Efficient welding device for bridge bracket arm

Abstract

The invention discloses an efficient welding device for bridge supporting arms, and relates to the technical field of bridge supporting arm welding, the efficient welding device comprises a welding mechanism arranged on a top plate of a stand column, and the efficient welding device is provided with the welding mechanism, a movable sleeve plate with the hollow interior and a lifting assembly allowing the supporting arms of different sizes to be inserted into the sleeve plate; the supporting arm can be conveniently lifted, levelness alignment and clamping of the supporting arm are facilitated, positioning and stabilizing during follow-up welding are facilitated, meanwhile, the friction wheel on the lifting assembly can drive the bridge supporting arm to move towards the bridge stand column, and therefore one end of the bridge supporting arm is aligned on the bridge stand column; and meanwhile, the welding gun head on the welding module is aligned with the connecting end between the bridge supporting arm and the bridge stand column, simple welding between the bridge supporting arm and the bridge stand column is completed, positioning of the bridge supporting arm and synchronous fixing and alignment of a large number of the bridge supporting arms are rapidly completed, the overall positioning efficiency and effect are greatly improved, and the welding efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge support arm welding, in particular to a bridge support arm high-efficiency welding device. Background Art

[0002] The cable tray is an industrial product composed of brackets, brackets and installation accessories. The cable tray is divided into trough cable trays, tray cable trays, ladder cable trays, grid cable trays and other structures. It can be erected alone or laid on various buildings (structures) and pipe gallery brackets, reflecting the characteristics of simple structure, beautiful shape, flexible configuration and convenient maintenance. All parts need to be galvanized. If the bridge installed outside the building is near the sea or belongs to a corrosion zone, the material must have the physical properties of corrosion resistance, moisture resistance, good adhesion and high impact strength. For the civil construction process, the pole construction needs to be completed first so that the column can be installed on the structural force level. According to some actual needs, the bridge needs to be designed with multiple layers to improve the channel utilization rate and facilitate maintenance, so as to make more reasonable use of space. For the support of multi-layer bridges, each layer of the bridge needs to be supported by a separate bracket, and each separate bracket needs to be welded separately. The welding of the bracket needs to weld multiple brackets on the bridge columns in sequence according to the actual needs and the actual size. However, in the prior art, for the welding of the support arms, it is necessary to manually pick up the support arms and measure the distance to control the height of the support arms. However, the horizontality and height of the support arms are difficult to control, which is inconvenient in subsequent welding. At the same time, when multiple support arms need to be welded, it is difficult to complete the welding quickly and efficiently, and the overall welding efficiency is low and the effect is poor. Summary of the invention

[0003] The purpose of the present invention is to provide a high-efficiency welding device for a bridge support arm to solve the problems raised in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a welding mechanism arranged on the top plate of the column;

[0005] The welding mechanism includes a No. 1 slide rail provided on the top plate of the column, a No. 1 electric slider slidably provided in each of the No. 1 slide rails, a slider fixedly provided at one end of the No. 1 electric slider, a rotating plate rotatably provided on each pair of the sliders, a welding module provided on the rotating plate, a No. 1 electric push rod equidistantly arranged and fixedly provided at one end of the rotating plate away from the slider, the fixed end of the No. 1 electric push rod is fixedly connected to the rotating plate, the telescopic end of the No. 1 electric push rod is fixed to the corresponding sleeve plate, the sleeve plate is provided with an insertion groove, a No. 1 connecting plate is equidistantly arranged and fixedly provided on each of the sleeve plates, a fixed block is fixedly provided between each pair of the No. 1 connecting plates, a corresponding No. 1 screw is rotatably provided in each of the fixed blocks, a No. 1 motor is fixedly provided on each fixed block, and the motor shaft of the No. 1 motor is connected to the corresponding No. 1 screw The cam is fixedly connected, and each of the fixed blocks is slidably provided with a limit block, and each of the limit blocks is spirally transmitted with the corresponding No. 1 screw, and each of the limit blocks is fixedly provided with a sliding rod at one end away from the corresponding fixed block, and each pair of the sliding rods is rotatably provided with the same spline shaft, and a No. 2 motor is fixedly provided on the sliding rod, and the motor shaft of the No. 2 motor is fixedly connected to the spline shaft, and each pair of the sliding rods is fixedly provided with a limit shaft, and a corresponding lifting assembly is slidably provided on each of the limit shafts, and a No. 2 slide rail is also provided on the sleeve plate, and each of the No. 2 slide rails is equidistantly arranged and slidably provided with a No. 2 electric slider, and each of the No. 2 electric sliders is also fixedly provided with a telescopic rod at one end away from the No. 2 slide rail, and the fixed end of the telescopic rod is fixedly connected to the No. 2 electric slider, and the telescopic end of the telescopic rod is fixedly connected to the corresponding lifting assembly.

[0006] Preferably, the lifting assembly includes a No. 1 connecting plate fixedly connected to the telescopic end of the telescopic rod, the No. 1 connecting plate is fixedly connected to the corresponding No. 2 connecting plate, each pair of the No. 2 connecting plates is provided with a corresponding pulley, and the same pair of the pulleys is synchronously transmitted through the same transmission belt, the spline shaft is spline-connected to one of the pulleys in each pair, a clamping plate is fixedly provided at one end of the No. 2 connecting plate away from the No. 1 connecting plate, each of the clamping plates is equidistantly arranged with friction wheels for rotation, each of the clamping plates is also equidistantly arranged with supporting columns, and a No. 1 pressure sensor is also fixedly provided on the clamping plate.

[0007] Preferably, the welding module includes a No. 3 slide rail provided on the rotating plate, a No. 4 slide rail is also provided on the rotating plate, a slide rail plate is slidably provided in the No. 4 slide rail, an electric slider is provided on the slide plate close to the No. 3 slide rail, the electric slider is slidably arranged in the No. 3 slide rail, a No. 3 electric slider is slidably provided in the slide rail plate, a No. 2 pressure sensor is provided in the No. 3 electric slider, a welding head is fixedly provided on the No. 2 pressure sensor, the slide rail plate is fixedly connected to the telescopic end of the No. 2 electric push rod, the fixed end of the No. 2 electric push rod is fixedly connected to the electric slider in the No. 3 slide rail, and the welding head is connected to the welding wire.

[0008] Preferably, a No. 1 slide groove is further provided on the top plate of the column, a No. 3 electric push rod is slidably provided in the No. 1 slide groove, a No. 2 slide groove is further provided on the top plate of the column, a limit slider is slidably provided in each of the No. 2 slide grooves, the limit slider is fixedly connected to the fixed end of the No. 3 electric push rod, the telescopic end of the No. 3 electric push rod is fixedly connected to the slider, a No. 3 motor is also fixedly provided on one of the sliders in each pair of the sliders, and the motor shaft of the No. 3 motor is fixedly connected to the rotating plate.

[0009] Preferably, a lifting block is fixedly provided on a side of the column top plate away from the rotating plate, a No. 1 fixed plate is fixedly provided on the lifting block, a counterweight block is provided below the lifting block, a No. 2 fixed plate is fixedly provided on the counterweight block, a No. 3 fixed plate is also fixedly provided on the No. 2 fixed plate, the other end of the No. 3 fixed plate is fixedly connected to the No. 4 fixed plate, a No. 2 screw is rotatably provided on the No. 2 fixed plate, the No. 2 screw is spirally transmitted with the No. 1 fixed plate, the No. 4 fixed plate is slidably connected with the lifting block, a No. 4 motor is fixedly provided on the No. 2 fixed plate, the motor shaft of the No. 4 motor is fixedly connected with the No. 2 screw, and No. 2 connecting plates are equidistantly arranged and fixed on the counterweight block, each of the No. 2 connecting plates is also rotatably provided with a universal wheel, and the universal wheel has a locking function, and a control terminal is provided on the lifting block.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the present invention sets a welding mechanism and sets a movable sleeve plate with a hollow interior, so that support arms of different sizes can be inserted into the lifting assembly therein, which facilitates the lifting of the support arm, as well as the alignment and clamping of the horizontality of the support arm, and facilitates the positioning and stabilization during subsequent welding. At the same time, the friction wheel on the lifting assembly will drive the bridge support arm to move toward the bridge column, so that one end of the bridge support arm is aligned on the bridge column, and at the same time, the welding gun head on the welding module is aligned with the connecting end between the bridge support arm and the bridge column, and simple welding between the bridge support arm and the bridge column is completed, so that the positioning of the bridge support arm and the synchronous fixation and alignment of multiple quantities can be quickly completed, thereby greatly improving the overall positioning efficiency and effect, and greatly improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a first overall structure in an open state of an embodiment of the present invention;

[0012] Figure 2 It is a schematic diagram of a second overall structure in an open state of an embodiment of the present invention;

[0013] Figure 3 It is a schematic diagram of a third overall structure in an open state of an embodiment of the present invention;

[0014] Figure 4 It is a schematic diagram of the overall structure of an embodiment of the present invention in a folded state;

[0015] Figure 5 For the embodiment of the present invention Figure 1 The enlarged schematic diagram at A in the middle;

[0016] Figure 6 For the embodiment of the present invention Figure 1 The enlarged schematic diagram of point B in the middle;

[0017] Figure 7 For the embodiment of the present invention Figure 2 The enlarged schematic diagram at C in the middle;

[0018] Figure 8 For the embodiment of the present invention Figure 3 The enlarged schematic diagram at D in the middle;

[0019] Fig. 9 For the embodiment of the present invention Figure 4 The enlarged schematic diagram at E in the middle;

[0020] In the figure: 11, column top plate; 12, No. 1 slide rail; 13, No. 1 slide slot; 14, No. 2 slide slot; 15, rotating plate; 16, sleeve plate; 17, No. 3 motor; 18, counterweight block; 19, No. 2 connecting plate; 20, universal wheel; 21, No. 1 electric push rod; 22, insertion slot; 23, lifting block; 24, control terminal; 25, No. 4 motor; 26, No. 2 fixed plate; 27, No. 2 screw; 28, No. 1 fixed plate; 29, No. 4 fixed plate; 30, No. 3 fixed plate; 31, fixed block; 32, No. 1 connecting plate; 33, No. 1 motor; 34, slide rod; 35, No. 2 motor; 36, spline shaft; 37, limit shaft; 38, No. 2 No. 1 slide rail; 39, No. 2 electric slide block; 40, telescopic rod; 41, No. 1 connecting plate; 42, transmission belt; 43, No. 2 connecting plate; 44, clamping plate; 45, supporting column; 46, friction wheel; 47, No. 1 pressure sensor; 48, No. 3 slide rail; 49, No. 4 slide rail; 50, slide plate; 51, No. 3 electric slide block; 52, No. 2 pressure sensor; 53, welding head; 54, No. 2 electric push rod; 55, slider; 56, No. 3 electric push rod; 57, No. 1 electric slide block; 58, limit slider; 59, No. 1 screw; 60, limit block; 61, pulley; 62, lifting assembly; 63, welding module; 71, welding mechanism. DETAILED DESCRIPTION

[0021] 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.

[0022] Combined with Figure 1-Figure 9 , the bridge support arm efficient welding device comprises a welding mechanism 71 arranged on the column top plate 11;

[0023] The welding mechanism 71 includes a No. 1 slide rail 12 provided on the column top plate 11, a No. 1 electric slider 57 is slidably provided in each of the No. 1 slide rails 12, a slider 55 is fixedly provided at one end of the No. 1 electric slider 57, a rotating plate 15 is rotatably provided on each pair of the sliders 55, a welding module 63 is provided on the rotating plate 15, and the welding module 63 is used for preliminary basic welding stability, and a No. 1 electric push rod 21 is equidistantly arranged and fixed at one end of the rotating plate 15 away from the slider 55, and the No. 1 electric push rod 21 is fixedly provided at one end of the rotating plate 15 away from the slider 55. The fixed end of the No. 1 electric push rod 21 is fixedly connected to the rotating plate 15, and the telescopic end of the No. 1 electric push rod 21 is fixed to the corresponding sleeve plate 16. The sleeve plate 16 is provided with an insertion groove 22, and the insertion groove 22 is used to facilitate the bridge support arm to extend therein. Each sleeve plate 16 is evenly arranged and fixed with a No. 1 connecting plate 32, and a fixed block 31 is fixed between each pair of the No. 1 connecting plates 32. A corresponding No. 1 screw 59 is rotatably provided in each of the fixing blocks 31, and a No. 1 motor 33 is fixed on each of the fixing blocks 31. The motor shaft of the No. 1 motor 33 is fixedly connected to the corresponding No. 1 screw 59, and a limit block 60 is slidably provided in each of the fixed blocks 31. Each of the limit blocks 60 is spirally driven with the corresponding No. 1 screw 59, and a slide bar 34 is fixedly provided at one end of each limit block 60 away from the corresponding fixed block 31. The same spline shaft 36 is rotatably provided on each pair of the slide bars 34, and a No. 2 motor 35 is fixedly provided on the slide bar 34. The motor shaft of the No. 2 motor 35 is fixedly connected to the spline shaft 36, and each pair of the slide bars A limit shaft 37 is fixed on the rod 34, and a corresponding lifting component 62 is slidably provided on each of the limit shafts 37. A No. 2 slide rail 38 is also provided on the sleeve plate 16, and a No. 2 electric slider 39 is slidably arranged at an equal distance on each of the No. 2 slide rails 38. A telescopic rod 40 is fixed at one end of each No. 2 electric slider 39 away from the No. 2 slide rail 38, and the fixed end of the telescopic rod 40 is fixedly connected to the No. 2 electric slider 39, and the telescopic end of the telescopic rod 40 is fixedly connected to the corresponding lifting component 62.

[0024] Advantageously, the lifting assembly 62 includes a No. 1 connecting plate 41 fixedly connected to the telescopic end of the telescopic rod 40, the No. 1 connecting plate 41 is fixedly connected to the corresponding No. 2 connecting plate 43, and a corresponding pulley 61 is provided between each pair of the No. 2 connecting plates 43. The same pair of the pulleys 61 are synchronously transmitted through the same transmission belt 42, and the surface of the transmission belt 42 has a certain degree of roughness. The spline shaft 36 is spline-connected to one of the pulleys 61 in each pair, and the No. 2 connecting plate 43 is away from the No. 1 connecting plate 41. A clamping plate 44 is fixedly provided at one end, and friction wheels 46 are rotatably arranged at equal intervals on each of the clamping plates 44. The surface of each friction wheel 46 has a certain degree of roughness, and the friction wheel 46 is used to drive the bridge support arm. Supporting columns 45 are also equidistantly arranged on each of the clamping plates 44, and the supporting columns 45 are used to support the bridge support arm. The arrangement of each pair of supporting columns 45 is not aligned, so that the interspersed arrangement does not affect the mutual gathering of the supporting columns 45. A No. 1 pressure sensor 47 is also fixedly provided on the clamping plate 44.

[0025] Advantageously, the welding module 63 includes a No. 3 slide rail 48 provided on the rotating plate 15, and a No. 4 slide rail 49 is also provided on the rotating plate 15. A slide rail plate 50 is slidably provided in the No. 4 slide rail 49, and an electric slider is provided on the slide rail plate 50 in a direction close to the No. 3 slide rail 48, and the electric slider is slidably arranged in the No. 3 slide rail 48. A No. 3 electric slider 51 is slidably provided in the slide rail plate 50, and a No. 2 pressure sensor 52 is provided in the No. 3 electric slider 51, and a welding head 53 is fixedly provided on the No. 2 pressure sensor 52. The slide rail plate 50 is fixedly connected to the telescopic end of the No. 2 electric push rod 54, and the fixed end of the No. 2 electric push rod 54 is fixedly connected to the electric slider in the No. 3 slide rail 48, and the welding head 53 is connected to the welding wire.

[0026] Advantageously, the column top plate 11 is further provided with a No. 1 slide groove 13, in which a No. 3 electric push rod 56 is slidably provided, and the column top plate 11 is further provided with a No. 2 slide groove 14, in which each of the No. 2 slide grooves 14 is slidably provided with a limit slider 58, the limit slider 58 is fixedly connected to the fixed end of the No. 3 electric push rod 56, the telescopic end of the No. 3 electric push rod 56 is fixedly connected to the slider 55, and a No. 3 motor 17 is also fixedly provided on one of the sliders 55 in each pair of the sliders 55, and the motor shaft of the No. 3 motor 17 is fixedly connected to the rotating plate 15.

[0027] Advantageously, a lifting block 23 is fixedly provided on one side of the column top plate 11 away from the rotating plate 15, a No. 1 fixed plate 28 is fixedly provided on the lifting block 23, a counterweight block 18 is provided below the lifting block 23, a No. 2 fixed plate 26 is fixedly provided on the counterweight block 18, a No. 3 fixed plate 30 is fixedly provided on the No. 2 fixed plate 26, the other end of the No. 3 fixed plate 30 is fixedly connected to the No. 4 fixed plate 29, a No. 2 screw 27 is rotatably provided on the No. 2 fixed plate 26, and the No. 2 screw 27 is rotatably connected to the No. 1 fixed plate The plate 28 is spirally driven, the fourth fixed plate 29 is slidably connected to the lifting block 23, the No. 4 motor 25 is fixedly arranged on the No. 2 fixed plate 26, and the motor shaft of the No. 4 motor 25 is fixedly connected to the No. 2 screw 27, and the No. 2 connecting plates 19 are equidistantly arranged and fixed on the counterweight block 18, and each of the No. 2 connecting plates 19 is also rotatably provided with a universal wheel 20, and the universal wheel 20 has a locking function. The lifting block 23 is provided with a control terminal 24, and the control terminal 24 is used to control all motors, electric sliders, and electric push rods.

[0028] Method of use of the present invention:

[0029] In the initial state:

[0030] The universal wheel 20 is not locked, the lifting block 23 is in contact with the counterweight block 18, the No. 2 electric push rod 54 and the No. 3 electric push rod 56 are in a retracted state, the welding head 53 is connected to the welding wire, the No. 1 electric slider 57 is at the outermost end on the column top plate 11, the telescopic rod 40 is in a retracted state, and the limit blocks 60 are at both ends of the fixed block 31.

[0031] When the user needs to use the device, the user needs to move the device to the vicinity of the bridge column on which welding is completed, and then the user further moves the device so that the side of the column top plate 11 away from the lifting block 23 is in contact with the side of the bridge column away from the bridge support arm to be welded. The user roughly aligns the center of the column top plate 11 with the bridge column and manually locks the universal wheel 20. Then the user needs to confirm the number of bridge support arms to be welded on a single bridge column, and place the bridge support arms to be welded between the clamping plates 44 of different heights in sequence (and must be inserted into the insertion slot 22 and pass through the sleeve plate 16), and place the bridge support arms to be welded between a pair of the supporting columns 45. After confirming that the bridge support arm is placed in the correct direction and the four directions of the bridge support arm are consistent with the requirements during welding, the next step can be continued. After the user has placed all the bridge support arms that need to be welded on a single bridge column, the fourth motor 25 can be started through the control terminal 24. After the fourth motor 25 is started, its motor shaft will drive the second screw rod 27 to rotate, thereby driving the lifting block 23 to rise. The user can control the rising height of the lifting block 23 according to actual needs, and then the user starts the third motor 17 through the control terminal 24. After the third motor 17 is started, its motor shaft will drive the corresponding rotating plate 15 to rotate 90°, so that the device is Figure 1 Transformed into Figure 4state, and then the user starts the No. 1 electric slider 57 through the control terminal 24. After the No. 1 electric slider 57 is started, it will drive the slider 55 to move, thereby driving the rotating plate 15 and the sleeve plate 16 to move. The user is required to complete the adjustment of the position of the rotating plate 15 according to the actual size of the bridge column. When the user completes the basic adjustment, the user is required to start the No. 1 electric push rod 21 on one side through the control terminal 24. When the corresponding No. 1 electric push rod 21 starts to start, the extension of the corresponding No. 1 electric push rod 21 will drive the movement of the sleeve plate 16 until the center point of the sleeve plate 16 is roughly aligned with the center point of the bridge column. The user can stop the corresponding The No. 1 electric push rod 21 is extended. At this time, the user needs to enter the number and height of the bridge support arms that need to be welded to a single bridge column into the control terminal 24, and start the corresponding No. 2 electric slider 39 through the control terminal 24, so as to complete the adjustment of the height of the No. 2 electric slider 39, thereby driving the single lifting component 62 to be adjusted to a suitable height in accordance with actual needs, and then the user starts the welding mechanism 71 through the control terminal 24. After the welding mechanism 71 is started, the No. 1 motor 33 will be started under the action of the control terminal 24. After the No. 1 motor 33 is started, its motor shaft will drive the No. 1 screw 59 to rotate, and the No. 1 screw 59 will drive the same fixed block 3 1, the limit blocks 60 on the upper and lower parts of the frame 30 are brought together, so that the movement of the limit blocks 60 will drive the slide bars 34 to gather together, thereby driving the spline shaft 36 and the limit shaft 37 to move, thereby driving the same pair of the clamping plates 44 and the supporting columns 45 to gather together, thereby driving the bridge support arm on the supporting column 45 to move, and as the clamping plates 44 and the supporting columns 45 gather together, the two sides of the bridge support arm on the supporting column 45 will gradually contact the clamping plates 44, and the clamping plates 44, the friction wheels 46, and the No. 1 pressure sensor 47 will further contact the bridge support arm as the clamping plates 44 gather together. When the bridge support arm on the clamping plate 44 on one side is in contact with the No. 1 pressure sensor 47, After the touch, the No. 1 pressure sensor 47 will be subjected to pressure, and the detected value will change. As the clamping plate 44 and the supporting column 45 are further gathered together under the action of the No. 1 screw 59 and the limit block 60, until the No. 1 pressure sensors 47 on the same pair of the clamping plates 44 are subjected to pressure at the same time and the detected values ​​are consistent, the No. 1 pressure sensor 47 will transmit a signal to the control terminal 24. After receiving the signal transmitted by the No. 1 pressure sensor 47, the control terminal 24 will stop driving the No. 1 motor 33, thereby stopping the contraction of the clamping plate 44 and the supporting column 45, and completing the limiting, lifting and alignment of the bridge support arm by the clamping plate 44 and the supporting column 45.At the same time, due to the limitation of the supporting column 45, the bridge support arm is always kept horizontal to avoid the bridge support arm from being tilted. As the limiting block 60 moves, the telescopic rod 40 will also be stretched, and then the control terminal 24 will start the No. 2 motor 35. After the No. 2 motor 35 is started, its motor shaft will drive the spline shaft 36 to rotate, thereby driving the corresponding pulley 61 to rotate through the spline shaft 36, thereby driving the transmission belt 42 to transmit, thereby driving the friction wheel 46 to rotate through the friction force between the transmission belt 42 and the friction wheel 46, thereby driving the support column 45 between the clamping plates 44 and the support column 45. The bridge support arm above moves toward the bridge column, and as the spline shaft 36 continues to rotate, each bridge support arm will be against the bridge column under the action of the friction wheel 46, and the No. 2 motor 35 will stop automatically after a certain period of time, and then the welding module 63 will be started under the action of the control terminal 24. After the welding module 63 is started, the electric slider on the No. 2 electric push rod 54 will drive the slide plate 50 to slide up and down on the No. 3 slide rail 48. After the slide rail plate 50 reaches the height position entered in advance, the No. 2 electric push rod 54 will be started under the action of the control terminal 24. After the No. 2 electric push rod 54 is started, it will drive the slide plate 5 0 is extended, so that the slide plate 50 moves out of the range of the No. 4 slide rail 49, and when the welding head 53 contacts the connection between the bridge support arm and the bridge column, the No. 2 pressure sensor 52 will be subjected to pressure, and at this time, the No. 2 pressure sensor 52 will transmit a signal to the control terminal 24. After receiving the signal transmitted by the No. 2 pressure sensor 52, the control terminal 24 will start the corresponding welding head 53. At this time, the welding head 53 starts to cooperate with the electric slider in the No. 3 slide rail 48 to complete the preliminary welding of the bridge support arm and the bridge column (and in this process, the user can place the next batch of materials to be welded on the clamping plate 44 and the supporting column 45 on the other side). The bridge support arm is welded, and the user needs to reassign staff to perform complete welding in the future to ensure the stability of the bridge support arm). Then the No. 1 motor 33 will be started under the action of the control terminal 24. After the No. 1 motor 33 is started, the limit block 60 drives the slide bar 34 to reset, thereby resetting the lifting assembly 62. Then the No. 3 motor 17 is started under the action of the control terminal 24, thereby driving the rotating plate 15 to rotate and reset. Then the user manually unlocks the universal wheel 20 and moves the device to the next bridge column where the bridge support arm needs to be welded. This reciprocating process can greatly improve the welding positioning and welding efficiency of the bridge support arm.

[0032] 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 high-efficiency welding device for a bridge support arm, comprising a welding mechanism (71) arranged on a column top plate (11), characterized in that: The welding mechanism (71) comprises a No. 1 slide rail (12) provided on the column top plate (11), a No. 1 electric slider (57) being slidably provided in each of the No. 1 slide rails (12), a slider (55) being fixedly provided at one end of the No. 1 electric slider (57), a rotating plate (15) being rotatably provided on each pair of the sliders (55), a welding module (63) being provided on the rotating plate (15), a No. 1 electric push rod (21) being equidistantly arranged and fixedly provided at one end of the rotating plate (15) away from the slider (55), the fixed end of the No. 1 electric push rod (21) being connected to the The rotating plate (15) is fixedly connected, the telescopic end of the No. 1 electric push rod (21) is fixed to the corresponding sleeve plate (16), the sleeve plate (16) is provided with an insertion groove (22), each sleeve plate (16) is evenly arranged and fixed with a No. 1 connecting plate (32), a fixed block (31) is fixed between each pair of the No. 1 connecting plates (32), each of the fixed blocks (31) is rotatably provided with a corresponding No. 1 screw (59), each of the fixed blocks (31) is fixedly provided with a No. 1 motor (33), the motor shaft of the No. 1 motor (33) is connected to the corresponding No. 1 screw (59) is fixedly connected, a limit block (60) is slidably provided in each of the fixed blocks (31), each of the limit blocks (60) is screw-driven with the corresponding No. 1 screw rod (59), a slide bar (34) is fixedly provided at one end of each of the limit blocks (60) away from the corresponding fixed block (31), a same spline shaft (36) is rotatably provided on each pair of the slide bars (34), a No. 2 motor (35) is fixedly provided on the slide bars (34), the motor shaft of the No. 2 motor (35) is fixedly connected with the spline shaft (36), and a limit block (60) is fixedly provided on each pair of the slide bars (34) A limiting axis (37), each of the limiting axes (37) is slidably provided with a corresponding lifting assembly (62), a No. 2 slide rail (38) is also provided on the sleeve plate (16), each of the No. 2 slide rails (38) is equidistantly arranged and slidably provided with a No. 2 electric slider (39), and a telescopic rod (40) is fixedly provided at one end of each No. 2 electric slider (39) away from the No. 2 slide rail (38), the fixed end of the telescopic rod (40) is fixedly connected to the No. 2 electric slider (39), and the telescopic end of the telescopic rod (40) is fixedly connected to the corresponding lifting assembly (62).

2. A bridge support arm high-efficiency welding device according to claim 1, characterized in that: The lifting assembly (62) includes a No. 1 connecting plate (41) fixedly connected to the telescopic end of the telescopic rod (40), the No. 1 connecting plate (41) is fixedly connected to the corresponding No. 2 connecting plate (43), each pair of the No. 2 connecting plates (43) is provided with a corresponding pulley (61), and the same pair of the pulleys (61) are synchronously transmitted through the same transmission belt (42), the spline shaft (36) is spline-connected to one of the pulleys (61) in each pair, a clamping plate (44) is fixedly provided at one end of the No. 2 connecting plate (43) away from the No. 1 connecting plate (41), each of the clamping plates (44) is equidistantly arranged and rotatably provided with friction wheels (46), each of the clamping plates (44) is also equidistantly arranged with supporting columns (45), and a No. 1 pressure sensor (47) is also fixedly provided on the clamping plate (44).

3. The bridge support arm high-efficiency welding device according to claim 1 is characterized in that: The welding module (63) comprises a No. 3 slide rail (48) provided on the rotating plate (15), and a No. 4 slide rail (49) is also provided on the rotating plate (15), a slide rail plate (50) is slidably provided in the No. 4 slide rail (49), an electric slider is provided in the direction of the slide rail plate (50) close to the No. 3 slide rail (48), and the electric slider is slidably provided in the No. 3 slide rail (48), a No. 3 electric slider (51) is slidably provided in the slide rail plate (50), a No. 2 pressure sensor (52) is provided in the No. 3 electric slider (51), a welding head (53) is fixedly provided on the No. 2 pressure sensor (52), the slide rail plate (50) is fixedly connected to the telescopic end of the No. 2 electric push rod (54), the fixed end of the No. 2 electric push rod (54) is fixedly connected to the electric slider in the No. 3 slide rail (48), and the welding head (53) is connected to the welding wire.

4. The bridge support arm high-efficiency welding device according to claim 1 is characterized in that: The column top plate (11) is also provided with a No. 1 slide groove (13), in which a No. 3 electric push rod (56) is slidably arranged. The column top plate (11) is also provided with a No. 2 slide groove (14), in which each No. 2 slide groove (14) is slidably arranged a limit slider (58), and the limit slider (58) is fixedly connected to the fixed end of the No. 3 electric push rod (56).

5. A bridge support arm high-efficiency welding device according to claim 4, characterized in that: The telescopic end of the third electric push rod (56) is fixedly connected to the slider (55), and a third motor (17) is fixedly provided on one of the sliders (55) in each pair of the sliders (55), and the motor shaft of the third motor (17) is fixedly connected to the rotating plate (15).

6. The bridge support arm high-efficiency welding device according to claim 4 is characterized in that: A lifting block (23) is fixedly provided on a side of the column top plate (11) away from the rotating plate (15), a first fixing plate (28) is fixedly provided on the lifting block (23), a counterweight block (18) is provided below the lifting block (23), a second fixing plate (26) is fixedly provided on the counterweight block (18), a third fixing plate (30) is fixedly provided on the second fixing plate (26), and the other end of the third fixing plate (30) is fixedly connected to the fourth fixing plate (29).

7. A bridge support arm high-efficiency welding device according to claim 6, characterized in that: A No. 2 screw rod (27) is rotatably provided on the No. 2 fixed plate (26), and the No. 2 screw rod (27) is screw-driven with the No. 1 fixed plate (28). The No. 4 fixed plate (29) is slidably connected with the lifting block (23), and a No. 4 motor (25) is fixedly provided on the No. 2 fixed plate (26).

8. The bridge support arm high-efficiency welding device according to claim 7 is characterized in that: The motor shaft of the No. 4 motor (25) is fixedly connected to the No. 2 screw rod (27), and No. 2 connecting plates (19) are evenly arranged and fixed on the counterweight block (18). Each of the No. 2 connecting plates (19) is also rotatably provided with a universal wheel (20), and the universal wheel (20) has a locking function. A control terminal (24) is provided on the lifting block (23).

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