Environment-friendly welding device for consumable electrode bar

Abstract

The utility model relates to an environment-friendly welding device for a consumable electrode bar, which comprises a consumable electrode carrier roller part and a movable end carrier roller part, the consumable electrode carrier roller part is of a split structure and comprises a fixed end carrier roller part and a movable end carrier roller part, the fixed end carrier roller part comprises a fixed end carrier roller, and the fixed end carrier roller rotates to drive the consumable electrode bar supported by the fixed end carrier roller to rotate; the movable end carrier roller part comprises a movable end carrier roller; the consumable electrode bar is straightly supported by the fixed end carrier roller and the movable end carrier roller; the auxiliary electrode conveying part comprises an auxiliary electrode bracket; a frame-type welding part; a centering structure part; and a control unit. Automatic rotation of the consumable electrode during welding and centering adjustment of the auxiliary electrode and the consumable electrode can be achieved, and automatic welding is achieved through matching of the frame type welding part. The welding cleaning part is arranged on the frame type welding part in a matched mode, welding flux and welding smoke can be safely and effectively adsorbed and recycled during welding, and the operation environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrode rod welding technology, and in particular to an environmentally friendly welding device for consumable electrode rods. Background Technology

[0002] Vacuum arc remelting furnaces are mainly used to melt reactive and refractory metals such as titanium and zirconium. They are also used in the production of precision alloys and high-temperature alloys. It is one of the important remelting and refining methods, and the main raw material is a vacuum induction electrode. Typically, the metal is first smelted and cast into electrodes using a vacuum induction furnace, and then remelted into ingots using a vacuum arc remelting furnace. This process can improve the plasticity, high-temperature creep strength, and fatigue strength of high-temperature alloys.

[0003] Currently, vacuum arc furnace equipment has a tonnage of 6-12t, with a maximum of 25t, and the largest ingot size reaches a diameter of [missing information]. The length is approximately 4000mm. Correspondingly, the maximum size of the consumable electrode rod can reach approximately... The length is 3000mm or more. Before entering the consumable electrode furnace for melting, the electrode will undergo a peeling process. The surface precision of the electrode must be guaranteed, and the end of the consumable electrode can be considered to be perfectly round.

[0004] The auxiliary electrode, as one of the main production accessories in vacuum consumable metallurgical (WMI) production, is used to connect to and hold the consumable electrode, while also ensuring current conduction during melting. To meet the requirements of WMI furnace melting, the vacuum induction electrode, as the end of the consumable electrode, needs to be welded to the auxiliary electrode. Typically, the auxiliary electrode and the consumable electrode are connected by external welding, and the welding precision must be guaranteed to prevent contact with the crystallizer sidewall when the consumable ingot enters the crystallizer, which could cause side arcing and affect the melting quality. The welded electrode does not directly participate in the melting process and can be reused.

[0005] Large-scale smelting production requires a significant amount of welding work. Traditional electrode welding relies on manual operation. Current manual welding methods use small support fixtures, with operators performing the welding work on the ground. This manual welding method involves an overhead crane assisting in electrode adjustment and welding. Ground-based manual electrode welding relies heavily on manual adjustment of the auxiliary electrode and electrode rod, with frequent use of the overhead crane. This is particularly difficult and inefficient for welding large electrodes. It depends entirely on the operator's experience, making it difficult to guarantee accuracy. Furthermore, the manual welding workshop environment is poor, and prolonged exposure to welding fumes and harmful gases can easily lead to welder's pneumoconiosis.

[0006] An existing electrode welding auxiliary device uses a multi-roller structure to support both the consumable electrode and the auxiliary electrode. A diameter gauge measures the diameter difference from the top, and a separate welding robot is used during welding. This device has the following drawbacks: 1) Due to its concentrated structure, maintenance is difficult in case of malfunction; the foundation is complex; 2) The diameter gauge is located at the top of the welding area, and the robot can only perform welding from the side, requiring both the dummy electrode rollers and the consumable electrode rollers to rotate synchronously. This results in a complex control system; failure to achieve synchronous rotation leads to flux accumulation during welding; 3) The length of the workpiece directly affects the length of the roller conveyor, impacting the economic efficiency for large or long workpieces; 4) The flux requires manual cleaning; if it enters the smelting process, it will affect product quality; 5) Welding cannot prevent the leakage of fumes and dust, polluting the environment.

[0007] Therefore, based on years of experience and practice in related industries, the inventor proposes an environmentally friendly welding device for consumable electrode rods to overcome the shortcomings of existing technologies. Utility Model Content

[0008] The purpose of this invention is to provide an environmentally friendly welding device for consumable electrode rods. This invention enables automatic rotation of the consumable electrode during welding, alignment adjustment between the auxiliary electrode and the consumable electrode, and automatic welding through the cooperation of a frame-type welding section. The frame-type welding section is equipped with a welding cleaning section, which can safely and effectively absorb and recover flux and welding fumes during welding, improving the operating environment.

[0009] The purpose of this utility model is achieved as follows: an environmentally friendly welding device for a consumable electrode rod, comprising:

[0010] The consumable electrode support roller section is configured in a split structure, including a fixed end support roller section and a movable end support roller section that can move relative to the fixed end support roller section. The fixed end support roller section includes a pair of fixed end support rollers that can be adjusted laterally, and the fixed end support rollers can rotate about a central axis to drive the consumable electrode rod they support to rotate. The movable end support roller section includes a pair of movable end support rollers that can be adjusted laterally. The fixed end support rollers and the movable end support rollers are arranged axially opposite each other to support the consumable electrode rod in a straight line.

[0011] An auxiliary electrode delivery section for conveying and supporting auxiliary electrodes includes an auxiliary electrode bracket that can adjustably support the auxiliary electrodes;

[0012] The frame-type welding unit includes a gantry frame that can be moved across the consumable electrode roller unit or the auxiliary electrode conveying unit. The gantry frame is equipped with a welding cleaning unit and a welding torch that can be raised and lowered.

[0013] The centering structure includes a centering signal receiving unit disposed on one side of the fixed end roller and a laser signal emitting unit disposed on one side of the auxiliary electrode bracket. The centering signal receiving unit receives the laser signal emitted by the laser signal emitting unit to center and adjust the auxiliary electrode.

[0014] The control unit is electrically connected to the consumable electrode roller unit, the auxiliary electrode conveying unit, the frame welding unit, and the centering structure unit.

[0015] In a preferred embodiment of the present invention, the auxiliary electrode conveying unit includes a conveying vehicle body that can move axially along the fixed end roller part, a lifting plate that can be raised and lowered is provided above the conveying vehicle body, a bracket support plate that can be adjusted laterally is provided on the lifting plate, and the auxiliary electrode bracket that is hinged above the bracket support plate and whose angle with the horizontal direction can be adjusted is hinged to the bracket support plate.

[0016] In a preferred embodiment of this utility model, a lifting hydraulic cylinder for driving the lifting of the auxiliary electrode bracket is connected below the lifting plate. A stroke encoder is installed inside the lifting hydraulic cylinder and is electrically connected to the control unit. A vertical guide hole is provided on the conveyor body. A guide rod extending downward is connected to the bottom end of the lifting plate and can slide up and down along the guide hole.

[0017] A translational hydraulic cylinder for laterally adjusting the auxiliary electrode bracket is connected between the lifting plate and the bracket support plate; a slide rail is arranged laterally on the lifting plate, and a slide groove is arranged laterally at the bottom end of the bracket support plate, the slide groove being slidably fitted onto the slide rail.

[0018] One end of the auxiliary electrode bracket is hinged to the bracket support plate, and the other end of the auxiliary electrode bracket is connected to an angle adjustment hydraulic cylinder, the bottom end of which is connected to the bracket support plate.

[0019] In a preferred embodiment of this utility model, the lifting plate is provided with a transmitter bracket on the side of the auxiliary electrode bracket away from the fixed end roller. The transmitter bracket is provided with a mounting slot, and the laser signal emitting part is adjustablely mounted in the mounting slot.

[0020] In a preferred embodiment of this utility model, an auxiliary electrical limit block is provided at one end of the auxiliary electrode bracket, and a pressure sensor is provided at the end of the auxiliary electrical limit block. The pressure sensor is electrically connected to the control unit. When the auxiliary electrode contacts the consumable electrode rod, the pressure sensor transmits a signal to the control unit.

[0021] In a preferred embodiment of the present invention, a driving unit is connected to the conveyor body to drive the conveyor body to move. The driving unit includes an electro-hydraulic push rod or a moving hydraulic cylinder connected to the bottom end of the conveyor body. The electro-hydraulic push rod or the moving hydraulic cylinder is sunk below the ground.

[0022] In a preferred embodiment of this utility model, the fixed-end roller portion includes a fixed-end roller frame fixedly connected to the ground. A pair of movably mounted fixed-end roller seats are arranged laterally on the fixed-end roller frame, and the fixed-end rollers are hinged to the fixed-end roller seats. A rotation drive unit is connected to the fixed-end roller, the rotation drive unit including a drive motor. A transmission sprocket is provided on one side of the fixed-end roller frame, and a driven sprocket is provided at one axial end of the fixed-end roller. The drive motor is connected to the transmission sprocket via a first transmission chain, and the transmission sprocket is connected to the driven sprocket via a second transmission chain. The drive motor drives the fixed-end rollers to rotate in the same direction via the transmission sprocket and the driven sprocket. A rotary encoder is provided on the drive motor, and the rotary encoder is electrically connected to the control unit.

[0023] In a preferred embodiment of this utility model, a support base is provided on the fixed end roller frame, and a receiver mounting frame is hinged on the support base. The centering signal receiving part is disposed on the receiver mounting frame. A swing hydraulic cylinder is hinged on the fixed end roller frame, and one end of the swing hydraulic cylinder is hinged to the receiver mounting frame to drive the receiver mounting frame and the centering signal receiving part to swing.

[0024] In a preferred embodiment of the present invention, the movable end roller portion includes a movable roller frame, on which a pair of movable end roller seats are arranged that can move laterally, and the movable end roller is hinged to the movable end roller seat; a travel motor is connected to the movable roller frame, and the travel motor drives the movable end roller portion to move through a drive chain; the travel motor is electrically connected to the control unit.

[0025] In a preferred embodiment of the present invention, a lifting welding arm is provided on the gantry frame, and the welding arm is connected to the welding torch; the welding cleaning unit includes a flux adsorption unit and a welding fume removal unit provided on the gantry frame; a monitoring probe for monitoring the welding situation is also provided on the gantry frame.

[0026] As described above, the environmentally friendly welding device for consumable electrode rods of this invention has the following beneficial effects:

[0027] This utility model discloses an environmentally friendly welding device for consumable electrode rods. It enables automatic rotation of the consumable electrode during welding, alignment adjustment between the auxiliary electrode and the consumable electrode, and automatic welding through the cooperation of a frame-type welding section. Because the frame-type welding section is equipped with a welding cleaning section for removing flux and welding fumes, it can safely and effectively absorb and recover flux and welding fumes during welding, improving the operating environment.

[0028] The process of this utility model is smooth, the self-consumable electrode roller adopts a split structure, the equipment structure is simple, the operation is strong, the footprint is small, there is no deep equipment foundation, and the maintenance is convenient.

[0029] This utility model can realize automatic or semi-automatic adjustment and welding according to needs, making operation safer and simpler, improving the operating environment, reducing labor intensity, and can be promoted to other similar fields, such as the electrode preparation process of electroslag furnace production. It has strong practicality and broad market prospects for related production in special steel enterprises. Attached Figure Description

[0030] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0031] Figure 1 This is a schematic diagram of the initial state of the environmentally friendly welding device for the consumable electrode rod of this utility model.

[0032] Figure 2 This is a schematic diagram of the welding process of the environmentally friendly welding device for consumable electrode rods of this utility model.

[0033] Figure 3 for Figure 1 Schematic diagram at point AA.

[0034] Figure 4 For centering detection Figure 1 Diagram of section BB.

[0035] Figure 5 For initial or welding Figure 1 Diagram of section BB.

[0036] Figure 6 This is a schematic diagram of the mobile end roller of this utility model.

[0037] Figure 7 This is a schematic diagram of the auxiliary electrode delivery unit of this utility model.

[0038] Figure 8 for Figure 7 Schematic diagram of direction D.

[0039] Figure 9 This is a schematic diagram of the frame-type welding part of this utility model.

[0040] Figure 10 for Figure 1 Diagram at point CC.

[0041] Figure 11 for Figure 2 Schematic diagram of EE in the middle.

[0042] In the picture:

[0043] 1. Consumable electrode roller section;

[0044] 11. Fixed-end idler roller section; 111. Fixed-end idler roller; 112. Rotation drive unit; 113. Fixed-end idler roller frame; 114. Fixed-end idler roller seat; 115. Drive motor; 1151. Protective cover; 116. Transmission sprocket; 117. Driven sprocket; 118. First transmission chain; 119. Second transmission chain;

[0045] 12. Moving end idler section; 121. Moving end idler; 122. Moving idler frame; 123. Moving end idler seat; 124. Travel motor; 125. Drive chain;

[0046] 13. Self-consuming power limit block;

[0047] 2. Auxiliary electrode delivery unit;

[0048] 20. Auxiliary electric limit block; 21. Auxiliary electrode bracket; 211. Bracket support plate; 22. Conveyor body; 23. Lifting plate; 24. Lifting hydraulic cylinder; 25. Guide rod; 26. Translation hydraulic cylinder; 271. Slide rail; 272. Slide channel; 28. Angle adjustment hydraulic cylinder; 29. ​​Moving hydraulic cylinder;

[0049] 3. Frame-type welding section; 31. Gantry frame; 32. Welding torch; 33. Welding arm; 34. Flux adsorption section; 35. Welding fume removal section; 36. Monitoring probe;

[0050] 41. Centering signal receiving unit; 411. Support base; 412. Receiver mounting bracket; 413. Swing hydraulic cylinder;

[0051] 42. Laser signal transmitting unit; 421. Transmitter bracket;

[0052] 5. Pressure sensor;

[0053] 6. Consumable electrode rod;

[0054] 7. Auxiliary electrode. Detailed Implementation

[0055] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0056] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the present invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on this invention, and these should all be considered within the scope of this invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal connections between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] like Figures 1 to 11 As shown, this utility model provides an environmentally friendly welding device for consumable electrode rods, comprising:

[0059] The self-consumable electrode support roller 1, which is arranged in a split structure, includes a fixed end support roller 11 and a movable end support roller 12 that can move relative to the fixed end support roller 11. The fixed end support roller 11 includes a pair of fixed end support rollers 111 that can be adjusted to move laterally. The fixed end support rollers 111 can rotate around a central axis to drive the self-consumable electrode rod 6 supported thereon to rotate. The movable end support roller 12 includes a pair of movable end support rollers 121 that can be adjusted to move laterally. The fixed end support rollers 111 and the movable end support rollers 121 are arranged axially opposite each other to support the self-consumable electrode rod 6 in a straight line.

[0060] The auxiliary electrode transport unit 2 for transporting and supporting the auxiliary electrode includes an auxiliary electrode bracket 21 that can adjustably support the auxiliary electrode 7; the auxiliary electrode transport unit 2 can realize the transport, lifting, translation and angle adjustment of the auxiliary electrode 7;

[0061] The frame-type welding section 3 includes a gantry frame 31 that can be moved across the self-consumable electrode roller section 1 or the auxiliary electrode conveying section 2. The gantry frame 31 is equipped with a welding cleaning section and a welding torch 32 that can be raised and lowered.

[0062] The centering structure includes a centering signal receiving unit 41 disposed on one side of the fixed end roller 11 and a laser signal emitting unit 42 disposed on one side of the auxiliary electrode bracket 21. The centering signal receiving unit 41 receives the laser signal emitted by the laser signal emitting unit 42. The method of direct centering on the circular plane at the end provides more intuitive feedback on the vertical and horizontal deviations between the self-consuming electrode rod 6 and the auxiliary electrode 7.

[0063] The control unit is electrically connected to the self-consuming electrode roller unit 1, the auxiliary electrode conveying unit 2, the frame welding unit 3, and the centering structure unit.

[0064] A V-shaped support space is formed between the paired fixed-end roller 111 and movable-end roller 121. The fixed-end roller 111 and movable-end roller 121 can move laterally to adjust their horizontal installation position, thereby flexibly adjusting the size of the V-shaped support space to support consumable electrode rods 6 of different diameters. The fixed-end roller 111 and movable-end roller 121 must be installed at the same angle and height to ensure that the rollers are completely straight when supporting the consumable electrode rod 6, and that the ends are completely perpendicular to the ground. The movable-end roller 121 can move relative to the fixed-end roller 11 to meet the support requirements of consumable electrode rods 6 of different lengths. The fixed-end roller 111 can rotate around its central axis to drive the consumable electrode rod 6 it supports to rotate, and can be started and stopped according to the needs and feedback of the control unit.

[0065] The self-consumable electrode roller of this invention adopts a split structure, which can be applied to different spindle types (different diameter specifications). In particular, for large-sized self-consumable electrode rods, only the installation positions of the fixed end roller 111 and the moving end roller 121 need to be adjusted, and there is no need to manufacture a long roller track.

[0066] This invention achieves the adjustment and alignment of the auxiliary electrode through an alignment signal receiving unit 41 located on one side of the fixed end roller section 11 and a laser signal emitting unit 42 located on one side of the auxiliary electrode bracket 21, which is highly efficient and meets production requirements.

[0067] This utility model uses a frame-type welding section 3 to weld consumable electrode rods and auxiliary electrodes, and a welding cleaning section to automatically collect flux and welding fumes, effectively improving the working environment.

[0068] This invention relates to an environmentally friendly welding device for consumable electrode rods. The device has a simple structure, is easy to maintain, does not require a large foundation, and reduces the difficulty of foundation construction. This invention enables automatic centering and welding of the consumable electrode and the auxiliary electrode, and effectively improves the working environment of the welding area. It has strong economic efficiency and practicality.

[0069] This utility model discloses an environmentally friendly welding device for consumable electrode rods. It enables automatic rotation of the consumable electrode during welding, alignment adjustment between the auxiliary electrode and the consumable electrode, and automatic welding through the cooperation of a frame-type welding section. Because the frame-type welding section is equipped with a welding cleaning section for removing flux and welding fumes, it can safely and effectively absorb and recover flux and welding fumes during welding, improving the operating environment.

[0070] The process of this utility model is smooth, the self-consumable electrode roller adopts a split structure, the equipment structure is simple, the operation is strong, the footprint is small, there is no deep equipment foundation, and the maintenance is convenient.

[0071] This utility model can realize automatic or semi-automatic adjustment and welding according to needs, making operation safer and simpler, improving the operating environment, reducing labor intensity, and can be promoted to other similar fields, such as the electrode preparation process of electroslag furnace production. It has strong practicality and broad market prospects for related production in special steel enterprises.

[0072] Furthermore, the auxiliary electrode delivery unit 2 serves to deliver and adjust the auxiliary electrode 7.

[0073] like Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, the auxiliary electrode conveying unit 2 includes a conveyor body 22 that can move along the axial direction (axial direction of the fixed end roller) of the fixed end roller unit 11. A lifting plate 23 that can be raised and lowered is provided above the conveyor body 22. A bracket support plate 211 that can be adjusted laterally is provided on the lifting plate 23. An auxiliary electrode bracket 21 is hinged to the upper part of the bracket support plate 211. The angle between the auxiliary electrode bracket 21 and the horizontal direction is adjustable. The auxiliary electrode bracket 21 is a V-shaped bracket to meet the support needs of auxiliary electrodes 7 of various specifications.

[0074] Furthermore, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, a lifting hydraulic cylinder 24 for driving the auxiliary electrode bracket 21 to rise and fall is connected to the lower part of the lifting plate 23. A stroke encoder is installed inside the lifting hydraulic cylinder 24 and is electrically connected to the control unit. A vertical guide hole is provided on the conveyor body 22. A guide rod 25 extending downward is connected to the bottom end of the lifting plate 23. The guide rod 25 can slide up and down along the guide hole. In this embodiment, there is one lifting hydraulic cylinder 24, located at the center of the lifting plate 23. There are four guide rods 25, which are arranged around the lifting hydraulic cylinder 24.

[0075] The stroke of the lifting hydraulic cylinder 24 must be sufficient to lift the auxiliary electrode 7 from its largest to its smallest size. A stroke encoder is installed inside the lifting hydraulic cylinder 24 to continuously feed back and receive signals from the laser signal transmitter 42.

[0076] A translational hydraulic cylinder 26 for laterally adjusting the auxiliary electrode bracket 21 is connected between the lifting plate 23 and the bracket support plate 211; a slide rail 271 is arranged laterally on the lifting plate 23, and a slide groove 272 is arranged laterally at the bottom end of the bracket support plate 211, and the slide groove 272 is slidably fitted on the slide rail 271; the left and right translation of the auxiliary electrode bracket 21 is driven by the translational hydraulic cylinder 26, and the support between the auxiliary electrode bracket 21 (V-shaped bracket) and the lifting plate 23 is completed by the middle slide rail 271 and the slide groove 272, and the slide rail 271 plays a guiding role.

[0077] One end of the auxiliary electrode bracket 21 is hinged to the bracket support plate 211, and the other end of the auxiliary electrode bracket 21 is connected to the angle adjustment hydraulic cylinder 28. The bottom end of the angle adjustment hydraulic cylinder 28 is connected to the bracket support plate 211.

[0078] One end of the auxiliary electrode bracket 21 is provided with a hinge shaft, and the other end is hinged to an angle adjustment hydraulic cylinder 28. The angle adjustment hydraulic cylinder 28 is used to raise or lower the auxiliary electrode bracket 21 to an appropriate angle to ensure that the auxiliary electrode 7 can be completely close to the end face of the consumable electrode rod 6, that is, to ensure that the auxiliary electrode 7 and the consumable electrode rod 6 are tightly fitted, preventing gaps between the electrodes during welding, thereby ensuring the safety of operation during melting.

[0079] Furthermore, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, a transmitter bracket 421 is provided on the side of the auxiliary electrode bracket 21 away from the fixed end roller 11 (at the rear of the auxiliary electrode conveying part 2). The transmitter bracket 421 is provided with a mounting slot, in which the laser signal emitting part 42 is adjustablely mounted. The emitting end of the laser signal emitting part 42 moves up and down with the lifting plate 23 when the auxiliary electrode 7 is raised and lowered.

[0080] Furthermore, such as Figure 1 , Figure 7 As shown, an auxiliary electric limit block 20 is provided at one end of the auxiliary electrode bracket 21, and the auxiliary electrode 7 is placed no longer than the end of the auxiliary electric limit block 20.

[0081] A pressure sensor 5 is provided at the end of the auxiliary electric limit block 20, and the pressure sensor 5 is electrically connected to the control unit; when the auxiliary electrode 7 contacts the consumable electrode rod 6, the pressure sensor 5 transmits a signal to the control unit.

[0082] Furthermore, such as Figure 1 , Figure 2 , Figure 7 , Figure 8 As shown, a driving unit is connected to the conveyor body 22 to drive the conveyor body 22 to move. The driving unit includes an electro-hydraulic push rod or a moving hydraulic cylinder 29 connected to the bottom end of the conveyor body 22. The electro-hydraulic push rod or the moving hydraulic cylinder 29 is sunken below the ground.

[0083] The conveyor body 22 is driven by an electro-hydraulic actuator or a movable hydraulic cylinder 29. The conveyor body 22 drives the auxiliary electrode 7 to travel along the conveying track set on the ground, conveying the auxiliary electrode 7 to contact the end of the consumable electrode rod 6. The movable hydraulic cylinder 29 can be set in a pit with a steel cover plate on top to reduce the height of the equipment on the ground. When the auxiliary electrode 7 contacts the consumable electrode rod 6 under the drive of the conveyor body 22, the pressure sensor 5 transmits a signal to the control unit. The feedback signal stops the conveyor body 22, and the auxiliary electrode 7 is in place before welding.

[0084] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the fixed-end roller section 11 includes a fixed-end roller frame 113 fixedly connected to the ground (ground foundation). Fixed-end roller seats 114 are arranged in pairs along the horizontal direction and are movable on the fixed-end roller frame 113. Fixed-end rollers 111 are hinged to the fixed-end roller seats 114. The fixed-end roller seats 114 are bolted to the top of the fixed-end roller frame 113. The horizontal installation position (lateral position) of the fixed-end roller seats 114 and the fixed-end rollers 111 can be adjusted for workpieces of different sizes and specifications.

[0085] In this embodiment, there are two fixed-end rollers 111, which can be welded rollers.

[0086] A rotation drive unit is connected to the fixed end roller 111. Therefore, the fixed end roller 111 constitutes a drive roller, realizing the rotation of the consumable electrode rod 6 supported above it.

[0087] The rotation drive unit includes a drive motor 115, a transmission sprocket 116 is provided on one side of the fixed end roller frame 113, and a driven sprocket 117 is provided on one axial end of the fixed end roller 111. The drive motor 115 is connected to the transmission sprocket 116 through a first transmission chain 118, and the transmission sprocket 116 is connected to the driven sprocket 117 through a second transmission chain 119. The drive motor 115 drives the fixed end roller 111 to rotate in the same direction through the transmission sprocket 116 and the driven sprocket 117. A rotary encoder is provided on the drive motor 115, and the rotary encoder is electrically connected to the control unit.

[0088] To ensure the stability of the chain drive, a tensioning device is installed on one side of the first drive chain 118.

[0089] When installing the equipment, the installation location must be determined first, and the transmission sprocket 116 is installed on the ground foundation. The drive motor 115 with rotary encoder is installed on the ground next to the fixed end roller frame 113, and a protective cover 1151 is installed on top.

[0090] The rotation of the fixed-end idler roller 111 is driven by a sprocket driven by a drive motor 115, which in turn drives the transmission sprocket to rotate, thus rotating the fixed-end idler roller 111 and consequently the consumable electrode rod 6 at the top at a slow speed. This method is not limited by installation space, allows for the use of a larger drive geared motor, and provides greater driving force compared to single-roller drive. The height of the fixed-end idler roller frame 113 ensures that the consumable electrode rod 6 is within the operator's standing operating range.

[0091] A self-consuming limit block 13 is provided at the end of the fixed end idler 114 away from the moving end idler 12. During hoisting, it must be ensured that the position of the front end of the self-consuming electrode rod 6 (the end away from the moving end idler 12) does not exceed the self-consuming limit block 13.

[0092] Furthermore, such as Figure 1 , Figure 4 , Figure 5 As shown, a support base 411 (fixed by bolts) is provided on the fixed end roller frame 113. A receiver mounting frame 412 is hinged on the support base 411, and the centering signal receiving part 41 is provided on the receiver mounting frame 412. A swing hydraulic cylinder 413 is hinged on the fixed end roller frame 113. One end of the swing hydraulic cylinder 413 is hinged to the receiver mounting frame 412 to drive the receiver mounting frame 412 and the centering signal receiving part 41 to swing (the receiver mounting frame 412 rotates around the hinge point of the support base 411).

[0093] The laser signal transmitter 42 and the centering signal receiver 41 together constitute a laser measuring instrument. Both can be located on the side of the idler roller (fixed end idler roller 111, moving end idler roller 121), which will not cause welding interference as in the prior art where the measuring instrument is set at the top.

[0094] Furthermore, such as Figure 6 As shown, the movable end roller section 12 includes a movable roller frame 122, on which a pair of movable end roller seats 123 are arranged that can move laterally, and a movable end roller 121 is hinged to the movable end roller seat 123; a travel motor 124 is connected to the movable roller frame 122, and the travel motor 124 drives the movable end roller section 12 to move through a drive chain 125; the travel motor 124 is electrically connected to the control unit.

[0095] In this embodiment, there are two mobile end rollers 121, and the lateral spacing between them is adjustable to accommodate various specifications of consumable electrode rods 6.

[0096] In this embodiment, the movable roller frame 122 is in the form of a trolley, and the bottom of the movable roller frame 122 is provided with wheels for walking. These wheels are double-flanged wheels. A moving end track is provided on the ground, and the top surface of the track is at the same height as the ground. The movable roller frame 122 can move relative to the fixed end roller section 11 along the moving end track.

[0097] The walking motor 124 is located at the rear of the mobile roller frame 122 and uses chain drive to drive the mobile roller frame 122 to move on the track at the moving end.

[0098] Furthermore, such as Figure 1 , Figure 2 , Figure 9 , Figure 10 , Figure 11 As shown, a lifting welding arm 33 is provided on the gantry frame 31, and a welding torch 32 is connected to the bottom of the welding arm 33; the welding cleaning unit includes a flux adsorption unit 34 and a welding fume removal unit 35 provided on the gantry frame 31; a monitoring probe 36 for monitoring the welding situation is also provided on the gantry frame 31, which can directly observe the welding situation. If additional welding is required, it can be manually operated through the control unit.

[0099] A gantry travel system is provided at the bottom of the gantry frame 31, including wheels located at the bottom of the gantry frame 31. The gantry frame 31 is driven to travel by a travel drive cylinder that is sunk below the ground.

[0100] Because the frame-type welding section 3 is equipped with a flux adsorption section 34 and a welding fume removal section 35, it can safely and effectively achieve flux and welding fume adsorption and recovery during welding, effectively ensuring the cleanliness of the electrode after welding and improving the operating environment. The frame-type welding section 3 of this utility model meets environmental protection requirements while allowing operators to observe the welding process in real time.

[0101] Furthermore, the control unit includes a PLC control system. The status of the rotary drive unit 112, drive motor 115, travel motor 124, lifting hydraulic cylinder 24, translation hydraulic cylinder 26, angle adjustment hydraulic cylinder 28, movement hydraulic cylinder 29, monitoring probe 36, centering signal receiver 41, laser signal transmitter 42, and pressure sensor 5 are all controlled and regulated by the PLC control system. Through laser measurement, encoder, and sensor feedback signals, the auxiliary electrode 7 can be automatically raised, lowered, translated, finely adjusted, centered, and welded, achieving high efficiency and meeting production requirements. The control unit controls the transmission system through sensor feedback signals, resulting in fast response.

[0102] The usage process of this utility model's environmentally friendly welding device for consumable electrode rods is as follows:

[0103] like Figure 1As shown, in the initial working condition prepared by this utility model, the moving end roller section 12 is positioned on the moving end track away from the fixed end roller section 11. The frame-type welded section 3 is at the end of the auxiliary electrode conveying section 2, and does not affect the positioning of the hoisting.

[0104] The centering signal receiving unit 41 at the front end of the fixed-end idler roller 11 is located in the initial position, that is, the receiver mounting frame 412 swings to the outside of the fixed-end idler roller 111, without affecting the hoisting of the consumable electrode rod 6. The hoisting of the consumable electrode rod 6 and the auxiliary electrode 7 is completed by the cooperation of the overhead crane. According to the different specifications of the consumable electrode rod 6, the moving-end idler roller 121 adjusts the initial position to ensure that the support of the consumable electrode rod 6 is met. During hoisting, it must be ensured that the position of the front end of the consumable electrode rod 6 does not exceed the consumable limit block 13 on the idler roller frame. The centering signal receiving unit 41 can be initially calculated and set to the position on the receiver mounting frame 412 based on the spindle shape.

[0105] In the initial state, after the consumable electrode rod 6 is hoisted, the receiver mounting bracket 412, where the centering signal receiving unit 41 is located, rotates around the support base 411 under the action of the swing hydraulic cylinder 413. The swing hydraulic cylinder 413 is equipped with a stroke encoder, which can control the receiver mounting bracket 412 to run in a fixed position. At this time, the preparation work for the consumable electrode area is completed. After the consumable electrode rod 6 is placed, its center elevation is determined, and its height remains unchanged during the welding process.

[0106] The auxiliary electrode 7 is placed on the auxiliary electrode bracket 21 (V-shaped bracket) of the auxiliary electrode conveying unit 2, and must not exceed the auxiliary electrode limit block 20 during hoisting. At this time, the operator adjusts the laser signal emitting unit 42 (laser signal transmitter) located at the rear of the conveyor body 22, so that the height of the laser signal emitting unit 42 is the same as the center height of the auxiliary electrode 7. For the same type of consumable furnace production equipment, using the same specification (diameter, length) of auxiliary electrode 7, the installation of the laser signal emitting unit 42 can be adjusted according to the position of the center of the auxiliary electrode 7 to meet the production needs of different equipment. When installing the auxiliary electrode conveying unit 2, the center of the fixed end roller 11 is considered as the reference. Theoretically, the auxiliary electrode 7 only needs to be raised and lowered to meet the alignment with the consumable electrode rod 6. However, considering the installation and hoisting errors, workpiece machining accuracy, etc., there may be left and right position deviations during actual operation.

[0107] After all preparations are complete, the conveyor body 22, driven by the moving hydraulic cylinder 29, moves closer to the consumable electrode rod 6. Based on the sensor settings of the hydraulic cylinder, it stops approximately 200mm from the end of the consumable electrode rod 6. At this time, the laser signal transmitter 42 activates, and the auxiliary electrode bracket 21 slowly rises under the drive of the bottom lifting hydraulic cylinder 24, thereby slowly raising the auxiliary electrode 7.

[0108] After the laser is emitted from the laser signal emitting unit 42, the beam divergence angle is extremely small and it propagates in a basically straight line. When it reaches the centering signal receiving unit 41, there is no energy loss. Furthermore, since the wavelength of the light emitted by the laser is single, it is easily distinguished by the centering signal receiving unit 41 and is not affected by external light interference.

[0109] When the laser signal emitted by the laser signal emitting unit 42 of the auxiliary electrode conveying unit 2 is received by the centering signal receiving unit 41 on the fixed end roller frame 113, the information is fed back to the PLC control system and transmitted to the lifting hydraulic cylinder 24. The lifting hydraulic cylinder 24 then stops, and the centering of the auxiliary electrode 7 and the consumable electrode rod 6 is completed. If the laser signal emitting unit 42 of the auxiliary electrode conveying unit 2 does not receive any signals within its full stroke, it indicates that there is also a horizontal offset in addition to the vertical direction. While the lifting hydraulic cylinder 24 is running, the translation hydraulic cylinder 26 adjusts its position until a signal is received. The lifting hydraulic cylinder 24 and the translation hydraulic cylinder 26 then stop and lock, completing the centering of the auxiliary electrode 7. The lifting of the angle adjustment hydraulic cylinder 28 and the pressure sensor 5 at the end of the auxiliary electric limit block 20 work together to ensure that the consumable electrode rod 6 and the auxiliary electrode 7 are in close contact. This function can be applied to electrodes with tapers or angles, such as in some electroslag furnace production.

[0110] After the auxiliary electrode 7 is aligned, the alignment signal receiving unit 41 on the fixed end roller frame 113 returns to the initial position under the drive of the swing hydraulic cylinder 413. At this time, the auxiliary electrode conveying unit 2, driven by the moving hydraulic cylinder 29, drives the auxiliary electrode 7 to continue moving along the track direction until the auxiliary electrode 7 contacts the consumable electrode rod 6. At this time, the pressure sensor 5 at the electrical limit position feeds back a signal, and the auxiliary electrode conveying unit 2 stops operating under the movement of the moving hydraulic cylinder 29.

[0111] After the auxiliary electrode 7 is in place, the frame-type welding section 3 moves to the limit position under the drive of the gantry travel system. The mechanical limit can be set according to the size of the self-consuming power limit block 13 and the gantry frame 31, and the welding torch 32 descends to the welding position. At this time, the flux adsorption section 34 and the welding fume removal section 35 start to work.

[0112] like Figure 2 As shown, after each process step is in place, the fixed-end roller 111 rotates under the drive of the drive motor 115, thereby driving the consumable electrode rod 6 above it to rotate. In the initial stage of welding, according to the welding process requirements, the rotary encoder of the drive motor 115 is set to rotate at a 15° angle, allowing the consumable electrode rod 6 to stop at 15° angles, thus completing 5 spot welds. At this time, the auxiliary electrode 7 is already connected to the consumable electrode rod 6 at its upper end. The drive motor 115 then drives the auxiliary electrode 7 to rotate slowly, and the welding torch 32 of the frame-type welding section 3 completes 360° circumferential welding. During welding, the pressure sensor 5 at the end of the auxiliary electrode conveying section 2 continuously provides feedback signals to ensure that the two electrodes do not detach, and that no gaps form between the auxiliary electrode 7 and the consumable electrode rod 6 during welding.

[0113] Operators can observe the welding quality through monitoring probe 36. If additional welding is needed, it can be manually operated through the control unit.

[0114] After welding is completed, the frame welding section 3 and the auxiliary electrode conveying section 2 return to their initial positions, and the consumable electrode rod 6 and auxiliary electrode 7 that have been welded can be transported away by a crane.

[0115] As described above, the environmentally friendly welding device for consumable electrode rods of this invention has the following beneficial effects:

[0116] This utility model discloses an environmentally friendly welding device for consumable electrode rods. It enables automatic rotation of the consumable electrode during welding, alignment adjustment between the auxiliary electrode and the consumable electrode, and automatic welding through the cooperation of a frame-type welding section. Because the frame-type welding section is equipped with a welding cleaning section for removing flux and welding fumes, it can safely and effectively absorb and recover flux and welding fumes during welding, improving the operating environment.

[0117] The process of this utility model is smooth, the self-consumable electrode roller adopts a split structure, the equipment structure is simple, the operation is strong, the footprint is small, there is no deep equipment foundation, and the maintenance is convenient.

[0118] This utility model can realize automatic or semi-automatic adjustment and welding according to needs, making operation safer and simpler, improving the operating environment, reducing labor intensity, and can be promoted to other similar fields, such as the electrode preparation process of electroslag furnace production. It has strong practicality and broad market prospects for related production in special steel enterprises.

[0119] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. An environmentally friendly welding device for consumable electrode rods, characterized in that, include: The consumable electrode support roller section is configured in a split structure, including a fixed end support roller section and a movable end support roller section that can move relative to the fixed end support roller section. The fixed end support roller section includes a pair of fixed end support rollers that can be adjusted laterally, and the fixed end support rollers can rotate about a central axis to drive the consumable electrode rod they support to rotate. The movable end support roller section includes a pair of movable end support rollers that can be adjusted laterally. The fixed end support rollers and the movable end support rollers are arranged axially opposite each other to support the consumable electrode rod in a straight line. An auxiliary electrode delivery section for conveying and supporting auxiliary electrodes includes an auxiliary electrode bracket that can adjustably support the auxiliary electrodes; The frame-type welding unit includes a gantry frame that can be moved across the consumable electrode roller unit or the auxiliary electrode conveying unit. The gantry frame is equipped with a welding cleaning unit and a welding torch that can be raised and lowered. The centering structure includes a centering signal receiving unit disposed on one side of the fixed end roller and a laser signal emitting unit disposed on one side of the auxiliary electrode bracket. The centering signal receiving unit receives the laser signal emitted by the laser signal emitting unit to center and adjust the auxiliary electrode. The control unit is electrically connected to the consumable electrode roller unit, the auxiliary electrode conveying unit, the frame welding unit, and the centering structure unit.

2. The environmentally friendly welding device for consumable electrode rods as described in claim 1, characterized in that, The auxiliary electrode conveying unit includes a conveying vehicle body that can move axially along the fixed end roller part. A lifting plate that can be raised and lowered is provided above the conveying vehicle body. A bracket support plate that can be adjusted laterally is provided on the lifting plate. The auxiliary electrode bracket that is hinged above the bracket support plate has an adjustable angle with the horizontal direction.

3. The environmentally friendly welding device for consumable electrode rods as described in claim 2, characterized in that, A lifting hydraulic cylinder for driving the auxiliary electrode bracket to rise and fall is connected below the lifting plate. A stroke encoder is installed inside the lifting hydraulic cylinder and is electrically connected to the control unit. A vertical guide hole is provided on the conveyor body. A guide rod extending downward is connected to the bottom end of the lifting plate and can slide up and down along the guide hole. A translational hydraulic cylinder for laterally adjusting the auxiliary electrode bracket is connected between the lifting plate and the bracket support plate; a slide rail is arranged laterally on the lifting plate, and a slide groove is arranged laterally at the bottom end of the bracket support plate, the slide groove being slidably fitted onto the slide rail. One end of the auxiliary electrode bracket is hinged to the bracket support plate, and the other end of the auxiliary electrode bracket is connected to an angle adjustment hydraulic cylinder, the bottom end of which is connected to the bracket support plate.

4. The environmentally friendly welding device for consumable electrode rods as described in claim 2, characterized in that, The lifting plate is provided with a transmitter bracket on the side of the auxiliary electrode bracket away from the fixed end roller. The transmitter bracket is provided with a mounting slot, in which the laser signal emitting part can be adjustedly installed.

5. The environmentally friendly welding device for consumable electrode rods as described in claim 2, characterized in that, An auxiliary electrical limit block is provided at one end of the auxiliary electrode bracket, and a pressure sensor is provided at the end of the auxiliary electrical limit block. The pressure sensor is electrically connected to the control unit. When the auxiliary electrode contacts the consumable electrode rod, the pressure sensor transmits a signal to the control unit.

6. The environmentally friendly welding device for consumable electrode rods as described in claim 2, characterized in that, The conveyor body is connected to a driving unit to drive the conveyor body to move. The driving unit includes an electro-hydraulic push rod or a moving hydraulic cylinder connected to the bottom end of the conveyor body. The electro-hydraulic push rod or the moving hydraulic cylinder is sunk below the ground.

7. The environmentally friendly welding device for consumable electrode rods as described in claim 1, characterized in that, The fixed-end roller section includes a fixed-end roller frame fixedly connected to the ground. A pair of movably mounted fixed-end roller seats are arranged laterally on the fixed-end roller frame, and the fixed-end rollers are hinged to the fixed-end roller seats. A rotation drive unit is connected to the fixed-end rollers. The rotation drive unit includes a drive motor. A transmission sprocket is provided on one side of the fixed-end roller frame, and a driven sprocket is provided at one axial end of the fixed-end roller. The drive motor is connected to the transmission sprocket via a first transmission chain, and the transmission sprocket is connected to the driven sprocket via a second transmission chain. The drive motor drives the fixed-end rollers to rotate in the same direction via the transmission sprocket and the driven sprocket. A rotary encoder is provided on the drive motor, and the rotary encoder is electrically connected to the control unit.

8. The environmentally friendly welding device for consumable electrode rods as described in claim 7, characterized in that, A support base is provided on the fixed end roller frame, and a receiver mounting frame is hinged on the support base. The centering signal receiving unit is disposed on the receiver mounting frame. A swing hydraulic cylinder is hinged on the fixed end roller frame, and one end of the swing hydraulic cylinder is hinged to the receiver mounting frame to drive the receiver mounting frame and the centering signal receiving unit to swing.

9. The environmentally friendly welding device for consumable electrode rods as described in claim 2, characterized in that, The movable end roller section includes a movable roller frame, on which a pair of movable end roller seats are arranged that can move laterally, and the movable end roller is hinged to the movable end roller seat; a travel motor is connected to the movable roller frame, and the travel motor drives the movable end roller section to move through a drive chain; the travel motor is electrically connected to the control unit.

10. The environmentally friendly welding device for consumable electrode rods as described in claim 2, characterized in that, The gantry frame is equipped with a lifting welding arm, which is connected to the welding torch; the welding cleaning unit includes a flux adsorption unit and a welding fume removal unit installed on the gantry frame; the gantry frame is also equipped with a monitoring probe for monitoring the welding process.

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