A welding device for producing mining vehicle bucket

Abstract

The invention discloses a welding device for producing a mining vehicle bucket, which relates to the technical field of mining vehicle welding, and comprises a workbench and a frame arranged on the workbench, wherein a multi-axis welding mechanism is arranged at the bottom of the frame, a fixed platform for placing the bucket is arranged on the workbench, a scissor-type lifting platform is arranged at the middle position of the top of the fixed platform, two auxiliary positioning components for auxiliary fixing of reinforcing ribs on both sides of the bucket are symmetrically arranged on both sides of the top of the fixed platform, and all the telescopic fixing parts are pushed to move to contact the side walls of the workpiece by a gas drive part, and the workpiece is pushed so that the workpiece placed horizontally and the workpiece placed vertically are pressed tightly, so that the joint between the two is tightly fitted, and the combination of side contact and adsorption can reduce the deformation of the workpiece during welding, improve the stability of the workpiece when it is placed, and avoid the workpiece from being offset during the welding process, which greatly affects the problem of welding accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of mining vehicle welding, and in particular to a welding device for producing a mining vehicle bucket. Background Art

[0002] Mining trucks are heavy-duty dump trucks used in open-pit mines to complete rock and earth stripping and ore transportation tasks. Their working characteristics are short travel distance and heavy load. They are usually loaded with large electric shovels or hydraulic shovels and travel back and forth between the mining point and the unloading point. In order to meet the characteristics of heavy load, in addition to using thickened steel plates, array-distributed reinforcement ribs are also used outside the steel plates to meet the strength requirements, thereby improving their strength and meeting the requirements of heavy load.

[0003] The invention patent with the existing patent announcement number CN118218867B discloses a multi-axis linkage welding device for welding a mining truck bucket. It includes a workbench and a frame arranged on one side of the workbench, an extension rod is arranged on the frame, and a multi-degree-of-freedom manipulator is arranged on the extension rod, and the multi-degree-of-freedom manipulator is slidably arranged on the extension rod. This patent utilizes the characteristics of the array distribution of the reinforcement ribs of the mining truck bucket, and improves the structure of the terminal output of the existing multi-degree-of-freedom manipulator into a multi-axis welding mechanism, so that it forms a double welding gun structure, and then when it welds the reinforcement ribs of the array structure, it can improve the welding efficiency, thereby improving the production efficiency of the entire mining truck bucket.

[0004] However, the above patent still has the following problems: although the above patent can form a double welding gun structure by setting a multi-axis welding mechanism, and then weld the reinforcement ribs of the array structure, when the device welds the reinforcement ribs of the bucket, due to the large size of the mining truck bucket, the device can only adsorb and fix the reinforcement ribs placed flat on the workbench by electromagnet adsorption, and cannot ensure that the welding point between the two is in a close contact state, which is not convenient for users to perform precise welding. When welding the reinforcement ribs of the car body or the car body and its sides, it needs to be done separately, which has poor practicality. Summary of the invention

[0005] The object of the present invention is to provide a welding device for producing a mining vehicle bucket to solve the above-mentioned problems.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A welding device for producing a mining vehicle bucket comprises a workbench and a frame arranged on the workbench, a multi-axis welding mechanism is arranged at the bottom of the frame, a fixed platform for placing the bucket is arranged on the workbench, a scissor-type lifting platform is arranged at the middle position on the top of the fixed platform, two auxiliary positioning components for auxiliary fixing of reinforcing ribs on both sides of the bucket are symmetrically arranged on both sides of the top of the fixed platform, the auxiliary positioning components comprise a plurality of vertical plates, a fixed plate, a plurality of telescopic fixings and a gas driving component for driving the plurality of telescopic fixings to move, the plurality of vertical plates are evenly arranged along the length direction of the fixed platform, the fixed plate is fixedly arranged on one side of the plurality of vertical plates close to the scissor-type lifting platform, the fixed plate is provided with a plurality of groups of through holes symmetrical about the vertical plates, the plurality of telescopic fixings are respectively inserted into all the through holes and fixedly connected to the fixed plate, and the gas driving component is installed on the fixed platform and is respectively connected to the plurality of telescopic fixings.

[0008] Preferably, the telescopic fixing member includes a fixed head, a fixed cylinder, a movable rod, a first piston, a accommodating seat, a contact head and a sliding rod, the fixed cylinder is inserted in the through hole, the fixed head is fixed at one end of the fixed cylinder, the movable rod is axially slidingly connected in the fixed cylinder, the first piston is fixed at one end of the movable rod and is axially sealed and connected to the fixed cylinder, the other end of the movable rod extends to the outside of the fixed cylinder, the accommodating seat is fixed on the end of the movable rod away from the fixed head, and the end of the movable rod close to the accommodating seat is provided with a connecting groove connected to the accommodating seat, the contact head is arranged inside the accommodating seat and is adapted to the accommodating seat, the sliding rod is axially sealingly slidably arranged in the connecting groove, and one end of the sliding rod is fixedly connected to the contact head, and the other end of the sliding rod is fixedly connected with a second piston, and the second piston is axially sealed and connected to the connecting groove.

[0009] Preferably, the contact head includes a contact ring and an arc cover, the sliding rod is fixedly connected to the arc cover, the contact ring is fixed on the side of the arc cover away from the sliding rod, the diameter of the contact ring is equal to the inner diameter of the accommodating seat, the sliding rod is provided with an air vent connected to the arc cover, the sliding rod side wall is also provided with an air guide port connected to the air vent and the connecting groove, the sliding rod is externally sleeved with a spring, the two ends of the spring are respectively fixedly connected to the arc cover and the inner wall of the accommodating seat, and the sliding rod side wall is provided with an exhaust port connected to the connecting groove.

[0010] Preferably, the gas-driven component includes an air pump, an air supply pipe, multiple air branch pipes and multiple U-shaped connecting pipes. The air pump is installed on a fixed platform, the air supply pipe is connected to the output end of the air pump, the multiple air branch pipes are evenly fixed on the air supply pipe, and the multiple U-shaped connecting pipes are respectively connected to the other end of the air branch pipes, and the two interfaces of the multiple U-shaped connecting pipes are respectively connected to two fixed cylinders in two telescopic fixing members symmetrically arranged on both sides of the vertical plate.

[0011] Preferably, all the through holes are fixedly connected with threaded interfaces, and all the fixing cylinders are respectively threadedly connected with all the threaded interfaces.

[0012] Preferably, the multi-axis welding mechanism comprises a plurality of welding assemblies and an adjustment assembly for moving the plurality of welding assemblies laterally and longitudinally, the adjustment assembly being mounted on a frame, the plurality of welding assemblies being symmetrically arranged in pairs, and all of the welding assemblies being mounted on the adjustment assembly.

[0013] Preferably, the welding assembly includes a fixed seat, a mounting seat, an electric push rod and a welding gun, the fixed seat is threadedly connected to the screw of the adjusting assembly, a mounting groove is provided at the bottom of the fixed seat, the mounting seat is located in the mounting groove and fixedly connected to the fixed seat, the electric push rod is installed in the mounting seat, and the welding gun is fixedly connected to the output shaft of the electric push rod.

[0014] Preferably, a rubber cushion layer is provided on the side of the abutment head facing the scissor-type lifting platform.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, the gas driving member pushes all the telescopic fixing members to move to abut against the side wall of the workpiece, and pushes the workpiece, so that the horizontally placed workpiece and the longitudinally placed workpiece are pressed against each other, so that the joint between the two is tightly fitted, which can reduce manual operations during welding, thereby reducing the safety risks of operators. In addition, this fixing method can firmly fix and support metal materials, making welding operations more accurate and efficient, helping to reduce material waste and rework, and also reducing the labor intensity of manually supporting materials.

[0017] 2. In the present invention, a gas driving member cooperates with a plurality of telescopic fixing members to generate negative pressure inside the arc cover so as to firmly adsorb the workpiece, thereby reducing deformation of the workpiece during welding, improving the stability of the workpiece during placement, and avoiding the problem of the workpiece being offset during welding and affecting the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 A three-dimensional diagram of the overall structure of a welding device for producing a mining vehicle bucket is provided for an embodiment of the present invention;

[0020] Figure 2 An overall structural plan view of a welding device for producing a mining vehicle bucket is provided for an embodiment of the present invention;

[0021] Figure 3 Provides a stereoscopic diagram of the overall structure of the auxiliary positioning assembly for an embodiment of the present invention;

[0022] Figure 4 A top view of an auxiliary positioning assembly is provided for an embodiment of the present invention;

[0023] Figure 5 A cross-sectional view of an auxiliary positioning assembly is provided for an embodiment of the present invention;

[0024] Figure 6 for Figure 5 A magnified view of the structure at A.

[0025] Reference numerals: 1, workbench; 2, frame; 3, multi-axis welding mechanism; 4, fixed table; 5, scissor lift; 6, auxiliary positioning assembly; 7, vertical plate; 8, fixed plate; 9, telescopic fixing member; 10, gas driving member; 11, through hole; 12, threaded interface;

[0026] 31. Welding assembly; 32. Adjusting assembly; 33. Fixed seat; 34. Mounting seat; 35. Electric push rod; 36. Welding gun; 91. Fixed head; 92. Fixed cylinder; 93. Movable rod; 94. First piston; 95. Accommodating seat; 96. Abutment head; 97. Sliding rod; 98. Connecting groove; 99. Abutment ring; 110. Arc cover; 111. Air vent; 112. Air guide port; 113. Spring; 114. Second piston; 115. Exhaust port; 101. Air pump; 102. Air pipe; 103. Air distribution pipe; 104. U-shaped connecting pipe. DETAILED DESCRIPTION

[0027] 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.

[0028] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0029] like Figures 1 to 6 As shown, the present invention provides a welding device for producing a mining vehicle bucket, comprising a workbench 1 and a frame 2 arranged on the workbench 1, a multi-axis welding mechanism 3 is arranged at the bottom of the frame 2, a fixed platform 4 for placing the bucket is arranged on the workbench 1, a scissor-type lifting platform 5 is arranged at the middle position of the top of the fixed platform 4, two auxiliary positioning components 6 for auxiliary fixing of the reinforcing ribs on both sides of the bucket are symmetrically arranged on both sides of the top of the fixed platform 4, the auxiliary positioning components 6 include multiple vertical plates 7, a fixed plate 8, multiple telescopic fixings 9 and a gas driving component 10 for driving the multiple telescopic fixings 9 to move, the multiple vertical plates 7 are evenly arranged along the length direction of the fixed platform 4, the fixed plate 8 is fixedly arranged on one side of the multiple vertical plates 7 close to the scissor-type lifting platform 5, the fixed plate 8 is provided with multiple groups of through holes 11 symmetrical about the vertical plates 7, the multiple telescopic fixings 9 are respectively inserted into all the through holes 11 correspondingly, and are fixedly connected to the fixed plate 8, and the gas driving component 10 is installed on the fixed platform 4 and is respectively connected to the multiple telescopic fixings 9.

[0030] When the present invention is in use, taking into account that the reinforcing ribs on the end faces of the bucket of a mining truck are welded in an array shape using square steel, which has the characteristics of high welding difficulty and many welding points, a multi-axis welding mechanism 3 is set on the frame 2. The multi-axis welding mechanism 3 includes a plurality of welding assemblies 31 and an adjustment assembly 32 for moving the plurality of welding assemblies 31 laterally and longitudinally. The adjustment assembly 32 is installed on the frame 2, and the plurality of welding assemblies 31 are symmetrically arranged in pairs, and all the welding assemblies 31 are installed on the adjustment assembly 32. The welding assembly 31 includes a fixed seat 33, a mounting seat 34, an electric push rod 35 and a welding gun 36. The fixed seat 33 is threadedly connected to the screw rod of the adjustment assembly 32. A mounting groove is provided at the bottom of the fixed seat 33. The mounting seat 34 is located in the mounting groove and is fixedly connected to the fixed seat 33. The electric push rod 35 is installed in the mounting seat 34. The welding gun 36 is fixedly connected to the output shaft of the electric push rod 35. A plurality of welding guns 36 are symmetrically arranged on both sides of the fixed platform 4, and the number of welding guns 36 can be adjusted according to welding needs; the positions of the plurality of welding guns 36 are adjusted horizontally and vertically by the adjustment assembly 32 to adapt to a plurality of welding points, and the arrangement of the plurality of electric push rods 35 can facilitate the adjustment of the height of the welding gun 36 to weld the reinforcing ribs at different positions, wherein the adjustment assembly 32 can be any device and mechanism in the prior art that can drive the plurality of welding assemblies 31 to move in the horizontal and vertical directions. This is the prior art, and therefore, the principle and structure of the device are no longer described in the present invention.

[0031] When welding the truck bed of a mining vehicle, a lifting device is used to lift the workpiece onto a scissor-type lifting platform 5, and then multiple workpieces are spliced ​​horizontally and vertically to make the weld in a flat welding position as much as possible. The height of the workpiece is adjusted by the scissor-type lifting platform 5 to make the height of the workpiece flush with the height of multiple telescopic fixings 9. Then, the gas drive 10 pushes all the telescopic fixings 9 to move to abut against the side wall of the workpiece, and pushes the workpiece so that the horizontally placed workpiece and the vertically placed workpiece are pressed against each other, so that the joints between the two are tightly fitted. At this time, after adjusting the positions of multiple welding guns 36 by adjusting the adjustment assembly 32, welding work is performed at the joints between the multiple workpieces.

[0032] Furthermore, the telescopic fixing member 9 includes a fixed head 91, a fixed cylinder 92, a movable rod 93, a first piston 94, a receiving seat 95, a contact head 96 and a sliding rod 97. The fixed cylinder 92 is inserted into the through hole 11, the fixed head 91 is fixed to one end of the fixed cylinder 92, the movable rod 93 is axially slidably connected to the fixed cylinder 92, the second piston 114 is fixed to one end of the movable rod 93 and is axially sealed with the fixed cylinder 92, the other end of the movable rod 93 extends to the outside of the fixed cylinder 92, the receiving seat 95 is fixed to one end of the movable rod 93, and the movable rod 93 is axially sealed with the fixed cylinder 92. The other end of the movable rod 93 extends to the outside of the fixed cylinder 92, and the receiving seat 95 is fixed to the fixed cylinder 92. One end of the movable rod 93 is fixed away from the fixed head 91, and the end of the movable rod 93 close to the accommodating seat 95 is provided with a connecting groove 98 connected with the accommodating seat 95, the contact head 96 is arranged inside the accommodating seat 95 and is adapted to the accommodating seat 95, the sliding rod 97 is axially sealed and slidably arranged in the connecting groove 98, and one end of the sliding rod 97 is fixedly connected to the contact head 96, and the other end of the sliding rod 97 is fixedly connected to the second piston 114, and the second piston 114 is axially sealed and connected to the connecting groove 98.

[0033] When the telescopic fixing member 9 is in use, air is supplied to the interior of the fixed cylinder 92 through the gas driving member 10. The gas driving member 10 includes an air pump 101, an air supply pipe 102, multiple air branch pipes 103 and multiple U-shaped connecting pipes 104. The air pump 101 is installed on the fixing platform 4, the air supply pipe 102 is connected to the output end of the air pump 101, and the multiple air branch pipes 103 are evenly fixed on the air supply pipe 102. The multiple U-shaped connecting pipes 104 are respectively connected to the other end of the air branch pipes 103, and the two interfaces of the multiple U-shaped connecting pipes 104 are respectively connected to the two fixed cylinders 92 in the two telescopic fixing members 9 symmetrically arranged on both sides of the vertical plate 7. Start the air pump 101, pump air through the air pump 101, and deliver the gas to the air delivery pipe 102. Then the gas is diverted from multiple gas distribution pipes 103 to multiple U-shaped connecting pipes 104. After entering the multiple U-shaped connecting pipes 104, the gas is diverted to the fixed cylinder 92 connected thereto. When the fixed cylinder 92 is filled with gas, the piston is pushed to move, thereby pushing the movable rod 93 to extend from the inside of the fixed cylinder 92 until the abutment head 96 abuts against the side wall of the workpiece.

[0034] Among them, the contact head 96 includes a contact ring 99 and an arc cover 110, the sliding rod 97 is fixedly connected to the arc cover 110, the contact ring 99 is fixed on the side of the arc cover 110 away from the sliding rod (97), the diameter of the contact ring 99 is equal to the inner diameter of the accommodating seat 95, the sliding rod 97 is provided with a vent 111 connected to the arc cover 110, the side wall of the sliding rod 97 is also provided with an air guide port 112 connected to the vent 111 and the connecting groove 98, the outside of the sliding rod 97 is provided with a spring 113, the two ends of the spring 113 are respectively fixedly connected to the arc cover 110 and the inner wall of the accommodating seat 95, and the side wall of the sliding rod 97 is provided with an exhaust port 115 connected to the connecting groove 98.

[0035] When the abutment head 96 abuts against the side wall of the workpiece, the abutment ring 99 fits tightly against the outer wall of the workpiece, thereby closing the interior of the arc cover 110 and making the interior of the arc cover 110 a closed space. At this time, the abutment ring 99 stops moving after receiving the abutment pressure from the workpiece, and the movable rod 93 continues to drive the accommodating seat 95 to continue to move forward until the side wall of the accommodating seat 95 in the opening direction moves to be flush with the abutment ring 99 and abuts against the workpiece. Then the accommodating seat 95 pushes the workpiece in contact with it to move, so that the workpiece abuts against the workpiece to be spliced ​​with it until it fits tightly, thereby reducing the gap at the joint between the two, realizing the docking of the workpieces, and the tight joints of the workpieces, effectively improving the welding efficiency and welding quality. Among them, when the contact ring 99 is subjected to the resistance pressure from the workpiece, the accommodating seat 95 continues to move forward to squeeze the spring 113, and the sliding rod 97 fixedly connected to the arc cover 110 can move along the inside of the connecting groove 98. The inside of the connecting groove 98 is divided by the second piston 114. When the sliding rod 97 moves toward the exhaust port 115, the gas on the side of the second piston 114 in the connecting groove 98 is discharged from the exhaust port 115, and a negative pressure is generated near the sliding rod 97 in the connecting groove 98. As the sliding rod 97 moves, the gas inside the arc cover 110 enters the connecting groove 98 along the vent 111 and the air guide port 112, thereby generating a negative pressure inside the arc cover 110 to firmly adsorb the workpiece, thereby reducing the deformation of the workpiece during welding, improving the stability of the workpiece when it is placed, and avoiding the workpiece from being offset during the welding process, which affects the welding accuracy.

[0036] When welding the reinforcing ribs of the car body and its side walls, similarly, after placing the car body on the scissor-type lift 5, the scissor-type lift 5 is adjusted to a suitable height, and then all the reinforcing ribs are arranged in sequence and placed on the side walls of the car body, the reinforcing ribs are fixed to the side walls of the car body by a plurality of telescopic fixings 9, and then welded by a welding gun 36. The present invention realizes adsorption-type fixation of the reinforcing ribs through the cooperation of the gas drive 10 and the plurality of telescopic fixings 9, which can reduce manual operation during welding, thereby reducing the safety risk of the operator, and the fixing method can firmly fix and support the metal material, making the welding operation more accurate and efficient, helping to reduce material waste and rework, and also reducing the labor intensity of manually supporting the material.

[0037] Compared with the prior art, the present invention adopts a side fixing method, which can clamp and fix the frame and reinforcement ribs, and can also be used for clamping and fixing the reinforcement ribs of the car body and its side walls. It has strong applicability, and the combination of adsorption fixation and resistance fixation can not only ensure the fixing effect of the workpiece, but also will not cause damage to the workpiece surface due to additional fixing force, thereby greatly improving the welding efficiency and product quality of the car body.

[0038] All through holes 11 are fixedly connected with threaded interfaces 12, and all fixing tubes 92 are respectively threadedly connected with all threaded interfaces 12. The fixing method using threaded interfaces 12 can facilitate the disassembly and replacement of the telescopic fixing member 9, as well as the adjustment of the length.

[0039] A rubber cushion is provided on the side of the abutment head 96 facing the scissor lift 5, so that the abutment ring 99 and the workpiece fit closely, thereby improving the sealing effect of the arc cover 110, ensuring that the workpiece is completely and flatly fixed on the workbench 1, and no additional fixing force will cause damage to the workpiece surface.

[0040] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A welding device for producing a mining vehicle bucket, comprising a workbench (1) and a frame (2) arranged on the workbench (1), characterized in that: A multi-axis welding mechanism (3) is arranged at the bottom of the frame (2); a fixed platform (4) for placing a truck bucket is arranged on the workbench (1); a scissor-type lifting platform (5) is arranged at the middle position of the top of the fixed platform (4); two auxiliary positioning components (6) for auxiliary fixing of the reinforcing ribs on both sides of the truck bucket are symmetrically arranged on both sides of the top of the fixed platform (4); the auxiliary positioning components (6) include a plurality of vertical plates (7), a fixed plate (8), a plurality of telescopic fixing members (9) and a gas driving member (10) for driving the plurality of telescopic fixing members (9) to move; the plurality of vertical plates (7) The fixing plate (8) is evenly arranged along the length direction of the fixing platform (4), the fixing plate (8) is fixedly arranged on a side of the plurality of vertical plates (7) close to the scissor-type lifting platform (5), the fixing plate (8) is provided with a plurality of through holes (11) symmetrical with respect to the vertical plates (7), the plurality of telescopic fixing members (9) are respectively inserted into all the through holes (11) and are fixedly connected to the fixing plate (8), the gas driving member (10) is mounted on the fixing platform (4), and is respectively connected to the plurality of telescopic fixing members (9); the telescopic fixing member (9) comprises a fixing head (91), a fixing cylinder (92), and a movable rod (93), a first piston (94), a receiving seat (95), a contact head (96) and a sliding rod (97), the fixed cylinder (92) is inserted into the through hole (11), the fixed head (91) is fixed to one end of the fixed cylinder (92), the movable rod (93) is axially slidably connected in the fixed cylinder (92), the first piston (94) is fixed to one end of the movable rod (93) and is axially sealed to the fixed cylinder (92), the other end of the movable rod (93) extends to the outside of the fixed cylinder (92), and the receiving seat (95) is fixed on the movable rod (93) away from the fixed head. (91), one end of the movable rod (93) near the accommodating seat (95) is provided with a connecting groove (98) connected to the accommodating seat (95), the contact head (96) is arranged inside the accommodating seat (95) and is adapted to the accommodating seat (95), the sliding rod (97) is axially sealed and slidably arranged in the connecting groove (98), and one end of the sliding rod (97) is fixedly connected to the contact head (96), and the other end of the sliding rod (97) is fixedly connected to a second piston (114), and the second piston (114) is axially sealed and connected to the connecting groove (98);The abutment head (96) comprises an abutment ring (99) and an arc-shaped cover (110), the sliding rod (97) is fixedly connected to the arc-shaped cover (110), the abutment ring (99) is fixed to a side of the arc-shaped cover (110) away from the sliding rod (97), the diameter of the abutment ring (99) is equal to the inner diameter of the accommodating seat (95), the sliding rod (97) is provided with an air vent (111) in communication with the arc-shaped cover (110), the side wall of the sliding rod (97) is also provided with an air guide port (112) in communication with both the air vent (111) and the connecting groove (98), the sliding rod (97) is sleeved with a spring (113) at its outer side, the two ends of the spring (113) are respectively fixedly connected to the arc-shaped cover (110) and the inner wall of the accommodating seat (95), and the side wall of the sliding rod (97) is provided with an exhaust port (115) in communication with the connecting groove (98). ; 2. A welding device for producing a mining vehicle bucket according to claim 1, characterized in that: The gas drive component (10) comprises an air pump (101), an air delivery pipe (102), a plurality of air distribution pipes (103) and a plurality of U-shaped connecting pipes (104); the air pump (101) is mounted on a fixed platform (4); the air delivery pipe (102) is connected to an output end of the air pump (101); the plurality of air distribution pipes (103) are evenly fixed on the air delivery pipe (102); the plurality of U-shaped connecting pipes (104) are respectively connected to the other end of the air distribution pipes (103); and two interfaces of the plurality of U-shaped connecting pipes (104) are respectively connected to two fixed cylinders (92) in two telescopic fixing members (9) symmetrically arranged on both sides of the vertical plate (7).

3. A welding device for producing a mining vehicle bucket according to claim 1, characterized in that: All the through holes (11) are fixedly connected to the inside with a threaded interface (12), and all the fixing cylinders (92) are respectively threadedly connected to all the threaded interfaces (12).

4. A welding device for producing a mining vehicle bucket according to claim 1, characterized in that: The multi-axis welding mechanism (3) comprises a plurality of welding assemblies (31) and an adjustment assembly (32) for performing transverse and longitudinal movement of the plurality of welding assemblies (31); the adjustment assembly (32) is mounted on a frame (2); the plurality of welding assemblies (31) are symmetrically arranged in pairs, and all of the welding assemblies (31) are mounted on the adjustment assembly (32).

5. A welding device for producing a mining vehicle bucket according to claim 4, characterized in that: The welding assembly (31) comprises a fixing seat (33), a mounting seat (34), an electric push rod (35) and a welding gun (36); the fixing seat (33) is threadedly connected to a screw rod of the adjusting assembly (32); a mounting groove is provided at the bottom of the fixing seat (33); the mounting seat (34) is located in the mounting groove and is fixedly connected to the fixing seat (33); the electric push rod (35) is installed in the mounting seat (34); and the welding gun (36) is fixedly connected to an output shaft of the electric push rod (35).

6. A welding device for producing a mining vehicle bucket according to claim 1, characterized in that: A rubber cushion layer is provided on the side of the abutment head (96) facing the scissor-type lifting platform (5).

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