Steel structure positioning welding equipment

Abstract

The present invention discloses a steel structure positioning welding device, which relates to the technical field of steel structure welding, and comprises a welding mechanism, including a welding machine body, on which a welding gun is installed; a wire feeding mechanism, which is installed on the welding machine body and the welding gun, and comprises a round shell fixed to the upper end of the welding gun, the round shell being connected to a hose, a driving member being installed in the round shell, and a guide cover being fixed to the upper end of the welding gun; and an anti-clogging shaping mechanism, which is installed on the welding gun and the wire feeding mechanism, and comprises a wire outlet head that rotates inside the welding gun. The present invention, through the cooperation of the anti-clogging shaping mechanism with the wire feeding mechanism, can prevent welding slag from adhering to the position where the welding wire is output from the welding gun during welding, and can clamp and shape the welding wire, thereby reducing the occurrence of wire blockage and improving the quality of welding. The protective component can timely clean and shield the lower end of the welding gun, thereby reducing the increase in contact resistance during use and reducing the impact on the welding effect.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure welding, in particular to a steel structure positioning welding device. Background Art

[0002] Steel structure welding refers to a key manufacturing process that uses high-temperature melting or pressure to permanently connect steel components, either partially or entirely, into structural systems that meet design requirements. Essentially, it involves the process of achieving metallurgical bonding between the parent material and the welding material through energy input, thereby achieving structural strength, rigidity, and stability. Steel structure tack welding equipment refers to specialized equipment used for component assembly, fixation, and temporary tack welding in steel structure manufacturing.

[0003] In actual applications, steel structure positioning welding equipment has the following problems: during the welding process, welding slag easily adheres to the position where the welding wire comes out of the welding gun, causing wire blockage, resulting in uncontrolled subsequent weld formation, affecting the quality of welding, and after the welding gun is used, welding slag easily sprays and adheres to it, and cannot be cleaned in time, resulting in increased contact resistance for the next use, affecting the welding effect. Summary of the Invention

[0004] The problem to be solved by the present invention is how to solve the problem that welding slag easily adheres to the position where the welding wire comes out of the welding gun during welding, causing wire blockage, and the welding slag easily sprays and adheres to the welding gun after use, and cannot be cleaned in time, resulting in increased contact resistance for the next use, affecting the welding effect.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a steel structure positioning welding device, comprising a welding machine body, a welding gun arranged on the welding machine body, and also comprising a wire feeding mechanism, a wire outlet head, a vertical plate, and a transmission member, wherein the wire feeding mechanism is arranged on the welding gun and the wire feeding channel of the wire feeding mechanism is communicated with the channel inside the welding gun, the wire feeding mechanism comprises a driving wheel and a passive wheel, the driving wheel is fixedly connected to the rotating output shaft of the motor, the welding wire passes through the gap between the driving wheel and the passive wheel, the vertical plate reciprocates along the axial direction of the welding gun under the drive of the driving wheel, the wire outlet head is connected to the vertical plate through a transmission member, the wire outlet head is circumferentially arranged along the channel inside the welding gun and is rotatably connected to the inner cavity wall of the welding gun, the wire outlet head is provided with a number of radially arranged grooves at different axial positions, the channels in the groove body welding gun are communicated, the ball moves in the groove body and when it moves to the opening at the end of the groove body, the ball part enters the channel inside the welding gun.

[0006] Furthermore, the wire feeding mechanism also includes a fixed plate, a slider, a first spring, a cross bar, and a handle, wherein the fixed plate is fixed in the inner cavity of the welding gun, the motor is fixed on the fixed plate, the slider is slidably connected to the fixed plate, the passive wheel is rotatably connected to the slider, the two ends of the first spring are respectively arranged on the slider and the fixed plate, the cross bar is fixed on the passive wheel, and the handle is arranged at the end of the cross bar.

[0007] Furthermore, the vertical plate is connected to the driving wheel through a linkage, and the linkage includes a rotating column, a first empty plate, a second empty plate, a turntable, a first short column, and a second short column, wherein the turntable is fixedly connected to the driving wheel, the first short column is fixed to the turntable and is eccentrically arranged, the first empty plate is provided with a long strip through hole and the long strip through hole is slidably connected to the first short column, the two ends of the rotating column are respectively fixed to the ends of the first empty plate and the second empty plate, the second empty plate is provided with a long strip through hole, the second short column is slidably connected to the long strip through hole of the second empty plate, and the upper end of the vertical plate is fixedly connected to the second short column.

[0008] Furthermore, the transmission part includes a circular gear, a rotating rod, a bevel gear, and a bevel gear ring, wherein the circular gear is engaged with the gear plate arranged at the lower part of the vertical plate, the rotating rod is rotatably connected to the inner wall of the welding gun and one end is fixedly connected to the circular gear, the bevel gear is arranged at the other end of the rotating rod, and the bevel gear ring is arranged in a circle along the circumference of the wire outlet head and is engaged with the bevel gear.

[0009] Furthermore, the invention further comprises a U-shaped rod, a round block, a movable block, a second spring, a stopper bolt, a guide frame, a first ring plate, a second ring plate, a movable plate, a guide plate, and a guide post, wherein a movable block is provided in each trough, the movable block being slidably connected to the trough, the ball bearing being rotatably connected to the movable block, the round block being connected to the movable block via the second spring, and the ends of the U-shaped rod being fixedly connected to the round blocks in different troughs. The stopper bolt is fixed to the U-shaped rod, the guide frame is slidably connected to the stopper bolt, the first ring plate is provided along the circumference of the wire outlet head and fixed to the guide frame, the second ring plate is rotatably connected to the first ring plate, the lower end of the movable plate is fixed to the second ring plate, the guide post is fixed to the top of the movable plate, the guide plate is fixed to the slider and provided with a guide hole, and the guide post is slidably connected to the guide hole.

[0010] Furthermore, the guide frame is provided with a guide rail inclined downward, and the limit bolt is slidably provided on the guide rail of the guide frame.

[0011] Furthermore, the guide hole is divided into three parts, the first part and the third part are parallel linear guide rails, and the second part connects the ends of the first part and the third part.

[0012] Furthermore, it also includes a protection component, which includes a telescopic part installed on the wire outlet head, a scraper ring is fixed to the lower end of the telescopic part, and a rubber ring is installed on the telescopic part.

[0013] Furthermore, the telescopic part includes an annular groove opened in the wire outlet head, an airbag is installed in the annular groove, a hollow ring is slidably connected in the annular groove and is in contact with the airbag, a movable rod is slidably connected to the wire outlet head and its two ends are respectively fixedly connected to the bottom of the hollow ring and the top of the scraper ring, a slot is opened in the wire outlet head, and a rubber ring is slidably connected therein, and a connecting block is fixedly connected between the movable rod and the rubber ring.

[0014] Furthermore, the wire feeding mechanism also includes a round shell and a guide cover fixed to the upper end of the welding gun, and a hose is connected to the round shell.

[0015] The beneficial effects of the present invention are as follows: through the cooperation of the anti-clogging shaping mechanism and the wire feeding mechanism, the welding slag is not easily attached to the position where the welding wire comes out of the welding gun during the welding process, and the welding wire can be clamped and shaped, thereby reducing the occurrence of wire blockage and improving the quality of welding. The protective component can timely clean and shield the lower end of the welding gun, reduce the increase in contact resistance during use, and reduce the impact on the welding effect.

[0016] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a partial three-dimensional cross-sectional structural diagram of the steel structure positioning welding equipment.

[0018] Figure 2 This is a three-dimensional cross-sectional view of the circular shell of the steel structure positioning welding equipment.

[0019] Figure 3 Positioning welding equipment for steel structures Figure 2 A magnified structural diagram.

[0020] Figure 4 Separate 3D structural diagram of the slider and fixing plate of the steel structure positioning welding equipment.

[0021] Figure 5 Positioning welding equipment for steel structures Figure 4 A magnified structural diagram of B.

[0022] Figure 6 Partial cutaway view of the welding torch of a steel structure positioning welding machine Figure 1 .

[0023] Figure 7 Partial cutaway view of the welding torch of a steel structure positioning welding machine Figure 2 .

[0024] Figure 8 Positioning welding equipment for steel structures Figure 7 Enlarged structure diagram of C in the middle.

[0025] Figure 9 Positioning welding equipment for steel structures Figure 7 Enlarged structural diagram of D in the middle.

[0026] Figure 10 Positioning welding equipment for steel structures Figure 7 Enlarged structure diagram of E in the middle.

[0027] Figure 11This is a three-dimensional structural diagram of the wire outlet head of the steel structure positioning welding equipment.

[0028] Figure 12 Positioning welding equipment for steel structures Figure 11 Enlarged structure diagram of F in the middle.

[0029] Figure 13 Positioning welding equipment for steel structures Figure 11 Enlarged structural diagram of G in the middle.

[0030] Figure 14 Separated three-dimensional structural diagram of the airbag and hollow ring for steel structure positioning welding equipment.

[0031] In the figure: welding mechanism 1, welding machine body 11, welding gun 12, wire feeding mechanism 2, round shell 21, hose 22, driving member 23, guide cover 24, anti-clogging shaping mechanism 3, wire head 31, linkage member 32, vertical plate 33, transmission member 34, protection assembly 4, telescopic member 41, scraper ring 42, rubber ring 43, fixed plate 23-1, driving wheel 23-2, motor 23-3, slider 23-4, rubber sleeve 23-5, first spring 23-6, cross bar 23-7, handle 23-8, driven wheel 23-9, rotating column 32-1, first empty plate 32-2, second empty plate 32-3, turntable 32-4, first short column 32-5, second short column 32-6, short block 34-1, rotating rod 34-2, bevel gear 34-3, bevel gear ring 34-4, tooth plate 34-5, circular gear 34-6, clamping shaping part 35-1, connecting part 35-2, actuator 35-3, groove body 35-11, U-shaped rod 35-12, round block 35-13, movable block 35-14, second spring 35-15, ball 35-16, limit groove 35-17, limit block 35-18, limit bolt 35-21, guide frame 35-22, first ring plate 35-23, second ring plate 35-24, movable plate 35-31, guide plate 35-32, guide hole 35-33, guide column 35-34, ring groove 41-1, airbag 41-2, hollow ring 41-3, movable rod 41-4, slot 41-5, connecting block 41-6. DETAILED DESCRIPTION

[0032] Reference Figures 1-14 The present embodiment provides a steel structure positioning welding device, which includes a welding mechanism 1, a wire feeding mechanism 2, an anti-clogging shaping mechanism 3 and a protective component 4. Through the cooperation of the anti-clogging shaping mechanism 3 and the wire feeding mechanism 2, the welding slag is not easily attached to the position where the welding wire is output from the welding gun 12 during the welding process, thereby reducing the occurrence of wire blockage. The protective component 4 can clean and shield the lower end of the welding gun 12 in time, thereby reducing the increase in contact resistance during use.

[0033] The welding mechanism 1 includes a welding machine body 11, on which a welding gun 12 is mounted. The welding machine body 11 is mounted on a steel structure conveyor, and the welding gun 12 is positioned above the steel structure on the steel structure conveyor. The welding gun 12 can move vertically and horizontally to weld steel structures at different heights and locations. The welding gun 12 consists of two parts, with a conductive wire connecting the conductive part of the welding gun 12.

[0034] Reference Figures 1-6 The wire feeding mechanism 2 is mounted on the welding machine body 11 and the welding gun 12 and includes a circular housing 21 fixed to the upper end of the welding gun 12. The circular housing 21 is connected to a hose 22, and a driving member 23 is installed in the circular housing 21. A guide cover 24 is fixed to the upper end of the welding gun 12. The wire feeding mechanism 2 also includes a wire lowering assembly. Under the operation of the driving member 23, the welding wire can be continuously fed into the welding gun 12. The welding wire passes through the hose 22 and the driving member 23 and is inserted into the welding gun 12. The guide cover 24 guides the welding wire inserted into the circular housing 21 and the driving member 23, allowing it to be more smoothly inserted into the welding gun 12 and the wire outlet head 31.

[0035] Reference Figure 3-Figure 9 、 Figure 11-13 The anti-clogging shaping mechanism 3 is installed on the welding gun 12 and the wire feeding mechanism 2, and includes a wire outlet head 31 that rotates in the welding gun 12. The wire outlet head 31 is made of non-conductive, high-strength, and high-temperature resistant material. Through the rotation of the wire outlet head 31, it can cause relative movement with the welding wire and the lower end of the welding gun 12, so that the welding slag and the welding liquid are not easy to solidify at the contact point between the wire outlet head 31, the welding wire, and the welding gun 12, thereby reducing the blockage during wire feeding. Even if some small particles are solidified there, the wire outlet head 31 will rotate when it is run again, and the force generated will loosen and break the particles at the contact point, thereby reducing the blockage of wire feeding.

[0036] A linkage member 32 is installed on the driving member 23. Through the setting of the linkage member 32, the driving member 23 can be driven to operate during the wire feeding process, so that the vertical plate 33 connected to it can move up and down. The welding gun 12 is slidably connected with the vertical plate 33. The welding gun 12 and the wire outlet head 31 are equipped with a transmission member 34. Through the setting of the transmission member 34, the vertical plate 33 can be driven to operate under the up and down movement of the vertical plate 33, so that the wire outlet head 31 can rotate back and forth, so as to reduce the solidification connection between the wire outlet head 31 and the welding wire and the welding gun 12 under the action of welding slag.

[0037] The linkage member 32 and the transmission member 34 are arranged on the vertical plate 33, and the wire outlet head 31 and the driving member 23 are equipped with a clamping and shaping component, and are arranged on the welding gun 12. The clamping and shaping component can clamp the welding wire passing through the wire outlet head 31, and under the action of the rotation of the wire outlet head 31, the clamping and shaping member 35-1 thereon can shape the surface of the welding wire passing through the wire outlet head 31, thereby reducing the situation where the welding wire is flattened due to excessive wire feeding pressure and the impact on welding quality.

[0038] And through the clamping function, when the driving member 23 completes the feeding of the last section of the welding wire and disengages, a small portion of the remaining welding wire is in the welding gun 12. When welding is not needed and the driving member 23 does not feed the wire, and the welding gun 12 and the steel structure are energized, the welding wire can be clamped so that it does not fall under the action of gravity, thereby avoiding the welding wire falling when welding is not needed and causing burn-through holes or weld nodules to accumulate during continuous welding under the condition of power, thereby improving the safety and quality of the use of welding equipment.

[0039] Reference Figure 7 、 Figure 11 、 Figure 14 The protective component 4 is installed on the wire outlet head 31, including a telescopic part 41 installed on the wire outlet head 31, a scraper ring 42 is fixed to the lower end of the telescopic part 41, a rubber ring 43 is installed on the telescopic part 41, and is arranged on the wire outlet head 31. The rubber ring 43 is an elastic memory rubber and is trumpet-shaped. When the welding gun 12 is not in use, it contacts the lower end of the welding gun 12 to play a dust-proof role.

[0040] During welding, as the welding gun 12 moves downward, the scraper ring 42 first contacts the steel structure. As the welding gun 12 moves downward, the scraper ring 42 acts on the telescopic part 41 to retract it, driving the rubber ring 43 to move into the wire outlet head 31. The scraper ring 42 gradually moves into the wire outlet head 31, so that the bottom of the welding gun 12 is completely exposed and in contact with the steel structure for power to be supplied, and welding is performed with the cooperation of the welding wire.

[0041] After welding is completed, the welding gun 12 moves up, and the scraper ring 42 moves down and resets, which can clean the end of the welding wire and reduce the situation where the welding slag solidifies between the wire outlet head 31 and the welding wire. In addition, the reset and removal of the rubber ring 43 can scrape and clean the bottom of the welding gun 12, reduce the situation where the welding slag adheres to the lower end of the welding gun 12, and ensure that the contact can be normally energized during the next welding. The scraper ring 42 is made of silicon nitride ceramic material.

[0042] Reference Figure 2-Figure 5The driving member 23 includes a fixed plate 23-1 fixedly connected to the circular shell 21. Two fixed plates 23-1 are fixedly connected in one circular shell 21. A driving wheel 23-2 is rotatably connected to the fixed plate 23-1. Both ends of the driving wheel 23-2 are rotatably connected to the two fixed plates 23-1 through bearings. A motor 23-3 is fixedly connected to the fixed plate 23-1, and its output shaft is fixedly connected to one end of the driving wheel 23-2. A slider 23-4 is slidably connected to the fixed plate 23-1. There are two sliders 23-4, which are slidably connected to the two fixed plates 23-1 respectively.

[0043] A passive wheel 23-9 is rotatably connected to the slider 23-4, and both ends of the passive wheel 23-9 are rotatably connected to the two sliders 23-4 through bearings. A first spring 23-6 is fixedly connected to the slider 23-4, and one end of the first spring 23-6 is fixedly connected to the surface of the fixed plate 23-1. Through the setting of the first spring 23-6, the slider 23-4 is acted upon by its elastic force, so that the passive wheel 23-9 is in close contact with the welding wire passing between it and the driving wheel 23-2, thereby acting on the welding wire.

[0044] When the drive motor 23-3 is running, the active wheel 23-2 can rotate, thereby feeding the welding wire, and at the same time the passive wheel 23-9 rotates. The operation and stop of the motor 23-3 are controlled by the controller and system on the welding machine body 11, which can realize normal wire feeding operation during welding.

[0045] The driving wheel 23-2 and the driven wheel 23-9 are both covered with rubber sleeves 23-5. The rubber sleeves 23-5 can increase the friction between the driving wheel 23-2, the driven wheel 23-9 and the welding wire, so that the welding wire required for welding can be fed more stably when the driving wheel 23-2 rotates, and it also plays a role in partially protecting the welding wire. One end of the driven wheel 23-9 is fixedly connected to the cross bar 23-7, and one end of the cross bar 23-7 is fixedly connected to the handle 23-8.

[0046] The handle 23-8 is welded to the passive wheel 23-9 through the cross bar 23-7. When the handle 23-8 is held and moved, the cross bar 23-7, the slider 23-4 and the passive wheel 23-9 are driven to move. At this time, the first spring 23-6 is compressed to increase the distance between the passive wheel 23-9 and the driving wheel 23-2, making it convenient to pass the welding wire inserted into the round shell 21 through the hose 22 and between the driving wheel 23-2 and the passive wheel 23-9, and then insert it into the welding gun 12 through the guide cover 24. When the handle 23-8 is loosened, the passive wheel 23-9 moves back under the action of the first spring 23-6, so that the welding wire is tightly located between the driving wheel 23-2 and the passive wheel 23-9.

[0047] Reference Figure 3-Figure 6The linkage member 32 includes a rotating column 32-1 rotatably connected to the fixed plate 23-1, and the rotating column 32-1 is rotatably connected to one of the fixed plates 23-1 through a bearing. The two ends of the rotating column 32-1 are respectively fixedly connected to the first empty plate 32-2 and the second empty plate 32-3. One end of the driving wheel 23-2 is fixedly connected to the turntable 32-4. The turntable 32-4 is fixedly connected to the first short column 32-5, and it is slidably connected to the first empty plate 32-2. The upper end of the vertical plate 33 is fixedly connected to the second short column 32-6, and it is slidably connected to the second empty plate 32-3.

[0048] During the wire feeding process, the rotation of the driving wheel 23-2 can drive the turntable 32-4 to rotate, and then drive the first short column 32-5 to rotate and move in the first empty plate 32-2, so that the first empty plate 32-2 rotates and swings back and forth around the rotating column 32-1, and then driven by the rotating column 32-1, the second empty plate 32-3 rotates and swings back and forth, so that the second short column 32-6 moves in the second empty plate 32-3, driving the vertical plate 33 to move up and down, and then can drive the transmission member 34 to operate and make the wire outlet head 31 rotate back and forth.

[0049] Reference Figure 8 、 Figure 9 、 Figure 11 、 Figure 12 The transmission member 34 includes a short block 34-1 fixedly connected to the welding gun 12, and a rotating rod 34-2 is rotatably connected to the short block 34-1. The rotating rod 34-2 is fixedly connected to the short block 34-1 through a bearing, and one end of the rotating rod 34-2 is fixedly connected to a bevel gear 34-3. A bevel gear ring 34-4 is provided on the surface of the wire outlet head 31, and it meshes with the bevel gear 34-3. A tooth plate 34-5 is fixedly connected to the inside of the lower end of the vertical plate 33, and a circular gear 34-6 is fixedly connected to the other end of the rotating rod 34-2, and it meshes with the tooth plate 34-5.

[0050] Through the arrangement of the tooth plate 34-5 and the circular gear 34-6, when the vertical plate 33 moves up and down and drives the tooth plate 34-5 to move up and down, the circular tooth plate 34-5 can rotate back and forth. Through the arrangement of the bevel gear 34-3 and the bevel gear ring 34-4, the rotation of the rotating rod 34-2 can make the bevel gear 34-3 rotate back and forth, thereby driving the bevel gear ring 34-4 and the wire outlet head 31 to rotate back and forth, making it difficult for welding slag and welding liquid to solidify at the contact point between the wire outlet head 31 and the welding wire and the welding gun 12, thereby reducing blockage during wire feeding.

[0051] Reference Figure 4 、 Figure 6-Figure 9 、 Figure 11-13The clamping and shaping assembly includes a clamping and shaping part 35-1 installed on the wire outlet head 31. The clamping and shaping part 35-1 can clamp the welding wire passing through the wire outlet head 31 and rotate with the rotation of the wire outlet head 31, thereby squeezing and shaping the circumference of the surface of the welding wire, partially restoring the flattened part of the welding wire, and improving the quality of subsequent welding.

[0052] A connecting piece 35-2 is installed on the clamping and shaping piece 35-1, and an actuator 35-3 is installed on the welding gun 12, and is arranged on the connecting piece 35-2 and the slider 23-4. The connecting piece 35-2 is driven by the actuator 35-3 to adjust the positions of multiple clamping and shaping pieces 35-1, so that when the welding wire passes through the wire outlet head 31, the clamping and shaping piece 35-1 is moved toward the outer direction of the wire outlet head 31 to avoid affecting the smooth passage of the welding wire through the wire outlet head 31. After the passage is completed, the clamping and shaping piece 35-1 is moved toward the welding wire so that the ball 35-16 on the clamping and shaping piece 35-1 contacts the surface of the welding wire.

[0053] The clamping shaping member 35-1 includes a groove body 35-11 opened in the wire head 31, a U-shaped rod 35-12 is slidably connected to the wire head 31, both ends of the U-shaped rod 35-12 extend into the groove body 35-11 and are fixedly connected to the round block 35-13, the U-shaped rod 35-12 passes through the wire head 31 and is slidably connected thereto, the round block 35-13 is slidably connected to the groove body 35-11, and the groove body 35-11 is slidably connected to the movable block 35-14, the round block 35-13 A second spring 35-15 is fixedly connected between 5-13 and the movable block 35-14. Through the setting of the second spring 35-15, when it is in a non-deformed state, pulling the U-shaped rod 35-12 can move the round block 35-13, and then under its action, the movable block 35-14 can be pulled to move, so that the ball 35-16 continues to move into the groove body 35-11, and will not hinder the welding wire from passing through the wire outlet head 31 and extending from the lower end of the welding gun 12.

[0054] After the wire threading is completed, the U-shaped rod 35-12 moves back to move the round block 35-13, the second spring 35-15, the movable block 35-14 and the ball 35-16, so that the ball 35-16 contacts the surface of the welding wire. As the round block 35-13 moves, the second spring 35-15 is compressed, and the elastic force generated makes the ball 35-16 contact closely with the surface of the welding wire, which plays the role of clamping and fixing the welding wire. The ball 35-16 is embedded in the movable block 35-14 for rotation.

[0055] A ball 35-16 is rotatably connected to the movable block 35-14. The arrangement of the ball 35-16 can prevent the moving wire feeding from being affected when the welding wire is clamped, and can also prevent the feeding of the welding wire from being affected when the welding wire rotates with the wire outlet head 31. At the same time, the surface of the welding wire is shaped, and a limiting groove 35-17 is provided in the groove body 35-11. A limiting block 35-18 is fixedly connected to the movable block 35-14, and is slidably connected to the limiting groove 35-17. The movable block 35-14 is limited and guided by the limiting groove 35-17 and the limiting block 35-18, so that it will not rotate when it moves and will not separate from the groove body 35-11 on the wire outlet head 31.

[0056] The connecting member 35-2 includes a limit bolt 35-21 fixedly connected to the U-shaped rod 35-12. Through the setting of the limit bolt 35-21, when the guide frame 35-22 moves up and down, it moves internally, thereby driving the U-shaped rod 35-12 to move, realizing the movement of the round block 35-13, the second spring 35-15, the movable block 35-14 and the ball 35-16. The surface of the limit bolt 35-21 is provided with a guide frame 35-22.

[0057] The top of the guide frame 35-22 is fixedly connected to a first ring plate 35-23, and the first ring plate 35-23 is rotatably connected to the second ring plate 35-24. Through the first ring plate 35-23 and the second ring plate 35-24, the first ring plate 35-23 can be driven to move up and down when the second ring plate 35-24 moves up and down, thereby realizing the up and down movement of multiple guide frames 35-22 fixed on the first ring plate 35-23, and when the wire head 31 rotates to drive the clamping shaping member 35-1 and the limit bolt 35-21 and the guide frame 35-22 thereon to rotate, the first ring plate 35-23 can be rotated without affecting the normal rotation of the wire head 31, and the second ring plate 35-24 will not rotate.

[0058] The actuator 35-3 includes a movable plate 35-31 slidably connected to the welding gun 12, and its lower end is fixedly connected to the top of the second ring plate 35-24. The slider 23-4 is fixedly connected to a guide plate 35-32. The guide plate 35-32 is provided with a guide hole 35-33. The guide hole 35-33 is divided into three parts. The guide hole 35-33 is divided into three parts. The first part and the third part are parallel linear guide rails. The second part connects the ends of the first part and the third part. The first and third parts are guide posts 3 When 5-34 moves inside it, the movable plate 35-31 will not move. The second part is the guide column 35-34. When it moves inside it, the movable plate 35-31 can be moved up and down, thereby realizing the up and down movement of the second ring plate 35-24. Under the action of the connecting member 35-2, the ball 35-16 on the clamping shaping member 35-1 is moved away from the axis of the wire outlet head 31 or moved closer to the axis of the wire outlet head 31, so as to facilitate the welding wire to pass through the wire outlet head 31 and be clamped after passing through.

[0059] A guide post 35-34 is slidably connected to the guide hole 35-33 and is fixedly connected to the upper end of the movable plate 35-31. When the guide post 35-34 is in the guide hole 35-33, when the guide plate 35-32 does not actively move, the guide post 35-34 will not move in the guide hole 35-33, thereby limiting the movable plate 35-31 and preventing it from moving up and down at will. When the welding wire passes through the driving member 23, the operating handle 23-8 causes the slider 23-4 to drive the passive wheel 23-9 to move, and at the same time, the slider 23-4 drives the guide plate 35-32 to move.

[0060] The guide post 35-34 passes through the first part of the guide hole 35-33 through the second part and enters the third part, so that the guide post 35-34 drives the movable plate 35-31 to move upward, and then under the action of the connecting member 35-2, the ball 35-16 on the clamping shaping member 35-1 moves away from the axis of the wire outlet head 31, so that the welding wire can easily pass through the wire outlet head 31 when passing through the driving member 23. After completion, the handle 23-8 is released and the corresponding structure is reset under the action of the rebound of the first spring 23-6, so that the ball 35-16 contacts the surface of the welding wire to complete the fixation.

[0061] Reference Figure 7 、 Figure 11 、 Figure 14 The telescopic member 41 includes an annular groove 41-1 opened in the wire outlet head 31, an airbag 41-2 is installed in the annular groove 41-1, a hollow ring 41-3 is slidably connected in the annular groove 41-1, and it contacts the airbag 41-2, a movable rod 41-4 is slidably connected to the wire outlet head 31, and its two ends are respectively fixedly connected to the bottom of the hollow ring 41-3 and the top of the scraper ring 42, a slot 41-5 is opened in the wire outlet head 31, and a rubber ring 43 is slidably connected therein, and a connecting block 41-6 is fixedly connected between the movable rod 41-4 and the rubber ring 43.

[0062] The airbag 41-2 is filled with gas. Through the setting of the airbag 41-2, when performing welding operations, as the welding gun 12 moves downward, the scraper ring 42 first contacts the steel structure. As the welding gun 12 moves downward, the scraper ring 42 and the movable rod 41-4 thereon move into the wire head 31, and then act on the hollow ring 41-3 to move in the ring groove 41-1 to apply pressure to the airbag 41-2 to compress the gas inside it, and driven by the connecting block 41-6, the rubber ring 43 moves into the wire head 31, so that the bottom of the welding gun 12 is completely exposed and contacts the steel structure for power.

[0063] After welding is completed, the welding gun 12 moves up, and the welding gun 12 assembly is separated from the steel structure. Under the action of the recovery of the gas inside the airbag 41-2, the hollow ring 41-3, the movable rod 41-4, the connecting block 41-6 and the scraper ring 42 are moved back, and the reset and removal of the rubber ring 43 can scrape and clean the bottom of the welding gun 12, reducing the adhesion of welding slag to the lower end of the welding gun 12, ensuring that the contact can be normally energized during the next welding. The scraper ring 42 moves down and resets, which can clean the end of the welding wire and reduce the situation where welding slag solidifies between the wire head 31 and the welding wire.

[0064] During use, by passing the welding wire through the hose 22, holding the handle 23-8 to move the passive wheel 23-9, and moving the guide plate 35-32, the guide column 35-34 drives the movable plate 35-31 to move upward, and then acts on the connecting part 35-2 to move the clamping and shaping assembly, and move the multiple balls 35-16 away from the axis of the wire outlet head 31, and smoothly pass the welding wire between the active wheel 23-2 and the passive wheel 23-9, and through the welding gun 12 and the wire outlet head 31 to the lower end.

[0065] Then, the handle 23-8 is loosened, and under the action of the rebound of the first spring 23-6, the passive wheel 23-9 moves back, so that the driving wheel 23-2 and the passive wheel 23-9 are in close contact with the welding wire, and the ball 35-16 is in close contact and clamped with the surface of the welding wire. The welding gun 12 and the steel structure are energized, and the operation of the welding machine body 11 is controlled to move the welding gun 12 so that the lower end of the welding gun 12 is in contact with the steel structure.

[0066] During this process, the rubber ring 43 moves into the wire outlet head 31, and at the same time, the motor 23-3 runs to rotate the driving wheel 23-2 to realize the feeding of the welding wire. During this process, with the cooperation of the linkage part 32, the vertical plate 33 and the transmission part 34, the wire outlet head 31 and the clamping shaping part 35-1 rotate back and forth, so that the welding slag and welding liquid are not easy to solidify at the contact point between the wire outlet head 31 and the welding wire and the welding gun 12, reducing the blockage during the feeding of the welding wire. As the welding gun 12 continues to move and the welding wire is fed, the steel structure is welded.

[0067] Through the cooperation of the anti-clogging shaping mechanism 3 and the wire feeding mechanism 2, the welding slag is not easily attached to the position where the welding wire comes out of the welding gun 12 during the welding process, and the welding wire can be clamped and shaped. Compared with the existing technology, the occurrence of wire blockage is reduced and the quality of welding is improved. The protective component 4 can clean and shield the lower end of the welding gun 12 in time. Compared with the existing technology, the increase in contact resistance during use is reduced, which reduces the impact on the welding effect.

Claims

1. A steel structure positioning welding device, comprising a welding machine body (11) and a welding gun (12) arranged on the welding machine body (11), characterized in that: It also includes a wire feeding mechanism (2), a wire outlet head (31), a vertical plate (33), and a transmission member (34), wherein The wire feeding mechanism (2) is arranged on the welding gun (12), and the wire feeding channel of the wire feeding mechanism (2) is communicated with the internal channel of the welding gun (12). The wire feeding mechanism (2) includes a driving wheel (23-2) and a driven wheel (23-9). The driving wheel (23-2) is fixedly connected to the rotating output shaft of the motor (23-3). The welding wire passes through the gap between the driving wheel (23-2) and the driven wheel (23-9). The vertical plate (33) is driven by the driving wheel (23-2) to reciprocate along the axial direction of the welding gun (12). The wire outlet head (31) is connected to the vertical plate (33) through a transmission member (34). The wire outlet head (31) is arranged along the circumference of the inner channel of the welding gun (12) and is rotatably connected to the inner cavity wall of the welding gun (12). The wire outlet head (31) is provided with a plurality of radially arranged grooves (35-11) at different axial positions. The channel in the tank (35-11) and the welding gun (12) is connected. The ball (35-16) moves in the groove body (35-11) and when it moves to the opening at the end of the groove body (35-11), a portion of the ball (35-16) enters the channel in the welding gun (12).

2. The device according to claim 1, characterized in that The wire feeding mechanism (2) further includes a fixed plate (23-1), a slider (23-4), a first spring (23-6), a crossbar (23-7), and a handle (23-8), wherein The fixing plate (23-1) is fixed in the inner cavity of the welding gun (12). The motor (23-3) is fixed on the fixed plate (23-1). The slider (23-4) is slidably connected to the fixed plate (23-1). The passive wheel (23-9) is rotatably connected to the slider (23-4). The two ends of the first spring (23-6) are respectively arranged on the slider (23-4) and the fixed plate (23-1). The crossbar (23-7) is fixed on the passive wheel (23-9). The handle (23-8) is arranged at the end of the crossbar (23-7).

3. The device according to claim 2, characterized in that The vertical plate (33) is connected to the driving wheel (23-2) through a linkage member (32), and the linkage member (32) includes a rotating column (32-1), a first empty plate (32-2), a second empty plate (32-3), a rotating disk (32-4), a first short column (32-5), and a second short column (32-6), wherein The turntable (32-4) is fixedly connected to the driving wheel (23-2). The first short column (32-5) is fixed on the turntable (32-4) and is eccentrically arranged. The first hollow plate (32-2) is provided with a long strip through hole, and the long strip through hole is slidably connected to the first short column (32-5). The two ends of the rotating column (32-1) are respectively fixed to the ends of the first empty plate (32-2) and the second empty plate (32-3). The second hollow plate (32-3) is provided with a long strip through hole. The second short column (32-6) is slidably connected to the long strip through hole of the second hollow plate (32-3). The upper end of the vertical plate (33) is fixedly connected to the second short column (32-6).

4. The device according to claim 1, characterized in that The transmission member (34) includes a circular gear (34-6), a rotating rod (34-2), a bevel gear (34-3), and a bevel gear ring (34-4), wherein The circular gear (34-6) meshes with the toothed plate (34-5) provided at the lower portion of the vertical plate (33). The rotating rod (34-2) is rotatably connected to the inner cavity wall of the welding gun (12) and one end is fixedly connected to the circular gear (34-6). The bevel gear (34-3) is arranged at the other end of the rotating rod (34-2). The bevel gear ring (34-4) is arranged along the circumference of the wire outlet head (31) and meshes with the bevel gear (34-3).

5. The device according to claim 2, characterized in that It also includes a U-shaped rod (35-12), a round block (35-13), a movable block (35-14), a second spring (35-15), a limit bolt (35-21), a guide frame (35-22), a first ring plate (35-23), a second ring plate (35-24), a movable plate (35-31), a guide plate (35-32), and a guide column (35-34), wherein A movable block (35-14) is provided in each tank (35-11). The movable block (35-14) is slidably connected to the slot body (35-11). The ball (35-16) is rotatably connected to the movable block (35-14). The round block (35-13) is connected to the movable block (35-14) via a second spring (35-15). The ends of the U-shaped rod (35-12) are respectively fixedly connected to the round blocks (35-13) in different trough bodies (35-11). The limit bolt (35-21) is fixed on the U-shaped rod (35-12). The guide frame (35-22) is connected to the limit bolt (35-21) in a sliding manner. The first ring plate (35-23) is arranged along the circumference of the wire head (31) and is fixed on the guide frame (35-22). The second ring plate (35-24) is rotatably connected to the first ring plate (35-23). The lower end of the movable plate (35-31) is fixed on the second ring plate (35-24). The guide post (35-34) is fixed to the top of the movable plate (35-31). The guide plate (35-32) is fixed on the slider (23-4) and is provided with a guide hole (35-33). The guide post (35-34) is slidably connected in the guide hole (35-33).

6. The device according to claim 5, characterized in that The guide frame (35-22) is provided with a guide rail inclined downward, and the limit bolt (35-21) is slidably provided on the guide rail of the guide frame (35-22).

7. The device according to claim 5, characterized in that The guide hole (35-33) is divided into three parts, the first part and the third part are parallel linear guide rails, and the second part connects the ends of the first part and the third part; The first and third parts of the guide hole (35-33) are guide posts (35-34). When the guide posts (35-34) move therein, the movable plate (35-31) will not move. The second part is the guide post (35-34). When the guide posts (35-34) move therein, the movable plate (35-31) can move up and down, thereby achieving the up and down movement of the second ring plate (35-24).

8. The device according to claim 1, characterized in that The protective assembly (4) further comprises a telescopic member (41) mounted on the wire outlet head (31), a scraper ring (42) being fixed to the lower end of the telescopic member (41), and a rubber ring (43) being mounted on the telescopic member (41).

9. The device according to claim 8, characterized in that The telescopic member (41) includes an annular groove (41-1) provided in the thread outlet head (31), an airbag (41-2) is installed in the annular groove (41-1), a hollow ring (41-3) is slidably connected in the annular groove (41-1) and contacts the airbag (41-2), a movable rod (41-4) is slidably connected to the thread outlet head (31), and its two ends are respectively fixedly connected to the bottom of the hollow ring (41-3) and the top of the scraper ring (42), a slot (41-5) is provided in the thread outlet head (31), and a rubber ring (43) is slidably connected therein, and a connecting block (41-6) is fixedly connected between the movable rod (41-4) and the rubber ring (43).

10. The device according to claim 1, characterized in that The wire feeding mechanism (2) further comprises a round shell (21) fixed to the upper end of the welding gun (12) and a guide cover (24), and a hose (22) is connected to the round shell (21).

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