Double gun horizontal seam welding machine for boom cylinder

Abstract

A double-gun horizontal seam bottom welding machine for a boom cylinder includes a base frame plate, weldment positioning seats arranged side by side are installed on the base frame plate, weldment clamping seats are installed at both ends of the base frame plate in the length direction, the weldment clamping seats can move along the length direction of the base frame plate, and each weldment clamping seat is installed with a chuck that can be lifted vertically, and the chuck can clamp and rotate the weldment. The base frame and the weldment positioning seat thereon, a movable weldment clamping seat is arranged on the base frame, a chuck that can be lifted vertically is arranged on the weldment clamping seat, the chuck can clamp and rotate the weldment, and movable welding mechanisms are arranged on both sides of the base frame in the length direction, and the welding mechanisms on both sides can weld the welds on both sides of the weldment at the same time, which not only improves the efficiency of the welding operation, but also avoids deformation and arching caused by single-side welding, ensures the quality of the overall welding, and ensures the qualified performance of the boom.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a boom cylinder double-gun transverse seam rooting welding machine. Background Art

[0002] The boom is an important component of lifting equipment and plays an essential role in bearing weight. It is usually welded from two symmetrical arc-shaped parts into a cylindrical shape. The current processing technology is to perform spot welding between the two welded parts in advance, and then weld the welds on both sides in turn. The above processing method not only has low welding efficiency, but also after welding the weld on one side, the weld position on the other side is prone to deformation and arching due to its own thermal stress and other reasons, which is not conducive to subsequent welding operations, and the processing quality of the overall boom cannot be guaranteed. Summary of the invention

[0003] The purpose of the present invention is to provide a boom cylinder double-gun transverse seam rooting welding machine, which can realize the synchronous welding operation of the welds on both sides of the boom cylinder, improve the welding efficiency, ensure the welding quality, and solve the problems in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a boom cylinder double-gun transverse seam base welding machine, including a base frame plate, side-by-side weld positioning seats are installed on the base frame plate, weldment clamping seats are installed at both ends of the base frame plate in the length direction, the weldment clamping seats can move along the length direction of the base frame plate, each weldment clamping seat is installed with a chuck that can be lifted vertically, the chuck can clamp and rotate the weld to position, side-by-side columns are arranged on both sides of the length direction of the base frame plate, a guide rail frame is installed on the top of the column, the guide rail frame is arranged parallel to the base frame, each guide rail frame is cooperated with a sliding plate, the sliding plate can move along the length direction of the guide rail frame, an inner extension frame is installed on the sliding plate, a welding mechanism that can be lifted vertically and moved horizontally is installed on the inner extension frame, and the welding mechanisms on both sides can simultaneously weld the welds on both sides of the weldment. The weldment positioning seat includes a positioning seat frame, a first screw rod arranged laterally is installed in the positioning seat frame, clamping sliding blocks are installed at both ends of the length direction of the first screw rod, a nut matching the first screw rod is installed in the clamping sliding block, the rotation directions of the nuts at both ends are opposite, a positioning clamping frame is installed on the clamping sliding block, a guide plate is installed on the positioning seat frame between the positioning clamping frame and the clamping sliding block, guide blocks are arranged on both sides of the clamping sliding block, guide grooves matching the guide blocks are opened inside the side walls of the positioning seat frame, and a first motor is also installed in the positioning seat frame, the output shaft of the first motor is connected to the first screw rod through a transmission device, and the first motor can drive the positioning clamping frames on both sides to move closer or farther when started. A vertically arranged second screw rod is installed in the weldment clamping seat, a second motor is installed on the top of the weldment clamping seat, the output shaft of the second motor is connected to the second screw rod, vertically arranged vertical slide rails are installed on the opposite sides of the two weldment clamping seats, a vertical plate is installed on the vertical slide rails, a vertical sliding block matching with the vertical sliding rail is provided on one side of the vertical plate, a chuck is installed on the other side of the vertical plate, a nut matching with the second screw rod is also installed on the vertical plate, and the second motor can drive the chuck to rise and fall vertically when started. The welding mechanism includes a transverse plate, a transverse slide rail and a transverse rack are installed on the inner extension frame, a transverse slider matched with the transverse slide rail and a third motor are provided on the transverse plate, a transverse gear matched with the transverse rack is installed on the output shaft of the third motor, a vertical slide and a welding machine are also installed on the transverse plate, a vertical frame is installed on the slider of the vertical slide, a welding gun and a weld seam recognition laser detector are installed at the bottom of the vertical frame, and the welding gun can follow the weld seam recognition laser detector to weld the weld seam on the weldment. A protective cover is installed on the vertical frame, and the welding gun is located inside the protective cover. The welding gun is installed on the vertical frame through the first cross slide, and the weld seam recognition laser detector is installed on the vertical frame through the second cross slide. Walking pedals are installed on the outside of the two guide rail frames, and a fence is vertically arranged on the outer periphery of the walking pedal. A vertically arranged ladder is installed at one end of the walking pedal, and an arc-shaped enclosure is installed on the outer periphery of the ladder. A pad frame is installed at the bottom of the base plate, and hooks are installed on both sides of the base plate in the length direction.A fourth motor is mounted on the bottom plate of the weldment clamping seat, a first longitudinal gear is mounted on the output shaft of the fourth motor, a first longitudinal gear rack and a first longitudinal gear rail are mounted on the bottom frame plate, the first longitudinal gear rack is meshed with the first longitudinal gear, a first longitudinal gear slider matched with the first longitudinal gear rail is also mounted on the bottom plate of the weldment clamping seat, and the fourth motor can drive the weldment clamping seat to move in the length direction of the bottom frame plate when it is started. A fifth motor is mounted on the sliding plate, a second longitudinal gear rack is mounted on the output shaft of the fifth motor, a second longitudinal gear rack and a second longitudinal gear rail are mounted on the guide rail frame, the second longitudinal gear rack is meshed with the second longitudinal gear, a second longitudinal gear slider matched with the second longitudinal gear rail is also mounted on the sliding plate, and the fifth motor can drive the sliding plate to move in the length direction of the guide rail frame when it is started.

[0005] The positive effect of the present invention is that a double-gun transverse seam base welding machine for a boom cylinder body described in the present invention comprises a base frame and a weldment positioning seat thereon, a movable weldment clamping seat is arranged on the base frame, a chuck which can be vertically lifted and lowered is arranged on the weldment clamping seat, the chuck can clamp and rotate and position the weldment, movable welding mechanisms are arranged on both sides of the length direction of the base frame, the welding mechanisms on both sides can simultaneously weld the welds on both sides of the weldment, which not only improves the efficiency of the welding operation, but also avoids deformation and arching caused by single-sided welding, thereby ensuring the quality of the overall welding and ensuring the qualified performance of the boom. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0007] Figure 2 It is a front view of the present invention;

[0008] Figure 3 yes Figure 2 Left view of;

[0009] Figure 4 yes Figure 2 A top view of

[0010] Figure 5 It is a structural schematic diagram of the weldment positioning seat;

[0011] Figure 6 yes Figure 5 Middle AA section view;

[0012] Figure 7 It is a structural schematic diagram of the weldment clamping seat;

[0013] Figure 8 yes Figure 7 Middle BB section view;

[0014] Fig. 9 It is a structural diagram of a welded structure;

[0015] Fig.10 yes Fig. 9 An enlarged view of the CC section view;

[0016] Fig.11 yes Fig. 9 Enlarged view of the DD section view;

[0017] Fig.12 yes Figure 3 A partial enlarged view of middle I;

[0018] Fig.13 It is a structural schematic diagram of the weldment;

[0019] Fig.14 yes Figure 2 A partial enlarged view of middle II;

[0020] Fig.15 yes Figure 2 A partial enlarged view of middle III;

[0021] Fig.16 It is a schematic diagram of the reciprocating swing path of the welding gun on the weld of the weldment. DETAILED DESCRIPTION

[0022] The invention relates to a boom cylinder double-gun transverse seam bottom welding machine, such as Figure 1-4 As shown, it includes a base plate 1, which is set on the ground. The base plate 1 is equipped with weldment positioning seats arranged side by side. The weldment positioning seats can pre-store the weldments transported. The weldment positioning seats can be existing clamping cylinders, which can achieve clamping and fixing of the weldments.

[0023] In order to grasp the weldment and adjust the height position of the weldment, weldment clamping seats 2 are installed at both ends of the length direction of the base plate 1. The weldment clamping seats 2 can move along the length direction of the base plate 1. Each weldment clamping seat 2 is installed with a chuck 3 that can be lifted and lowered vertically. The chuck 3 can clamp and rotate the weldment for positioning.

[0024] like Fig.13 As shown, the shape of the two weldments is narrow at the top and wide at the bottom. When placed on the weldment positioning seat, the wider bottom surface needs to be at the bottom to ensure the stability of the placement. When performing the subsequent upper weld, it is necessary to use the chuck 3 to clamp and lift the two sides of the weldment and rotate it 180 degrees so that the narrower bottom surface is at the bottom position to facilitate the welding operation of the weld.

[0025] In order to realize the welding operation of the welds on both sides of the weldment, columns 4 are arranged side by side on both sides of the length direction of the base plate 1, and a guide frame 5 is installed on the top of the column 4. The guide frame 5 is arranged parallel to the base plate 1. Each guide frame 5 is equipped with a sliding plate 6, which can move along the length direction of the guide frame 5. Walking wheels or other power devices can be installed on the sliding plate 6 to realize the movement of the sliding plate 6 on the guide frame 5.

[0026] An outrigger 7 is mounted on the sliding plate 6. The outrigger 7 is located above the base plate 1 and the weldment. A welding mechanism capable of vertical lifting and horizontal movement is mounted on the outrigger 7. The welding mechanisms on both sides can weld the welds on both sides of the weldment simultaneously. The welding mechanism can be an existing welding machine with a welding gun, which is mounted on the outrigger 7 through a cross slide or a movable cylinder and other action mechanisms to adjust the position of the welding gun to adapt to weldments of different sizes and types.

[0027] When the above-mentioned boom cylinder double-gun transverse seam bottom welding machine is used for welding, the weld fixed by electric welding is first transported to the weld positioning seat by an agv trolley or other transport device, and then the weld clamping seats 2 at the front and rear ends move closer to the weld, and at the same time, the claws of the chuck 3 extend into the interior of the weld, and the claws gradually expand to form a tight clamp around the weld, and drive the weld to move up and separate from the weld positioning seat. When the weld moves to a certain height, the chuck 3 drives the weld to rotate 180 degrees, so that the narrower bottom surface is in the lower position, and the welding mechanism moves to one end of the weld, and moves to the other end of the weld driven by the sliding plate 6. The welding mechanisms on both sides perform synchronous welding operations on the welds on both sides of the weld. After welding is completed, the chuck 3 drives the weld to rotate 180 degrees in the opposite direction, so that the wider bottom surface is in the lower position and drops to the weld positioning seat, and then the welded weld is transferred to the next process by an agv trolley or other transport device. The chuck 3 may be an existing four-jaw chuck or a multi-jaw chuck, which can achieve stable clamping of the weldment.

[0028] Furthermore, in order to achieve a more stable pre-clamping and positioning of the weldment, as Figure 5 and Figure 6 As shown, the weldment positioning seat includes a positioning seat frame 8, which is fixedly arranged on the base plate 1. A transversely arranged first screw rod 9 is installed in the positioning seat frame 8, and clamping sliding blocks 10 are installed at both ends of the length direction of the first screw rod 9. A nut matching the first screw rod 9 is installed in the clamping sliding block 10, and the rotation directions of the nuts at both ends are opposite. When the first screw rod 9 rotates, the clamping sliding blocks 10 on both sides can move closer or farther.

[0029] A positioning clamping frame 11 is installed on the clamping sliding block 10. The positioning clamping frame 11 extends out of the upper side of the positioning seat frame 8 and can effectively clamp and fix the weldment on the positioning seat frame 8. In order to achieve stable horizontal movement of the clamping sliding blocks 10 on both sides, a guide plate 12 is installed on the positioning seat frame 8 between the positioning clamping frame 11 and the clamping sliding block 10. Guide blocks 13 are set on both sides of the clamping sliding block 10. The side wall of the positioning seat frame 8 is provided with a guide groove that matches the guide block 13.

[0030] A first motor 14 is also installed in the positioning seat frame 8. The output shaft of the first motor 14 is connected to the first screw rod 9 through a transmission device. When the first motor 14 is started, it can drive the positioning clamping frames 11 on both sides to move closer or farther away. The transmission device can be an existing conveyor belt or gear and a matching chain, which drives the rotation of the first screw rod 9 by rotating the motor output shaft.

[0031] Furthermore, in order to realize the vertical lifting and lowering movement of the chuck 3, as Figure 7 and Figure 8 As shown, a second screw rod 15 arranged vertically is installed in the weldment clamping seat 2, and a second motor 16 is installed on the top of the weldment clamping seat 2, and the output shaft of the second motor 16 is connected to the second screw rod 15. Vertically arranged vertical slide rails 17 are installed on the opposite sides of the two weldment clamping seats 2, and a vertical plate 18 is installed on the vertical slide rails 17. A vertical slider 19 matching the vertical slide rail 17 is provided on one side of the vertical plate 18, and a chuck 3 is installed on the other side of the vertical plate 18. A screw nut matching the second screw rod 15 is also installed on the vertical plate 18. The second motor 16 can drive the chuck 3 to rise and fall vertically when it is started.

[0032] Furthermore, if Figure 9-11 As shown, the welding mechanism includes a transverse plate 20, a transverse slide rail 21 and a transverse rack 22 are installed on the inner frame 7, a transverse slider 23 and a third motor 24 are provided on the transverse plate 20, and a transverse gear 25 that matches the transverse rack 22 is installed on the output shaft of the third motor 24. When the third motor 24 is started, it can drive the transverse plate 20 and the welding mechanism thereon to move horizontally along the inner frame 7 to be suitable for weldments of different widths. A vertical slide 26 and a welding machine 27 are also installed on the transverse plate 20, a vertical frame 28 is installed on the slider of the vertical slide 26, and a welding gun 29 and a weld seam recognition laser detector 30 are installed at the bottom of the vertical frame 28. The welding gun 29 can follow the weld seam recognition laser detector 30 to weld the weld seam on the weldment.

[0033] The vertical sliding table 26 can adjust the height position of the welding gun 29, and the height position of the weldment and the weld thereon can be adaptively adjusted. The weld recognition laser detector 30 can be an existing photoelectric detector, which can identify and track the weld position on the weldment to ensure the precise welding operation of the welding gun 29 on the weld position.

[0034] Furthermore, in order to protect the welding gun 29, a protective cover 31 is installed on the vertical moving frame 28, and the welding gun 29 is located inside the protective cover 31. In order to allow the welding gun 29 to swing up and down according to the width of the weld during movement, so that the two welds can be welded and fixed more firmly, the welding gun 29 is installed on the vertical moving frame 28 through a first cross slide 32. The first cross slide 32 can adjust the relative position of the welding gun 29 according to the weld position. In order to allow the weld recognition laser detector 30 to adapt to the position of welds on different types of weldments, the weld recognition laser detector 30 is installed on the vertical moving frame 28 through a second cross slide 33. The movement of the second cross slide 33 can adjust the position of the weld recognition laser detector 30 as needed. In the process of the welding mechanism moving forward as a whole, as shown in FIG. Fig.16 As shown, the cross slide can drive the welding gun 29 to swing up and down and back and forth, allowing the welding gun 29 to move backward relative to the weld during the movement process to compensate for the welding operations of welds of different widths on the same weldment, fully fill the space in the weld, make the weld more firmly welded, and effectively improve the connection performance of the two weldments.

[0035] Furthermore, in order to facilitate the staff to conduct relevant inspections on the welding operation, a walking pedal 34 is installed on the outer side of the two guide rail frames 5, and a fence 35 is vertically arranged on the outer periphery of the walking pedal 34. A vertically arranged ladder 36 is installed at one end of the walking pedal 34, and an arc-shaped enclosure 37 is installed on the outer periphery of the ladder 36. The staff can climb from the ground to the walking pedal 34 via the ladder 36, and the staff can perform corresponding inspections and maintenance on the welding mechanism on the walking pedal 34, wherein the fence 35 and the arc-shaped enclosure 37 can play a corresponding protective role to prevent people from falling, etc.

[0036] Furthermore, a pad frame 38 is installed at the bottom of the base plate 1, and the pad frame 38 can effectively enhance the placement stability of the base plate 1. In order to facilitate the position transfer of the entire device, hooks 39 are installed on both sides of the length direction of the base plate 1, and the position transfer of the base plate 1 can be achieved by lifting equipment such as a gantry crane.

[0037] Furthermore, if Fig.14As shown, a fourth motor 40 is installed on the bottom plate of the weldment clamping seat 2, a first longitudinal shift gear 41 is installed on the output shaft of the fourth motor 40, a first longitudinal shift rack 42 and a first longitudinal shift slide rail 43 are installed on the base plate 1, the first longitudinal shift rack 42 is meshed with the first longitudinal shift gear 41, and a first longitudinal shift slider 44 matched with the first longitudinal shift slide rail 43 is also installed on the bottom plate of the weldment clamping seat 2. When the fourth motor 40 is started, it can drive the weldment clamping seat 2 to move in the length direction of the base plate 1.

[0038] Furthermore, if Fig.15 As shown, a fifth motor 45 is installed on the sliding plate 6, and a second longitudinal shift gear 46 is installed on the output shaft of the fifth motor 45. A second longitudinal shift rack 47 and a second longitudinal shift rail 48 are installed on the guide rail frame 5. The second longitudinal shift rack 47 is meshed with the second longitudinal shift gear 46. A second longitudinal shift slider 49 matched with the second longitudinal shift rail 48 is also installed on the sliding plate 6. When the fifth motor 45 is started, it can drive the sliding plate 6 to move in the length direction of the guide rail frame 5.

[0039] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A boom cylinder double-gun transverse seam rooting welding machine, characterized in that: The invention comprises a base plate (1), on which weldment positioning seats arranged in parallel are installed, weldment clamping seats (2) are installed at both ends of the base plate (1) in the length direction, the weldment clamping seats (2) can move along the length direction of the base plate (1), each weldment clamping seat (2) is installed with a chuck (3) capable of vertical lifting, the chuck (3) can clamp and rotate the weldment, columns (4) arranged in parallel are arranged on both sides of the base plate (1) in the length direction, a guide rail frame (5) is installed on the top of the column (4), the guide rail frame (5) is arranged parallel to the base plate (1), each guide rail frame (5) is matched with a sliding plate (6) installed, the sliding plate (6) can move along the length direction of the guide rail frame (5), an inner extension frame (7) is installed on the sliding plate (6), a welding mechanism capable of vertical lifting and horizontal movement is installed on the inner extension frame (7), and the welding mechanisms on both sides can simultaneously weld the welds on both sides of the weldment; The weldment positioning seat comprises a positioning seat frame (8), a first screw rod (9) arranged transversely is installed in the positioning seat frame (8), clamping sliding blocks (10) are installed at both ends of the length direction of the first screw rod (9), a screw nut matching the first screw rod (9) is installed in the clamping sliding block (10), and the screw nuts at both ends have opposite rotation directions. A positioning clamping frame (11) is installed on the clamping sliding block (10), a guide plate (12) is installed on the positioning seat frame (8) between the positioning clamping frame (11) and the clamping sliding block (10), guide blocks (13) are arranged on both sides of the clamping sliding block (10), and a guide groove matching the guide block (13) is opened inside the side wall of the positioning seat frame (8), and a first motor (14) is also installed in the positioning seat frame (8), and the output shaft of the first motor (14) is connected to the first screw rod (9) through a transmission device. When the first motor (14) is started, it can drive the positioning clamping frames (11) on both sides to move closer or farther. A second vertically arranged screw rod (15) is installed in the weldment clamping seat (2), a second motor (16) is installed on the top of the weldment clamping seat (2), the output shaft of the second motor (16) is connected to the second screw rod (15), vertically arranged vertical slide rails (17) are installed on the opposite sides of the two weldment clamping seats (2), a vertical plate (18) is installed on the vertical slide rails (17), a vertical sliding block (19) matching with the vertical slide rail (17) is provided on one side of the vertical plate (18), a chuck (3) is installed on the other side of the vertical plate (18), a nut matching with the second screw rod (15) is also installed on the vertical plate (18), and the second motor (16) can drive the chuck (3) to move vertically up and down when it is started; The welding mechanism comprises a transverse plate (20), a transverse slide rail (21) and a transverse rack (22) are installed on the inner extension frame (7), a transverse slider (23) matched with the transverse slide rail (21) and a third motor (24) are provided on the transverse plate (20), a transverse gear (25) matched with the transverse rack (22) is installed on the output shaft of the third motor (24), a vertical slide table (26) and a welding machine (27) are also installed on the transverse plate (20), a vertical frame (28) is installed on the slider of the vertical slide table (26), a welding gun (29) and a weld seam identification laser detector (30) are installed at the bottom of the vertical frame (28), and the welding gun (29) can follow the weld seam identification laser detector (30) to weld the weld seam on the weldment; A fourth motor (40) is mounted on the bottom plate of the weldment clamping seat (2), a first longitudinal shift gear (41) is mounted on the output shaft of the fourth motor (40), a first longitudinal shift rack (42) and a first longitudinal shift slide rail (43) are mounted on the bottom frame plate (1), the first longitudinal shift rack (42) meshes with the first longitudinal shift gear (41), a first longitudinal shift slide rail (44) matched with the first longitudinal shift slide rail (43) is also mounted on the bottom plate of the weldment clamping seat (2), and the fourth motor (40) can drive the weldment clamping seat (2) to move in the length direction of the bottom frame plate (1) when it is started; A fifth motor (45) is mounted on the sliding plate (6), a second longitudinal shift gear (46) is mounted on the output shaft of the fifth motor (45), a second longitudinal shift rack (47) and a second longitudinal shift rail (48) are mounted on the guide rail frame (5), the second longitudinal shift rack (47) meshes with the second longitudinal shift gear (46), and a second longitudinal shift slider (49) matched with the second longitudinal shift rail (48) is also mounted on the sliding plate (6). When the fifth motor (45) is started, it can drive the sliding plate (6) to move in the length direction of the guide rail frame (5).

2. The boom cylinder double-gun transverse seam rooting welding machine according to claim 1 is characterized in that: A protective cover (31) is installed on the vertical moving frame (28), a welding gun (29) is located in the protective cover (31), the welding gun (29) is installed on the vertical moving frame (28) via a first cross slide (32), and a weld seam identification laser detector (30) is installed on the vertical moving frame (28) via a second cross slide (33).

3. The boom cylinder double-gun transverse seam rooting welding machine according to claim 1 is characterized by: A walking pedal (34) is installed on the outer sides of the two guide rail frames (5), a fence (35) is vertically arranged on the outer periphery of the walking pedal (34), a vertically arranged ladder (36) is installed on one end of the walking pedal (34), and an arc-shaped enclosure (37) is installed on the outer periphery of the ladder (36).

4. The boom cylinder double-gun transverse seam rooting welding machine according to claim 1 is characterized in that: A backing plate frame (38) is installed at the bottom of the base plate (1), and hooks (39) are installed on both sides of the base plate (1) in the length direction.

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