. The workpiece 12 is used for bridge construction.

[0038] In specific operation, the device is used to manually place the workpiece 12 between the second clamping block 11 and the first clamping block 9. Figure 1The state is the initial state, the motor 14 is started, the motor 14 can drive the first drum 15 to rotate through the motor shaft, the first track groove 18 and the second track groove 23 rotate with the first drum 15, when the second limit rod 32 moves in the cd section, the first limit rod 24 moves in the ef section, and the sleeve 33 is driven counterclockwise (from Figure 10 to Figure 11 State) rotates 90 degrees, thereby driving the rotating block 29 to rotate 90 degrees through the second sliding rod 28, so that the laser welder 31 rotates to face upward. In this initial process, since the incomplete gear 30 will engage with the first rack 8, it will drive the first clamping block 9 to rotate one station.

[0039] Then the second limit rod 32 moves to the da section, and the first limit rod 24 moves to the fg section. During this process, the first limit rod 24 will drive the L-shaped frame 27 to move right through the first sliding rod 25, thereby driving the rotating block 29 to move to the right through the second sliding rod 28. During this process, the laser welder 31 is started to weld the weld just below the outer sheath 35.

[0040] Then the second limiting rod 32 moves to the ab section, at which time the first limiting rod 24 moves in the gh section, the incomplete gear 30 rotates clockwise to face upward (90 degrees clockwise), and the rotating block 29 moves to the gap between the central axis 34 and the second clamping block 11.

[0041] Then the second limit rod 32 moves to the bc section, at this time the first limit rod 24 moves in the he section, the rotating block 29 will move to the left, and during the left movement of the rotating block 29, the rotating block 29 will push the workpiece 12 from the conveying mechanism 2 to the top of the grinding drum 17 (in this process, when the workpiece 12 is pushed and moved, there is a certain inertia, and eventually the workpiece 12 will completely break away from the conveying mechanism 2 and then enter the top of the grinding drum 17).

[0042] The above process is repeated to realize the automatic transfer of the workpiece 12. The workpiece 12 sent to the top of the grinding drum 17 will be driven by the rotation of the grinding drum 17 to between the grinding plate 20 and the grinding drum 17, so as to grind the weld of the outer sheath 35 in the workpiece 12. At the same time, the outer sheath 35 wrapped around the surface of the central axis 34 can also be shaped to a certain extent, so that the outer sheath 35 can be close to the surface of the central axis 34. The workpiece 12 after grinding and shaping is discharged from the bottom of the grinding mechanism 3.

[0043] The device simultaneously realizes automatic welding, transfer, grinding and shaping of the workpiece 12.

[0044] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser welding robot for metal parts in bridge construction, comprising a first baffle (16), characterized in that: The upper end of the first baffle (16) is fixedly connected to a mounting frame (13); a rotating mechanism (1) is provided on one side of the mounting frame (13); a grinding mechanism (3) is provided on one side of the rotating mechanism (1); a sliding rotating mechanism (4) is fixedly connected to one side of the mounting frame (13); and the upper end of the first baffle (16) is fixedly connected to a conveying mechanism (2); The rotating mechanism (1) comprises a motor (14), and the motor (14) is fixedly connected to the mounting frame (13); a motor shaft is extended from one end of the motor (14); a first rotating drum (15) is fixedly connected to one end of the motor shaft; a grinding rotating drum (17) is fixedly connected to one side of the first rotating drum (15); a first track groove (18) is provided on the cylindrical outer surface of the first rotating drum (15); the first track groove (18) is divided into efgh; a second track groove (23) is provided on the upper portion of the first rotating drum (15); the second track groove (23) is divided into abcd; The sliding rotation mechanism (4) comprises a fixing frame (26), and the fixing frame (26) is fixedly connected to the mounting frame (13); a first sliding rod (25) is slidably connected inside the fixing frame (26); a first limiting rod (24) is fixedly connected to one side of the first sliding rod (25); and the first limiting rod (24) is slidably connected to the first track groove (18); an L-shaped frame (27) is fixedly connected to one end of the first sliding rod (25); a second sliding rod (28) is rotatably connected to one side of the L-shaped frame (27); and a sleeve (28) is rotatably connected to one side of the fixing frame (26). The sleeve (33) is slidably engaged with the second sliding rod (28), one end of the sleeve (33) is fixedly connected with the second limiting rod (32), and the second limiting rod (32) is slidably connected with the second track groove (23), the cylindrical outer surface of the second sliding rod (28) is fixedly connected with a rotating block (29), the rotating block (29) is L-shaped, one side of the rotating block (29) is fixedly connected with a laser welder (31), one side of the rotating block (29) is provided with an incomplete gear (30), and there is a step between the incomplete gear (30) and the rotating block (29).

2. A bridge construction metal parts laser welding robot according to claim 1, characterized in that: The grinding mechanism (3) comprises a second baffle (19), and the second baffle (19) is fixedly connected to the mounting frame (13); a curved baffle (22) is fixedly connected to one side of the second baffle (19); a plurality of groups of springs (21) are fixedly connected to the inner side of the curved baffle (22); one end of the plurality of groups of springs (21) is fixedly connected to a grinding plate (20); and a first baffle (16) is fixedly connected to one side of the second baffle (19).

3. A bridge construction metal parts laser welding robot according to claim 1, characterized in that: The conveying mechanism (2) comprises four groups of supporting legs (5), a transmission roller (6) is rotatably connected between each two groups of the supporting legs (5), a first conveyor belt (7) is arranged between the two groups of the transmission rollers (6), a first rack (8) is arranged on the inner side of the first conveyor belt (7), and the first rack (8) is adapted to the incomplete gear (30), a plurality of groups of first clamping blocks (9) are fixedly connected to the outer side of the first conveyor belt (7), a second conveyor belt (10) is arranged between the two groups of the transmission rollers (6), a plurality of groups of second clamping blocks (11) are arranged on the outer side of the second conveyor belt (10), and a plurality of groups of workpieces (12) are arranged between the second clamping blocks (11) and the first clamping blocks (9).

4. A bridge construction metal parts laser welding robot according to claim 3, characterized in that: The workpiece (12) comprises a central shaft (34), an outer sheath (35) is arranged outside the central shaft (34), one end of the central shaft (34) is fixedly connected to an extension block (36), and the extension block (36) is located between the two groups of second clamping blocks (11).

5. The bridge construction metal parts laser welding robot according to claim 1, characterized in that: When the first limiting rod (24) moves to point e, the second limiting rod (32) just moves to point c; when the first limiting rod (24) moves to point f, the second limiting rod (32) just moves to point d; when the first limiting rod (24) moves to point g, the second limiting rod (32) just moves to point a; and when the first limiting rod (24) moves to point h, the second limiting rod (32) just moves to point b.

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