Welding device and welding method for working device of loading machine

Abstract

The invention discloses a loader working device welding device and method.The loader working device welding device comprises a loading table, a heightening frame, a sliding block table and a movable rotating arm, in the using process, when the sliding block table moves, the movable rotating arm and an inserting column part can be driven to drive a bucket seat to move to the welding position, and the bucket seat is welded to the loading table; therefore, the positions of the bucket seats are calibrated, it is guaranteed that the pressure borne by the multiple sets of installed bucket seats is uniform, an operator can drive a pressing arm shaft, the pressing arm shaft rotates to drive a jacking arm part to rotate, and the jacking arm rotates to conduct rotary pressing from the top area of the back face of the bucket seat through a pressing arm rod; the top end area of the bucket seat is tightly attached to the back face of the bucket, the bucket seat is tightly attached to the top end area of the bucket, the bucket seat can be gradually attached to the bottom of the back face of the bucket along with continuous lifting of the top disc plate till the top disc plate completes complete locking of the bottom of the bucket seat, and it is guaranteed that the bucket seat is tightly attached to the bottom area of the bucket. And the welding effect of the bottom area of the bucket seat is further ensured.

Description

Technical Field

[0001] The invention relates to the technical field of loader welding, and in particular to a loader working device welding device and a welding method. Background Art

[0002] Loaders are earthwork machines widely used in construction projects such as roads, railways, buildings, hydropower, ports, and mines. They are mainly used to shovel bulk materials such as soil, sand, lime, and coal, and can also do light shoveling and digging of mines. By replacing different auxiliary working devices, they can also perform bulldozing, lifting, and loading and unloading of other materials such as wood.

[0003] The loader is used to shovel, load, unload and transport bulk materials such as soil and stone through the cooperation of the bucket and the shovel arm. It can also perform light excavation operations on rocks and hard soil. If different working devices are replaced, it can also complete the work of bulldozing, lifting, loading and unloading other materials. In highway construction, it is mainly used for filling and excavation of roadbed engineering, and the collection and loading of asphalt and cement concrete yards. Because it has the advantages of fast operation speed, good maneuverability and easy operation, it has developed rapidly and become the main machine in earthwork construction. At the same time, in the construction of roads, especially high-grade highways, loaders are used for filling and excavation of roadbed engineering, the collection and loading of asphalt mixture and cement concrete yards. In addition, it can also carry out operations such as pushing soil, leveling the ground and towing other machinery. Because the loader has the advantages of fast operation speed, high efficiency, good maneuverability and easy operation, it has become one of the main machines for earthwork construction in engineering construction.

[0004] Since construction machinery is a special vehicle, operators should receive training and guidance from the manufacturer, have a full understanding of the structure and performance of the machine, and gain certain operation and maintenance experience before operating the machine. The "Product Use and Maintenance Manual" provided by the manufacturer is an essential document for operators to operate the equipment. Before operating the machine, be sure to read the "Use and Maintenance Manual" first and perform operation and maintenance as required. Pay attention to the workload during the running-in period. Half of the workload during the running-in period should not exceed 60% of the rated workload, and an appropriate workload should be arranged to prevent the occurrence of overheating caused by long-term continuous operation of the machine. Pay attention to frequently observing the indications of various instruments. If any abnormality occurs, stop the machine in time to eliminate it. Stop the operation before the cause is found and the fault is eliminated. Pay attention to frequently checking the level and quality of lubricating oil, hydraulic oil, coolant, brake fluid, and fuel oil (water), and pay attention to checking the sealing of the entire machine. If too much oil and water are found during the inspection, the cause should be analyzed. At the same time, the lubrication of each lubrication point should be strengthened. It is recommended that during the running-in period, grease should be added to the lubrication points every shift (except for special requirements). Keep the machine clean, and adjust and tighten loose parts in time to prevent loose parts from increasing wear or loss. At the end of the running-in period, the machine should be maintained compulsorily, and inspection and adjustment should be done well, and attention should be paid to the replacement of oil. In short, the requirements for the use and maintenance of loaders during the running-in period can be summarized as: strengthen training, reduce load, pay attention to inspection, and strengthen lubrication. As long as you pay attention to and implement the maintenance and maintenance of the loader during the running-in period as required, you will reduce the occurrence of early failures, extend the service life, improve operating efficiency, and the machine will bring you more benefits.

[0005] In the prior art, the publication number "CN113441884B" discloses a robot welding device for loading mobile boom plates, which belongs to the field of robot welding technology, and includes a workbench and a bearing seat. The workbench is placed on the ground, and the bearing seat is installed above the inner bottom of the workbench. A welding device is provided on the side wall of the bearing seat, and the welding device is slidably matched with the bearing seat. The welding device includes a moving component, a welding component and a cleaning component. The moving component is installed on the side wall of the bearing seat and slidably matched with the bearing seat, the welding component is installed on the moving component and slidably matched with the moving component, and the cleaning component is fixedly installed on the welding component. The present invention can move the welding component to the welding position of the crossbeam and the ear plate through the moving component, and the welding component cooperates with the cleaning component to scrape the weld nodules generated by the welding to prevent the occurrence of welding cracks, which affect the quality of the loading mobile boom plate and its subsequent service life.

[0006] However, the existing technology still has major deficiencies, such as:

[0007] In the above-mentioned device and the prior art, the bucket surface needs to be welded and a bucket seat is added. The pin holes on the surface of the bucket seat can be used as installation channels for connecting the bucket arm. The back of the bucket is set in an irregular arc shape. If it is not possible to ensure that the surface arc-shaped cavity of the bucket seat fits tightly on the arc-shaped back of the bucket during the welding process, the welding gap between the bucket seat and the bucket will be too large, resulting in waste of welding rods and affecting the welding and installation effect of the bucket seat. Summary of the invention

[0008] The object of the present invention is to provide a welding device and a welding method for a loader working device to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for a loader working device, comprising a loading platform, an elevated frame, a slider platform and a movable rotating arm, wherein a magnetic placement cavity is arranged on the top of the loading platform, a mounting cavity is arranged on one side of the magnetic placement cavity, a fixing seat is installed on one side of the loading platform, the slider platform is arranged between adjacent fixing seats, the slider platforms are arranged in a plurality of groups at intervals, and the movable rotating arm is arranged on one side of the slider platform;

[0010] A loader bucket seat welding positioning and calibration unit, which is arranged in the movable swing arm area and is used to align and calibrate the bucket and the bucket seat before welding them to reduce the size of the weld;

[0011] The bucket seat and the bucket welding locking welding unit are arranged on one side of the movable rotating arm and are used to lock and support the position of the bucket seat at multiple points during the welding process.

[0012] Preferably, the loader bucket seat welding positioning and calibration unit includes a moving part, the moving part includes a limiting slide bar, the limiting slide bar is installed between adjacent fixed seats, a linear guide rail is installed on one side of the loading platform near the fixed seat area, a plurality of groups of moving ends are arranged on the surface of the linear guide rail, a limiting hole is arranged on the surface of the slider table, the limiting hole is movably sleeved on the surface of the limiting slide bar, a fitting cavity is arranged on one side of the slider table, the slider table is sleeved on the moving end of the linear guide rail through the fitting cavity, a primary rotating shaft is installed on one side of the slider table, and the movable rotating arm is sleeved on the rotating end of the primary rotating shaft.

[0013] Preferably, the loader bucket seat welding positioning and calibration unit also includes a bottom support part, which includes a secondary rotating shaft, which is installed on one side of the movable rotating arm, and a bottom support arm is installed on the rotating end of the secondary rotating shaft, one end of the bottom support arm is configured to be columnar, and the surface of one end of the bottom support arm is provided with an anti-slip rubber sleeve.

[0014] Preferably, the loader bucket seat welding positioning and calibration unit also includes a pressing part, which includes a pressing arm, a pressing arm shaft is provided on one side of the pressing arm, the rotating end of the pressing arm shaft is installed on one side of the movable rotating arm, and a pressing arm rod is also installed at one end of the pressing arm, and the pressing arm rod is in movably contact with the top of the bucket seat.

[0015] Preferably, the bucket seat and the bucket welding locking welding unit include a locking part, the locking part includes an insert column, the insert column is installed on one side of the movable swing arm, an annular cavity is arranged at one end of the insert column, a center column is arranged in the central area of ​​the annular cavity, a linear table is arranged in a ring outside the center column, a through groove is arranged on the outside of the annular cavity, a linear slide groove is arranged on the surface of the linear table, a linear cylinder is arranged on the inner side of the linear slide groove away from the through groove, a limiting block is installed on the movable end of the linear cylinder, and the limiting block movably passes through the through groove.

[0016] Preferably, the bucket seat and the bucket welding locking welding unit also include a tightening part, which includes a top plate, which is arranged on the top of the magnetic placement cavity, and secondary rotating seats are installed at both ends of the top plate, and a primary rotating seat is installed inside the installation cavity, and a lifting hydraulic cylinder is installed on the rotating end of the primary rotating seat, and the movable end of the lifting hydraulic cylinder is fixed to the rotating end of the secondary rotating seat.

[0017] Preferably, an inclined buffer unit is provided on one side of the bottom of the top plate.

[0018] Preferably, the inclined buffer unit includes a buffer base, the buffer base is installed on the top of the magnetic placement cavity, the buffer base is arranged in an arc shape, buffer rubber rings are installed at intervals on the surface of the buffer base, and one side of the top plate is attached to the surface of the buffer rubber ring.

[0019] Preferably, a three-stage rotating shaft is installed on one side of the movable rotating arm, an arc-shaped card table is installed on the rotating end of the three-stage rotating shaft, a bucket seat surface welding unit is installed on one side of the arc-shaped card table, and the bucket seat surface welding unit includes an arc-shaped guide rail, the arc-shaped guide rail is installed on one side of the arc-shaped card table, an arc-shaped slide groove is arranged on the surface of the arc-shaped card table, a limit block is slidably installed inside the arc-shaped slide groove, one side of the limit block is fixed to the moving end of the arc-shaped guide rail, and a welding head is installed on the surface of the limit block.

[0020] A welding method, based on the above-mentioned welding device for a loader working device, comprises the following steps:

[0021] S1: Placement: The operator places the bucket to be welded on top of the loading platform through an external overhead crane.

[0022] S2: Installation: the operator loads the bucket seat to be welded and installed onto the surface of the column for installation;

[0023] S3: Positioning: The linear guide rail can drive the slider table to drive the movable arm part to move back and forth for calibration, so that the bucket seat can reach the specified welding position;

[0024] S4: Welding: The limit block and the welding head can be operated by the provided arc guide rail to perform arc reciprocating welding installation along the butt joint position of the bucket and the bucket seat surface.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. When in use, the operator drives the linear guide rail to move. The movement of the linear guide rail will drive the slider table to move along the surface of the limit slide bar. When the slider table moves, it will drive the movable arm and the plug column part to drive the bucket seat to move to the welding position, so as to calibrate the position of the bucket seat and ensure that the pressure of multiple groups of bucket seats installed is evenly borne;

[0027] 2. When in use, the operator can drive the pressure arm shaft, and the rotation of the pressure arm shaft will drive the top pressure arm part to rotate. The rotation of the top pressure arm will rotate and press from the top area of ​​the back of the bucket seat through the pressure arm rod, so that the top area of ​​the bucket seat fits tightly against the back of the bucket, so that the bucket seat and the top area of ​​the bucket fit tightly, ensuring the welding effect of the top area of ​​the bucket seat;

[0028] 3. During use, the top of the top plate will be pressed against the bottom area of ​​the back of the bucket seat. As the top plate is continuously lifted, the bucket seat will gradually fit against the bottom of the back of the bucket until the top plate completely locks the bottom of the bucket seat, ensuring that the bucket seat fits tightly against the bottom area of ​​the bucket, further ensuring the welding effect of the bottom area of ​​the bucket seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of the device of the present invention;

[0030] Figure 2 It is a schematic diagram of the top pressure arm part in the present invention;

[0031] Figure 3 It is a schematic diagram of the movable rotating arm part in the present invention;

[0032] Figure 4 It is a schematic diagram of the slider table in the present invention;

[0033] Figure 5 It is a schematic diagram of the annular cavity part in the present invention;

[0034] Figure 6 It is a schematic diagram of the linear stage part in the present invention;

[0035] Figure 7 It is a schematic diagram of the buffer base part in the present invention;

[0036] Figure 8 It is a partial schematic diagram of the limit block in the present invention;

[0037] Fig. 9 It is a schematic diagram of the arc guide rail part of the present invention.

[0038] In the figure: 1, loading platform; 11, magnetic placement cavity; 12, installation cavity; 13, primary rotating seat; 14, lifting hydraulic cylinder; 2, heightening frame; 3, fixed seat; 31, limit slide bar; 32, linear guide rail; 4, slider table; 41, fitting cavity; 42, primary rotating shaft; 43, limit hole; 5, movable rotating arm; 51, secondary rotating shaft; 52, tertiary rotating shaft; 53, installation arm; 54, plug column; 55, annular cavity; 56, Through slot; 57, center column; 58, linear table; 581, linear slide; 582, linear cylinder; 59, limit block; 6, arc-shaped table; 61, arc-shaped slide; 62, limit block; 63, arc-shaped guide rail; 64, welding head; 7, top pressure arm; 71, pressure arm shaft; 72, pressure arm rod; 8, bottom support arm; 81, anti-slip rubber sleeve; 9, buffer base; 91, buffer rubber ring; 92, top plate; 93, secondary rotating seat. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-9 , the present invention provides a technical solution:

[0041] Embodiment 1: A welding device for a loader working device: comprising a loading platform 1, a heightening frame 2, a slider platform 4 and a movable rotating arm 5, a magnetic placement cavity 11 is arranged on the top of the loading platform 1, a mounting cavity 12 is arranged on one side of the magnetic placement cavity 11, a fixing seat 3 is installed on one side of the loading platform 1, a slider platform 4 is arranged between adjacent fixing seats 3, the slider platforms 4 are arranged in a plurality of groups at intervals, and the movable rotating arm 5 is arranged on one side of the slider platform 4;

[0042] The loader bucket seat welding positioning and calibration unit is arranged in the movable swing arm 5 area, and is used to align and calibrate the bucket and the bucket seat before welding them, so as to reduce the size of the weld;

[0043] The loader bucket seat welding positioning and calibration unit includes a moving part, which includes a limit slide bar 31, which is installed between adjacent fixed seats 3. A linear guide rail 32 is installed on one side of the loading platform 1 near the fixed seat 3. A plurality of groups of moving ends are arranged on the surface of the linear guide rail 32. A limit hole 43 is arranged on the surface of the slider table 4. The limit hole 43 is movably sleeved on the surface of the limit slide bar 31. A fitting cavity 41 is arranged on one side of the slider table 4. The slider table 4 is sleeved on the moving end of the linear guide rail 32 through the fitting cavity 41. A primary rotating shaft 42 is installed on one side of the slider table 4. The movable rotating arm 5 is sleeved on the rotating end of the primary rotating shaft 42.

[0044] The loader bucket seat welding positioning and calibration unit also includes a bottom support part, which includes a secondary rotating shaft 51. The secondary rotating shaft 51 is installed on one side of the movable rotating arm 5. A bottom support arm 8 is installed on the rotating end of the secondary rotating shaft 51. One end of the bottom support arm 8 is set to a columnar shape, and the surface of one end of the bottom support arm 8 is provided with an anti-slip rubber sleeve 81.

[0045] The loader bucket seat welding positioning and calibration unit also includes a pressing part, which includes a pressing arm 7. A pressing arm shaft 71 is provided on one side of the pressing arm 7. The rotating end of the pressing arm shaft 71 is installed on one side of the movable rotating arm 5. A pressing arm rod 72 is also installed at one end of the pressing arm 7, and the pressing arm rod 72 is in active contact with the top of the bucket seat.

[0046] In this embodiment, when the middle area of ​​the bucket seat is attached to the back of the bucket, the top of the bucket seat cannot be tightly attached to the back of the bucket. At this time, the operator can drive the pressure arm shaft 71. The rotation of the pressure arm shaft 71 will drive the top pressure arm 7 to rotate partially. The rotation of the top pressure arm 7 will rotate and press from the top area of ​​the back of the bucket seat through the pressure arm rod 72, so that the top area of ​​the bucket seat is tightly attached to the back of the bucket, so that the bucket seat and the top area of ​​the bucket are tightly attached, ensuring the welding effect of the top area of ​​the bucket seat.

[0047] Bucket seat and bucket welding locking welding unit, the bucket seat and bucket welding locking welding unit is arranged on one side of the movable rotating arm 5, and is used to lock and support the position of the bucket seat at multiple points during the welding process;

[0048] The bucket seat and the bucket welding locking welding unit include a locking part, which includes an insert column 54, which is installed on one side of the movable swing arm 5, and an annular cavity 55 is arranged at one end of the insert column 54, and a central column 57 is arranged in the central area of ​​the annular cavity 55. A linear table 58 is arranged in a ring shape outside the central column 57, and a through groove 56 is arranged on the outer side of the annular cavity 55. A linear slide groove 581 is arranged on the surface of the linear table 58, and a linear cylinder 582 is arranged on the inner side of the linear slide groove 581 away from the through groove 56. A limit block 59 is installed on the movable end of the linear cylinder 582, and the limit block 59 can move out of the through groove 56.

[0049] The bucket seat and the bucket welding locking welding unit also include a tightening part, which includes a top plate 92. The top plate 92 is arranged on the top of the magnetic placement cavity 11. Secondary rotating seats 93 are installed at both ends of the top plate 92. A primary rotating seat 13 is installed inside the installation cavity 12. A lifting hydraulic cylinder 14 is installed on the rotating end of the primary rotating seat 13. The movable end of the lifting hydraulic cylinder 14 is fixed to the rotating end of the secondary rotating seat 93.

[0050] In this embodiment, the top of the top plate 92 will be squeezed against the bottom area of ​​the back side of the bucket seat. As the top plate 92 is continuously lifted, the bucket seat will gradually fit against the bottom of the back side of the bucket until the top plate 92 completely locks the bottom of the bucket seat, thereby ensuring that the bucket seat fits tightly against the bottom area of ​​the bucket, and further ensuring the welding effect of the bottom area of ​​the bucket seat.

[0051] A three-stage rotating shaft 52 is installed on one side of the movable rotating arm 5, an arc-shaped clamping platform 6 is installed on the rotating end of the three-stage rotating shaft 52, and a bucket seat surface welding unit is installed on one side of the arc-shaped clamping platform 6.

[0052] The bucket seat surface welding unit includes an arc guide rail 63, which is installed on one side of the arc card table 6. An arc slide groove 61 is provided on the surface of the arc card table 6. A limit block 62 is slidably installed inside the arc slide groove 61. One side of the limit block 62 is fixed to the moving end of the arc guide rail 63, and a welding head 64 is installed on the surface of the limit block 62.

[0053] In this embodiment, when the bucket seat and the bucket are calibrated and fit into place, the operator can drive the arc guide rail 63. The moving end of the arc guide rail 63 will drive the limit block 62 to move during the movement, and the welding head 64 will be driven to perform uniform welding steps along the connection area between the bucket seat and the bucket.

[0054] Embodiment 2:

[0055] Based on the first embodiment, in this embodiment, it is considered that if the top area of ​​the back of the bucket seat is pressurized, the top locking effect of the bucket seat can be achieved, but the inner cavity of the bucket seat is set in an arc shape. When the top of the bucket seat is pressed, the bottom of the bucket seat will be tilted, affecting the subsequent welding effect of the bottom of the bucket seat. Therefore, in this embodiment, a tilt buffer unit is provided to avoid the above problem;

[0056] A tilt buffer unit is provided on one side of the bottom of the top plate 92 .

[0057] The tilt buffer unit includes a buffer base 9, which is installed on the top of the magnetic placement cavity 11. The buffer base 9 is arranged in an arc shape. Buffer rubber rings 91 are installed on the surface of the buffer base 9 at intervals. One side of the top plate 92 is attached to the surface of the buffer rubber ring 91.

[0058] In this embodiment, by driving the linear cylinder 582, the moving end of the linear cylinder 582 will push the limit block 59 to pass through the through groove 56. When multiple groups of limit blocks 59 are evenly extended, the multiple groups of limit blocks 59 will cooperate with the plug column 54 to completely lock the current position of the bucket seat, thereby ensuring the stability of the bucket seat during welding and ensuring the welding effect of the bucket seat and the bucket.

[0059] A welding method, based on the above-mentioned welding device for a loader working device, comprises the following steps:

[0060] S1: Placement: The operator places the bucket to be welded on top of the loading platform 1 through an external overhead crane;

[0061] S2: Installation, the operator loads the bucket seat to be welded and installed onto the surface of the plug column 54 for installation;

[0062] S3: Positioning, the linear guide rail 32 can drive the slider table 4 to drive the movable arm 5 to move back and forth for calibration, so that the bucket seat reaches the specified welding position;

[0063] S4: Welding: The arc guide rail 63 is used to operate the limit block 62 and the welding head 64 to perform arc reciprocating welding installation along the docking position of the bucket and the bucket seat surface.

[0064] Working principle: When the device is in use, the operator first hoists the bucket to the surface of the magnetic placement cavity 11 through the overhead crane. When the bucket position is calibrated and placed in place, the magnetic suction cup embedded in the surface of the magnetic placement cavity 11 will adsorb and lock the placement position of the bucket to prevent the bucket from falling off the magnetic placement cavity 11. Then the operator first loads the bucket seat to be docked and installed on the plug column 54 on one side of the movable swing arm 5. Then the operator drives the linear guide 32 to move. The movement of the linear guide 32 will drive the slider table 4 to move along the surface of the limit slide bar 31. When the slider table 4 moves, it will drive the movable swing arm 5 and the plug column 54 to partially drive the bucket seat to move to the welding position, thereby calibrating the position of the bucket seat to ensure that the pressure of the installed multiple bucket seats is uniform.

[0065] When the bucket seat is calibrated in place, the operator can drive the primary rotating shaft 42 to rotate. When the primary rotating shaft 42 rotates, it will drive the movable rotating arm 5 to rotate. When the movable rotating arm 5 rotates close to the bucket, the bucket seat on the surface of the plug column 54 installed on one side of the movable rotating arm 5 will gradually fit on the bucket surface. When the middle area of ​​the bucket seat fits to the back of the bucket, the top of the bucket seat cannot fit tightly on the back of the bucket. At this time, the operator can drive the pressure arm shaft 71. The rotation of the pressure arm shaft 71 will drive the top pressure arm 7 to rotate partially. The rotation of the top pressure arm 7 will rotate and press from the top area of ​​the back of the bucket seat through the pressure arm rod 72, so that the top area of ​​the bucket seat fits tightly on the back of the bucket, so that the bucket seat and the top area of ​​the bucket fit tightly, ensuring the welding effect of the top area of ​​the bucket seat.

[0066] When the top of the bucket seat is locked in place, in order to ensure that the bottom of the bucket seat can also fit tightly against the back of the bucket, the operator can drive the lifting hydraulic cylinder 14. The moving end of the lifting hydraulic cylinder 14 will drive the secondary rotating seat 93 to rotate and lift. The secondary rotating seat 93 is lifted together with the top plate 92. During the rotation and lifting process of the top plate 92, the top of the top plate 92 will be pressed against the bottom area of ​​the back of the bucket seat. As the top plate 92 is continuously lifted, the bucket seat will gradually fit against the bottom of the back of the bucket until the top plate 92 completes the complete locking of the bottom of the bucket seat, ensuring that the bucket seat fits tightly against the bottom area of ​​the bucket, and further ensuring the welding effect of the bottom area of ​​the bucket seat.

[0067] When the bucket seat and the bucket are calibrated and fit in place, the operator can drive the arc guide rail 63. The moving end of the arc guide rail 63 will drive the limit block 62 to move during the movement, and will drive the welding head 64 to perform uniform welding steps along the connection area between the bucket seat and the bucket. During the welding process of the bucket seat, in order to ensure the locking effect of the bucket seat, the linear cylinder 582 can be driven. The moving end of the linear cylinder 582 will push the limit block 59 to pass through the through groove 56. When multiple groups of limit blocks 59 are evenly extended, the multiple groups of limit blocks 59 will cooperate with the plug column 54 to completely lock the current position of the bucket seat, thereby ensuring the stability of the bucket seat during welding and ensuring the welding effect of the bucket seat and the bucket.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for a loader working device, characterized in that: The device comprises a loading platform (1), a heightening frame (2), a slider platform (4) and a movable rotating arm (5); a magnetic placement cavity (11) is arranged on the top of the loading platform (1); a mounting cavity (12) is arranged on one side of the magnetic placement cavity (11); a fixing seat (3) is installed on one side of the loading platform (1); the slider platform (4) is arranged between adjacent fixing seats (3); the slider platforms (4) are arranged in a plurality of groups at intervals; and the movable rotating arm (5) is arranged on one side of the slider platform (4); A loader bucket seat welding positioning and calibration unit, the loader bucket seat welding positioning and calibration unit being arranged in the region of the movable rotating arm (5) and used for butting and calibrating the bucket and the bucket seat before welding them, thereby reducing the size of the weld; A bucket seat and a bucket welding locking welding unit, wherein the bucket seat and the bucket welding locking welding unit are arranged on one side of the movable rotating arm (5) and are used to perform multi-point locking support on the position of the bucket seat during the welding process.

2. A loader working device welding device according to claim 1, characterized in that: The loader bucket seat welding positioning and calibration unit comprises a moving part, the moving part comprises a limit slide bar (31), the limit slide bar (31) is installed between adjacent fixed seats (3), a linear guide rail (32) is installed on one side of the loading platform (1) near the fixed seat (3), a plurality of groups of moving ends are arranged on the surface of the linear guide rail (32), a limit hole (43) is arranged on the surface of the slider platform (4), the limit hole (43) is movably sleeved on the surface of the limit slide bar (31), a fitting cavity (41) is arranged on one side of the slider platform (4), the slider platform (4) is sleeved on the moving end of the linear guide rail (32) through the fitting cavity (41), a primary rotating shaft (42) is installed on one side of the slider platform (4), and the movable rotating arm (5) is sleeved on the rotating end of the primary rotating shaft (42).

3. A welding device for a loader working device according to claim 2, characterized in that: The loader bucket seat welding positioning and calibration unit further comprises a bottom support portion, the bottom support portion comprising a secondary rotating shaft (51), the secondary rotating shaft (51) being mounted on one side of the movable rotating arm (5), a bottom support arm (8) being mounted on the rotating end of the secondary rotating shaft (51), one end of the bottom support arm (8) being arranged in a columnar shape, and a non-slip rubber sleeve (81) being sleeved on the surface of one end of the bottom support arm (8).

4. A welding device for a loader working device according to claim 3, characterized in that: The loader bucket seat welding positioning and calibration unit further comprises a pressing portion, the pressing portion comprising a pressing arm (7), one side of the pressing arm (7) being provided with a pressing arm shaft (71), the rotating end of the pressing arm shaft (71) being mounted on one side of the movable rotating arm (5), one end of the pressing arm (7) being further provided with a pressing arm rod (72), the pressing arm rod (72) being in active contact with the top of the bucket seat.

5. A welding device for a loader working device according to claim 4, characterized in that: The bucket seat and bucket welding locking welding unit comprises a locking part, the locking part comprises an inserting column (54), the inserting column (54) is installed on one side of the movable rotating arm (5), an annular cavity (55) is arranged at one end of the inserting column (54), a central column (57) is arranged in the central area of ​​the annular cavity (55), a linear table (58) is arranged in an annular shape outside the central column (57), a through groove (56) is arranged on the outside of the annular cavity (55), a linear slide groove (581) is arranged on the surface of the linear table (58), a linear cylinder (582) is arranged on the inner side of the linear slide groove (581) away from the through groove (56), a limit block (59) is installed on the movable end of the linear cylinder (582), and the limit block (59) is movably passed through the through groove (56).

6. A loader working device welding device according to claim 1, characterized in that: The bucket seat and the bucket welding locking welding unit also include a tightening portion, the tightening portion including a top plate (92), the top plate (92) being arranged at the top of the magnetic placement cavity (11), the top plate (92) being provided with secondary rotating seats (93) at both ends thereof, the installation cavity (12) being provided with a primary rotating seat (13), the rotating end of the primary rotating seat (13) being provided with a lifting hydraulic cylinder (14), the movable end of the lifting hydraulic cylinder (14) being fixed to the rotating end of the secondary rotating seat (93).

7. A welding device for a loader working device according to claim 1, characterized in that: A tilting buffer unit is provided on one side of the bottom of the top plate (92).

8. A welding device for a loader working device according to claim 7, characterized in that: The tilt buffer unit comprises a buffer base (9), the buffer base (9) being mounted on the top of the magnetic placement cavity (11), the buffer base (9) being arranged in an arc shape, a buffer rubber ring (91) being installed at intervals on the surface of the buffer base (9), and one side of the top plate (92) being in contact with the surface of the buffer rubber ring (91).

9. A loader working device welding device according to claim 1, characterized in that: A three-stage rotating shaft (52) is installed on one side of the movable rotating arm (5), an arc-shaped fixture (6) is installed on the rotating end of the three-stage rotating shaft (52), a bucket seat surface welding unit is installed on one side of the arc-shaped fixture (6), and the bucket seat surface welding unit includes an arc-shaped guide rail (63), the arc-shaped guide rail (63) is installed on one side of the arc-shaped fixture (6), an arc-shaped slide groove (61) is provided on the surface of the arc-shaped fixture (6), a limit block (62) is slidably installed inside the arc-shaped slide groove (61), one side of the limit block (62) is fixed to the movable end of the arc-shaped guide rail (63), and a welding head (64) is installed on the surface of the limit block (62).

10. A welding method, based on the welding device for a loader working device according to claim 9, characterized in that: The steps include: S1: placement, the operator places the bucket to be welded on top of the loading platform (1) using an external overhead crane; S2: Installation, the operator loads the bucket seat to be welded and installed onto the surface of the plug column (54) for installation; S3: Positioning, the linear guide rail (32) can be used to drive the slider table (4) to drive the movable arm (5) to move back and forth for calibration, so that the bucket seat reaches the specified welding position; S4: Welding, through the provided arc-shaped guide rail (63), the limit block (62) and the welding head (64) can be operated to perform arc-shaped reciprocating welding installation along the butt joint position of the bucket and the bucket seat surface.

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