Welding equipment for cargo boom of tower crane

Abstract

The invention relates to the technical field of welding equipment, and discloses welding equipment for a cargo boom of a tower crane, the welding equipment comprises a base and a moving assembly above the base, the welding equipment is controlled by a controller to operate, a supporting seat is fixed on the side, away from the moving assembly, of the base, and a truss is slidably connected to the outer portion of the supporting seat; according to the welding equipment for the tower crane cargo boom, the combined state of the driving semi-ring and the driven semi-ring is relieved, cargo boom profile steel is hoisted to the top of an adjusting seat in the driving semi-ring, the driving semi-ring and the driven semi-ring are aligned, the return stroke of an electric telescopic rod is controlled, and the driving semi-ring and the driven semi-ring are driven to be closed and combined into a complete circular ring; the movable assembly drives the welding gun to weld the cargo boom profile steel, in the welding process, the gear disc is driven by the motor to drive the cargo boom profile steel to turn over, then each welding position of the cargo boom profile steel is located below the welding gun, and therefore overhead welding operation is avoided, and dropping of a molten pool is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to welding equipment used for a tower crane boom. Background Art

[0002] The crane arm, commonly known as the jib or boom, is a bidirectional bent metal structure that supports the lifting rope, picking device or luffing trolley. The crane arm is widely used in various types of crane equipment, such as truck cranes, tire cranes, tower cranes, etc. It plays an important role in construction sites, ports, freight yards and other occasions, and is used to lift and carry heavy objects.

[0003] When the boom is used in a tower crane, the boom is usually welded with sections of steel and then welded to the tower crane. In the prior art, automatic welding equipment is generally used for welding the boom, that is, two steel sections to be welded are hoisted and placed on a welding platform, and a microcomputer controls the movement of the welding gun to weld.

[0004] However, when this automatic welding equipment is used to weld the boom steel, the position of the welding gun will change with the change of the welding position. When the welding gun is located above the welding position, the molten pool formed by the welding will fill into the weld and then complete the welding. When the welding gun is located below the welding position, the molten pool will drip, resulting in insufficient filling of the weld and then inadequate welding. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a welding device for a tower crane boom, which solves the problems raised in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a welding device for a tower crane boom, comprising a base and a moving assembly above the base, wherein the moving assembly can drive a welding gun connected below to move vertically and in the length direction of the base, and the welding device is controlled and operated by a controller, a support seat is fixed on a side of the base away from the moving assembly, and a truss is slidably connected to the outside of the support seat;

[0007] Pillars are fixed on the tops of both sides of the truss, and concave frames are fixed on the tops of the pillars. A bracket is fixed on one side of the inside of the concave frame, and a motor is fixed on the top of the bracket. A gear plate is fixed on the outside of the motor output shaft. Limiting blocks are fixed on the inner walls of both sides of the concave frame. Lifting components are provided inside the concave frame, and the lifting components are used to lift the heavy arm component;

[0008] The lifting assembly comprises an active half ring, an active ring groove is provided on the surface of the active half ring, the active ring groove is slidably connected to the limit block, teeth are fixed on the surface of the active half ring away from the active ring groove, the teeth are meshed with the gear plate, an adjustment seat is connected to the inner thread of the active half ring, and a disc is provided on the top of the adjustment seat;

[0009] A lifting arm steel is placed on the top of the adjusting seat.

[0010] Optionally, placement cavities are provided inside both ends of the active semi-ring, an electric telescopic rod is fixed inside one of the placement cavities, a limiting circular plate is fixed on the top of the output shaft of the electric telescopic rod, the outside of the limiting circular plate is rotatably connected to a driven semi-ring, a slot is provided inside the driven semi-ring at one end away from the electric telescopic rod, and a magnetic block is fixed inside the slot.

[0011] Optionally, a first spring is fixed inside the placement cavity near the card slot, and a magnetic tube is fixed outside one end of the first spring. The magnetic properties of the magnetic tube and the magnetic block are opposite, and the magnetic tube is slidably connected to the placement cavity and the card slot.

[0012] Optionally, the outer shape of the driven half ring is equal to that of the driving half ring, and they are arranged relative to each other. A driven ring groove is provided on the surface of the driven half ring, and teeth are fixed on the surface of the driven half ring away from the driven ring groove. The driven ring groove is slidably connected to the limit block, and the internal thread of the driven half ring is connected to an adjustment seat.

[0013] Optionally, a cylinder is fixed inside the support seat, and a limit seat is fixed on the top of the cylinder output shaft.

[0014] Optionally, a limiting groove is provided on the top of the limiting seat, a bidirectional lead screw is rotatably connected inside the limiting groove, one end of the bidirectional lead screw passes through the limiting seat, and a handle is provided outside the end.

[0015] Optionally, the surfaces of both sides of the bidirectional lead screw are threadedly connected with adjustment blocks, the adjustment blocks are slidably connected to the limit grooves, and positioning frames are fixed on both sides of the top of the adjustment blocks.

[0016] Optionally, an adjustment groove is provided inside the positioning frame, and a zirconia ceramic frame is slidably connected inside the adjustment groove close to the handle. A magnetic sheet is fixed to the end of the zirconia ceramic frame close to the boom steel section. A slide groove is provided on the top of the zirconia ceramic frame, and a slider is slidably connected inside the slide groove. A second spring is fixed on the top of the slider, and one end of the second spring is fixed to the top plate of the adjustment groove. A magnetic plate is fixed inside the adjustment groove on the side where the zirconia ceramic frame is not set, and the magnetic properties of the magnetic plate are opposite to those of the magnetic sheet.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The welding equipment for the boom of a tower crane, when placing the boom steel, first releases the combination state of the active half ring and the driven half ring, so that the active half ring is in an open state, and then the boom steel is hoisted to the inside of the active half ring through the hoisting structure, and is placed on the top of the adjusting seat in the active half ring, and then after aligning the active half ring and the driven half ring, the electric telescopic rod is controlled to return, and then the active half ring and the driven half ring are driven to be closed, and the combination is a complete circular ring, and then the welding gun is driven by the moving component to weld the boom steel. During the welding process, the gear plate is driven by the motor to turn the boom steel, and then each welding point of the boom steel is located below the welding gun, thereby avoiding the operation of overhead welding and avoiding the dripping of the molten pool.

[0019] 2. The welding equipment for the boom of a tower crane, when the boom steel enters the first working state, the contact ends of the two boom steels are in an outward convex angle state, and the control cylinder drives the limit seat transmission positioning frame to lift up. After the limit seat contacts the boom steel, it supports the boom steel. At the same time, the zirconia ceramic frame is pulled to move the zirconia ceramic frame to the surface of the boom steel, and then the zirconia ceramic frame is pushed to make the zirconia ceramic frame span the surfaces of the two boom steels. Under the action of the spring, the bottom of the zirconia ceramic frame is attached to the two sides of the outward convex angle of the boom steel, and the magnetic plate adsorbs the magnetic sheet, thereby completing the limiting of the zirconia ceramic frame, and the molten pool generated during welding is limited by the two zirconia ceramic frames, thereby avoiding the dripping of the molten pool and improving the welding quality of the boom components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the initial working state of the present invention;

[0021] Figure 2 This is a schematic diagram of the first working state of the present invention;

[0022] Figure 3 This is a schematic diagram of the second working state of the present invention;

[0023] Figure 4 This is a schematic diagram of the third working state of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the truss and the pillar of the present invention;

[0025] Figure 6 It is a schematic diagram of the positional relationship between the active half ring, the electric telescopic rod and the driven half ring of the present invention;

[0026] Figure 7 It is a structural cross-sectional view of the driving half ring and the driven half ring of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the support seat and the cylinder of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the positioning frame of the present invention;

[0029] Fig.10 It is a structural front view of the positioning frame of the present invention;

[0030] Fig.11 It is a structural schematic diagram of the limiting circular plate of the present invention;

[0031] Fig.12 It is a structural schematic diagram of the adjustment seat of the present invention.

[0032] In the figure: 1. base; 11. support seat; 2. truss; 3. pillar; 31. concave frame; 32. motor; 33. gear plate; 34. limit block; 4. active half ring; 41. active ring groove; 42. teeth; 43. adjustment seat; 44. placement cavity; 45. electric telescopic rod; 451. limit circular plate; 46. driven half ring; 461. driven ring groove; 47. slot; 471. magnetic block; 48. first spring; 49. magnetic tube; 5. crane arm steel; 6. cylinder; 7. limit seat; 71. limit groove; 72. two-way lead screw; 73. adjustment block; 74. positioning frame; 8. adjustment groove; 81. zirconia ceramic frame; 811. magnetic sheet; 82. slide groove; 83. slider; 84. second spring; 85. magnetic plate. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiment 1:

[0035] See also Figure 1-12 A welding device for a tower crane boom comprises a base 1 and a moving assembly above the base 1, the moving assembly can drive a welding gun connected below to move vertically and in the length direction of the base 1, the welding device is controlled by a controller, a support seat 11 is fixed on a side of the base 1 away from the moving assembly, and a truss 2 is slidably connected to the outside of the support seat 11;

[0036] The tops of both sides of the truss 2 are fixed with pillars 3, and the tops of the pillars 3 are fixed with concave frames 31, one side of the inside of the concave frame 31 is fixed with a bracket, and the top of the bracket is fixed with a motor 32, the outside of the output shaft of the motor 32 is fixed with a gear plate 33, and the inner walls of both sides of the concave frame 31 are fixed with limit blocks 34, and the inside of the concave frame 31 is provided with lifting components, which are used to lift the heavy arm components;

[0037] The lifting assembly includes an active half ring 4, an active ring groove 41 is provided on the surface of the active half ring 4, the active ring groove 41 is slidably connected with the limit block 34, a tooth 42 is fixed on the surface of the active half ring 4 away from the active ring groove 41, the tooth 42 is meshed with the gear plate 33, an adjustment seat 43 is connected to the inner thread of the active half ring 4, a disc is provided on the top of the adjustment seat 43, and a crane arm steel 5 is placed on the top of the adjustment seat 43;

[0038] Placement cavities 44 are provided at both ends of the active half ring 4, an electric telescopic rod 45 is fixed inside one of the placement cavities 44, a limiting circular plate 451 is fixed on the top of the output shaft of the electric telescopic rod 45, a driven half ring 46 is rotatably connected to the outside of the limiting circular plate 451, a card slot 47 is provided inside the end of the driven half ring 46 away from the electric telescopic rod 45, a magnetic block 471 is fixed inside the card slot 47;

[0039] A first spring 48 is fixed inside the placement cavity 44 of the boom steel 5 near the slot 47, and a magnetic tube 49 is fixed outside one end of the first spring 48. The magnetic properties of the magnetic tube 49 and the magnetic block 471 are opposite, and the magnetic tube 49 is slidably connected to the placement cavity 44 and the slot 47. The shape of the driven half ring 46 is equal to that of the driving half ring 4, and they are arranged oppositely. A driven ring groove 461 is opened on the surface of the driven half ring 46, and teeth 42 are fixed on the surface of the driven half ring 46 away from the driven ring groove 461. The driven ring groove 461 is slidably connected to the limit block 34.

[0040] During the specific operation, the electric telescopic rod 45 is first started by the controller, so that the electric telescopic rod 45 drives the limit circular plate 451 to lift up, and then the limit circular plate 451 drives the driven half ring 46 to lift up, thereby releasing the combination state of the active half ring 4 and the driven half ring 46, and then the driven half ring 46 is rotated to make the active half ring 4 open. When the two active half rings 4 are in the open state, the two boom steels 5 can be hoisted to the inside of the two active half rings 4 respectively, and the boom steels 5 are placed on the top of the adjustment seat 43 in the active half ring 4;

[0041] When the lifting of the boom steel 5 is completed, the driven half ring 46 is rotated to realign the driven half ring 46 with the active half ring 4, and the controller is used to control the electric telescopic rod 45 to return, so that the electric telescopic rod 45 drives the limit circular plate 451 to return, and the limit circular plate 451 drives the driven half ring 46 to return, and then the driven half ring 46 and the active half ring 4 are recombined into a complete circular ring, and then the controller is used to start the magnetic block 471, so that the magnetic block 471 generates magnetic force after being energized, and absorbs the magnetic tube 49, so that the magnetic tube 49 is clamped into the inside of the clamping slot 47, and then the locking of the driven half ring 46 and the active half ring 4 is completed;

[0042] Furthermore, since the active half ring 4 and the driven half ring 46 are arranged relative to each other, the adjustment seats 43 in the active half ring 4 and the driven half ring 46 are arranged relative to each other. When the active half ring 4 and the driven half ring 46 are assembled, the adjustment seat 43 in the driven half ring 46 is rotated so that the adjustment seat 43 in the driven half ring 46 gradually approaches the boom section steel 5 until it contacts the boom section steel 5. Then, the rotation of the adjustment seat 43 is stopped. At this time, the positions of the two boom section steels 5 are adjusted so that the contact ends of the two boom section steels 5 are aligned. Then, the adjustment seat 43 is continuously rotated so that the adjustment seats 43 in the active half ring 4 and the driven half ring 46 clamp the boom section steel 5. Then, the clamping and fixing of the boom section steel 5 is completed. At the same time, the contact ends of the two boom section steels 5 are locked, thereby improving the accuracy of subsequent welding of the two boom section steels 5.

[0043] Specifically, Figure 1 For reference, when the boom steel 5 is locked, the present invention enters the initial working state, and then controls the moving assembly through the controller, so that the moving assembly drives the welding gun to move. At this time, the surface of the two boom steels 5 close to the welding gun is in a horizontal state, and the surface is welded as the welding gun moves. Therefore, the molten pool generated by welding is also in a horizontal state, that is, the molten pool is in a stable state. As the welding gun keeps moving, the molten pool moves with the movement of the welding gun, and then the welding of the front of the boom steel 5 is completed;

[0044] Furthermore, in the initial working state, after the welding of the welding parts of the two boom steels 5 is completed, the motors 32 in the two concave frames 31 are started by the controller, and the gear plate 33 is driven to rotate by the motor 32, and then the gear teeth 42 are driven to rotate by the gear plate 33. Since the surfaces of the active half ring 4 and the driven half ring 46 are both provided with teeth 42, and at this time the active half ring 4 and the driven half ring 46 are combined into a complete circular ring, the teeth 42 on the surfaces of the active half ring 4 and the driven half ring 46 are also combined into a circular ring shape, and fit the gear plate 33;

[0045] Therefore, when the gear plate 33 rotates, the gear plate 33 can drive the ring composed of the active half ring 4 and the driven half ring 46 to rotate through the teeth 42. When the ring composed of the active half ring 4 and the driven half ring 46 rotates, the two adjustment seats 43 inside them are respectively driven to rotate, and then the adjustment seats 43 drive the boom steel 5 to rotate, thereby making the two boom steels 5 flip over, that is, the motor 32 drives the adjustment seat 43 to drive the boom steel 5 to flip over, and during the flipping process of the two boom steels 5, their welding parts are still in a fitted state, and no displacement changes will occur, thereby improving the accuracy of subsequent welding of the two boom steels 5;

[0046] Reference Figure 2 , when the active half ring 4 and the driven half ring 46 are turned counterclockwise by 90 degrees, the two boom steels 5 are also turned counterclockwise by 90 degrees, and the present invention enters the first working state at this time, and then continues to drive the welding gun to move through the moving assembly, at this time, the two boom steels 5 are close to one side of the welding gun, in an outward convex angle state, and the welding gun welds the welding points of the two boom steels 5 during the movement, and after the welding is completed, the motor 32 is continued to be controlled to drive the gear plate 33 to rotate, and the gear plate 33 is continued to drive the two boom steels 5 to turn counterclockwise by 90 degrees, so that the present invention enters the second working state, and after the welding is completed in the second working state, the gear plate 33 is continued to drive the two boom steels 5 to turn counterclockwise by 90 degrees, so that the present invention enters the third working state;

[0047] Reference Figure 4 In the third working state, the two boom steel sections 5 are close to one side of the welding gun and are in a concave angle state. Then the welding gun welds the two boom steel sections 5 in the third working state. At this point, all welding joints of the boom steel sections 5 are welded.

[0048] It should be noted that in many traditional welding equipment, only two boom steels 5 that are butted in a straight line can be welded, and after welding, they are also in a straight strip shape. In the present invention, the boom steel 5 used has a welding surface that is inclined with respect to the length direction of the boom steel 5, that is, the two boom steels 5 in the present invention have a certain angle after being butted and welded. Therefore, compared with traditional welding equipment, the present invention is more widely used, and the materials formed by welding can better meet the needs of the boom. In addition, during the welding process, the welding gun is always located above the welding point, which avoids dripping of the molten pool caused by overhead welding and improves the quality of welding.

[0049] The adjusting seat is composed of a screw and a disc. The contact ends of the screw and the disc in the adjusting seat can be set in a hexagonal shape, which is convenient for welding personnel to use a wrench for auxiliary rotation.

[0050] Embodiment 2:

[0051] The support seat 11 is internally fixed with a cylinder 6, and the top of the output shaft of the cylinder 6 is fixed with a limit seat 7, and the top of the limit seat 7 is provided with a limit slot 71, and the inside of the limit slot 71 is rotatably connected with a bidirectional lead screw 72, and one end of the bidirectional lead screw 72 passes through the limit seat 7, and a handle is provided on the outside of this end, and the surfaces of both sides of the bidirectional lead screw 72 are threadedly connected with adjustment blocks 73, and the adjustment blocks 73 are slidably connected with the limit slot 71, and positioning frames 74 are fixed on both sides of the top of the adjustment block 73;

[0052] An adjusting groove 8 is provided inside the positioning frame 74. A zirconia ceramic frame 81 is slidably connected inside the adjusting groove 8 near the handle. A magnetic sheet 811 is fixed to one end of the zirconia ceramic frame 81 near the boom steel 5. A sliding groove 82 is provided on the top of the zirconia ceramic frame 81. A slider 83 is slidably connected inside the sliding groove 82. A second spring 84 is fixed to the top of the slider 83. One end of the second spring 84 is fixed to the top plate of the adjusting groove 8. A magnetic plate 85 is fixed inside the adjusting groove 8 on the side where the zirconia ceramic frame 81 is not provided. The magnetic properties of the magnetic plate 85 are opposite to those of the magnetic sheet 811.

[0053] On the basis of the first embodiment, when the present invention is in the process of locking the boom steel 5, that is, before entering the initial working state, the cylinder 6 is started by the controller, so that the cylinder 6 drives the limit seat 7 to lift up, so that the limit seat 7 drives the two-way lead screw 72 and the adjustment block 73 to lift up, and the adjustment block 73 drives the positioning frame 74 to lift up, until the limit seat 7 contacts the two boom steels 5, and then the limit seat 7 further supports the contact ends of the two boom steels 5, thereby making the surface of the boom steel 5 clamped by the adjustment seat 43 and supported by the limit seat 7, thereby improving the overall stability of the boom steel 5, and further improving the stability of the boom steel 5 when welding in an inclined state;

[0054] At the same time, after the limit seat 7 contacts with the boom steel 5, the two-way screw 72 is rotated to make the two-way screw 72 transmission adjustment block 73 and the positioning frame 74 move. In the initial working state, the two boom steels 5 are in an outward convex angle state close to the handle of the two-way screw 72. As the two-way screw 72 transmission adjustment block 73 and the positioning frame 74 move along the length direction of the limit seat 7, the positioning frame 74 gradually approaches the boom steel 5 until the positioning frame 74 contacts with the boom steel 5. At this time, the positioning frame 74 limits the two boom steels 5, thereby improving the accuracy of alignment of the two boom steels 5 and the accuracy of subsequent welding. After the contact ends of the two boom steels 5 are aligned, the adjusting seat 43 can be continued to be rotated in the steps of the first embodiment to complete the locking of the boom steel 5;

[0055] Further, after the boom steel 5 is locked and enters the initial working state, the contact end of the boom steel 5 is welded, and after the welding is completed, the motor 32 drives the gear plate 33 to drive the boom steel 5 to turn counterclockwise by 90 degrees, so that the present invention enters the first working state. In the first working state, the side of the two boom steels 5 close to the welding gun is in an inclined state, that is, the two boom steels 5 are in an inclined state, and at this time, the adjustment seat 43 is located on both sides of the boom steel 5;

[0056] Then, the cylinder 6 is controlled to be pushed out, so that the cylinder 6 continues to drive the limit seat 7 to be pushed up, so that the limit seat 7 drives the two-way lead screw 72 and the adjustment block 73 to be pushed up again, so that the limit seat 7 contacts the two boom steels 5 again, and the limit seat 7 supports the two boom steels 5 again, thereby further improving the stability of the boom steel 5 in the tilted state, and further improving the stability of the boom steel 5 during welding in the tilted state;

[0057] Furthermore, after the limit seat 7 supports the boom steel 5, the bidirectional lead screw 72 is rotated again, and the adjustment block 73 and the positioning frame 74 are driven by the bidirectional lead screw 72 to approach the direction of the boom steel 5 until the distance between the magnetic sheet 811 and the magnetic plate 85 is smaller than the length of the zirconia ceramic frame 81, and then the zirconia ceramic frame 81 is pulled up, so that the zirconia ceramic frame 81 drives the slider 83 to move in the vertical direction of the adjustment groove 8 inside the adjustment groove 8, so that the zirconia ceramic frame 81 moves to above the inclined surfaces of the two boom steels 5, and then the zirconia ceramic frame 81 is pushed toward the direction of the boom steel 5;

[0058] During the pushing process of the zirconia ceramic frame 81, the second spring 84 drives the slider 83 to reset, and the slider 83 drives the zirconia ceramic frame 81 to reset, and the zirconia ceramic frame 81 is blocked by the boom steel 5, so that the zirconia ceramic frame 81 is attached to the surface of the boom steel 5 until the zirconia ceramic frame 81 drives the magnetic piece 811 to resist and adsorb the magnetic plate 85, thereby completing the clamping of the zirconia ceramic frame 81. Since the zirconia ceramic frame 81 is attached to the inclined surface of the boom steel 5, when the welding gun is welding, the generated molten pool is intercepted by the zirconia ceramic frame 81, thereby avoiding the dripping of the molten pool in the first working state, thereby improving the quality of welding, and the magnetic piece 811 and the magnetic plate 85 are also located inside the positioning frame 74, thereby avoiding the influence of high temperature on magnetism.

[0059] Embodiment three:

[0060] Reference Figure 4On the basis of the first and second embodiments, before the present invention enters the third working state, the controller is first used to control the cylinder 6 to return, so that the cylinder 6 drives the limit seat 7 to return, so that the boom steel 5 has enough turning space. At this time, the two boom steels 5 are close to the welding gun on one side and are in a concave angle state, that is, the two boom steels 5 are close to the limit groove 71 on one side and are in an inclined state;

[0061] At this time, the cylinder 6 is controlled to be ejected through the controller, so that the cylinder 6 drives the limit seat 7 to be ejected. During the ejection process, the limit seat 7 gradually approaches the two boom-shaped steels 5 until it contacts the two boom-shaped steels 5. When the limit seat 7 contacts the two boom-shaped steels 5, the contact ends of the two boom-shaped steels 5 are clamped into the inside of the limit groove 71, and the surfaces of the two boom-shaped steels 5 are against the top of the limit seat 7, so that the limit seat 7 can provide auxiliary support for the two tilted boom-shaped steels 5 in the third working state, thereby improving the overall stability of the boom-shaped steels 5 and the stability of subsequent welding.

[0062] When the third working state is completed, the electric telescopic rod 45 can be controlled to start, so that the electric telescopic rod 45 drives the limiting circular plate 451 to lift the driven half ring 46 again, and the power supply to the magnetic block 471 is released, so that the magnetic tube 49 is reset under the action of the first spring 48, and the lock on the driven half ring 46 is lost. Then the driven half ring 46 can be rotated to restore the active half ring 4 to the open state, and then a new boom steel 5 can be replaced for welding.

[0063] 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 tower crane boom, comprising a base (1) and a moving assembly above the base (1), wherein the moving assembly can drive a welding gun connected below to move vertically and in the length direction of the base (1), and the welding device is controlled by a controller, characterized in that: A support seat (11) is fixed to a side of the base (1) away from the moving assembly, and a truss (2) is slidably connected to the outside of the support seat (11); The tops of both sides of the truss (2) are fixed with pillars (3), the tops of the pillars (3) are fixed with concave frames (31), one side of the inside of the concave frame (31) is fixed with a bracket, and the top of the bracket is fixed with a motor (32), the outside of the output shaft of the motor (32) is fixed with a gear plate (33), the inner walls of both sides of the concave frame (31) are fixed with limit blocks (34), and the inside of the concave frame (31) is provided with a lifting assembly, and the lifting assembly is used to lift the heavy arm component; The lifting assembly comprises an active half ring (4), the surface of the active half ring (4) is provided with an active ring groove (41), the active ring groove (41) is slidably connected to a limit block (34), a surface of the active half ring (4) away from the active ring groove (41) is fixed with teeth (42), the teeth (42) are meshed with a gear plate (33), the internal thread of the active half ring (4) is connected with an adjustment seat (43), and a disc is provided on the top of the adjustment seat (43); A boom steel (5) is placed on the top of the adjustment seat (43).

2. A welding device for a tower crane boom according to claim 1, characterized in that: Placement cavities (44) are provided at both ends of the active half ring (4), an electric telescopic rod (45) is fixed inside one of the placement cavities (44), a limiting circular plate (451) is fixed on the top of the output shaft of the electric telescopic rod (45), a driven half ring (46) is rotatably connected to the outside of the limiting circular plate (451), a slot (47) is provided inside the driven half ring (46) at one end away from the electric telescopic rod (45), and a magnetic block (471) is fixed inside the slot (47).

3. A welding device for a tower crane boom according to claim 2, characterized in that: A first spring (48) is fixed inside a placement cavity (44) close to one side of the card slot (47), and a magnetic tube (49) is fixed outside one end of the first spring (48). The magnetic properties of the magnetic tube (49) and the magnetic block (471) are opposite, and the magnetic tube (49) is slidably connected to the placement cavity (44) and the card slot (47).

4. A welding device for a tower crane boom according to claim 3, characterized in that: The outer shape of the driven half ring (46) is equal to that of the driving half ring (4), and they are arranged opposite to each other. A driven ring groove (461) is provided on the surface of the driven half ring (46). A tooth (42) is fixed on the surface of the driven half ring (46) away from the driven ring groove (461). The driven ring groove (461) is slidably connected to the limit block (34). The internal thread of the driven half ring (46) is connected to the adjustment seat (43).

5. A welding device for a tower crane boom according to claim 4, characterized in that: A cylinder (6) is fixed inside the support seat (11), and a limit seat (7) is fixed on the top of the output shaft of the cylinder (6).

6. A welding device for a tower crane boom according to claim 5, characterized in that: A limiting groove (71) is provided on the top of the limiting seat (7), and a bidirectional lead screw (72) is rotatably connected inside the limiting groove (71). One end of the bidirectional lead screw (72) passes through the limiting seat (7), and a handle is provided outside the end.

7. A welding device for a tower crane boom according to claim 6, characterized in that: The surfaces of both sides of the bidirectional lead screw (72) are threadedly connected with adjustment blocks (73), the adjustment blocks (73) are slidably connected with the limiting grooves (71), and positioning frames (74) are fixed on both sides of the top of the adjustment blocks (73).

8. The welding equipment for tower crane boom according to claim 7, characterized in that: The positioning frame (74) is provided with an adjustment groove (8) inside, and the adjustment groove (8) near the handle side is slidably connected with a ceramic frame (81) inside, and a magnetic sheet (811) is fixed to one end of the ceramic frame (81) near the boom steel (5), and a slide groove (82) is provided on the top of the ceramic frame (81), and a slider (83) is slidably connected inside the slide groove (82), and a second spring (84) is fixed to the top of the slider (83), and one end of the second spring (84) is fixed to the top plate of the adjustment groove (8), and a magnetic plate (85) is fixed inside the adjustment groove (8) on the side where the ceramic frame (81) is not provided, and the magnetic properties of the magnetic plate (85) are opposite to those of the magnetic sheet (811).

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