Welding wire clamping and feeding assembly and method for water-cooled wall pipeline welding

Abstract

The invention relates to the technical field of welding wire clamping and feeding, in particular to a welding wire clamping and feeding assembly and method for water-cooled wall pipeline welding, which comprises a rectangular box, a feeding mechanism and a fast collecting mechanism are arranged in the rectangular box, the feeding mechanism comprises a wedge-shaped plate, a first disc, a first ratchet wheel and a first pawl, the wedge-shaped plate is arranged on the inner side of the rectangular box, and the first disc is arranged on the inner side of the rectangular box. And the top of the wedge-shaped plate is fixedly connected with an L-shaped plate. According to the welding device, handheld wire feeding is not needed, supporting points and limiting can be provided for placement of welding wires in the welding process, automatic interval stable feeding is achieved, the length can be effectively controlled, the phenomenon of raw wires is prevented, meanwhile, when welding is finished, the welding wires can be rapidly taken back to leave a molten pool, and the situation that subsequent welding is affected due to the fact that knots are generated at the tail ends of the welding wires is avoided; under the action of the first disc, the second disc and the arc-shaped block, the bent and deformed welding wire can be kept on the same line, it is guaranteed that the tail end of the welding wire can be aligned with a molten pool, and the influence on the welding quality is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of welding wire clamping and feeding, in particular to a welding wire clamping and feeding component and method for welding of water-cooled wall pipelines. Background Art

[0002] During boiler maintenance, tungsten inert gas welding is used for the welding of water-cooled walls. Since the welding operation space of the water-cooled wall is a confined space, in order to ensure the maintenance period, welders are required to work continuously in the confined space for a long time. Welding needs to be done after the water-cooled wall is connected. During the welding process, the end of the welding wire is placed between the root gaps of the two welding pipes (the welding wire is generally attached to the root of one of the pipes to act as a fulcrum for force). During the welding process, the welding nozzle swings forward. During the swinging process of the welding nozzle, the welding wire is fed intermittently into the molten pool. The feeding length each time is between 1-2MM. The wire feeding in the prior art is hand-held wire feeding, which relies entirely on feeling and experience. However, due to the long working hours of welders, attention loss and numbness of hands and feet may occur, which may easily lead to unstable wire feeding. Raw wire is a kind of unfused defect, and its harm is the same as that of unfused defect, with stress concentration and great harm. The reason is that when adding wire to the molten pool, the length is not well controlled, and too much wire is filled and not completely melted in time. The raw wire phenomenon cannot be detected by welding film, which may cause rework. At the same time, at the end of welding, the welding wire needs to be quickly removed from the molten pool to avoid lumps at the end of the welding wire, which will affect subsequent welding. In a confined space, the possibility of the welding wire being resisted and collided greatly increases, and the welding wire may be deformed after being resisted and collided. The feeding point at the end of the welding wire may not be able to accurately reach the molten pool due to the deformation (which will cause deviation), which will also greatly affect the welding quality. Therefore, in response to the above problems, a welding wire clamping and feeding assembly and method for water-cooled wall pipe welding are proposed. Summary of the invention

[0003] The object of the present invention is to provide a welding wire clamping and feeding assembly and method for water-cooled wall pipe welding, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A welding wire clamping and feeding assembly for water-cooled wall pipe welding, comprising a rectangular box, wherein a feeding mechanism and a quick-collecting mechanism are arranged in the rectangular box, and the feeding mechanism comprises a wedge plate, a first disc, a first ratchet wheel and a first pawl; The wedge-shaped plate is arranged on the inner side of the rectangular box, the top of the wedge-shaped plate is fixedly connected to an L-shaped plate, the front side of the L-shaped plate is rotatably connected to a first round rod, the front end of the first round rod is fixedly connected to a first disc, the front side of the first disc is rotatably connected to a rotating rod, the outer side of the rotating rod is fixedly sleeved with a first ratchet, the first pawl is rotatably mounted on the front side of the first disc, and the end of the first pawl extends to the inner side of the first ratchet to clamp the first ratchet; The quick-collecting mechanism includes a second round rod, a second round disc, a coil spring and a second ratchet; The second round rod is rotatably installed on the rear inner wall of the rectangular box, the second disc is fixedly sleeved on the outer side of the second round rod, the coil spring is wound and fixed on the outer side of the second round rod, a fixing block is fixedly connected to the rear inner wall of the rectangular box, the end of the coil spring is fixedly connected to the top of the fixing block, the second ratchet is fixedly installed on the front end of the second round rod, the outer sides of the first disc and the second disc are both provided with annular grooves, the inner sides of the annular grooves are set as semicircular arc surfaces, and a rubber ring is embedded on the inner side of the semicircular arc surfaces, and the outer sides of the first disc and the second disc can be in contact with welding wire.

[0005] Further preferably, a support block is fixedly connected to the front side of the first disk, a first spring is fixedly connected between the bottom of the support block and the first pawl, a gear is provided on the outer fixed sleeve of the rotating rod, a motor is fixedly connected to the front side of the L-shaped plate, a vertical rod is fixedly connected to the output end of the motor, the front side of the vertical rod is rotatably connected to a connecting rod via a pin shaft, the top end of the connecting rod is rotatably connected to the vertical plate, a tooth plate is fixedly connected to the left side of the vertical plate, and the gear is meshed with the tooth plate.

[0006] Further preferably, a rectangular groove is opened on the right side of the vertical plate, a first positioning rod is fixedly connected between the top inner wall and the bottom inner wall of the rectangular groove, an L-shaped rod is fixedly connected to the top of the wedge plate, a rectangular block is fixedly connected to the left side of the L-shaped rod, and the rectangular block is slidably mounted on the outside of the first positioning rod.

[0007] Further preferably, a rectangular seat is provided on the right side of the second ratchet, a second pawl is rotatably connected to the left side of the rectangular seat, an end of the second pawl extends to the inner side of the second ratchet to clamp the second ratchet, a cross block is fixedly connected to the left side of the rectangular seat, and a second spring is fixedly connected between the bottom of the cross block and the top of the second pawl.

[0008] Further preferably, a pushing mechanism is provided on the front side of the rectangular box, the pushing mechanism includes a T-shaped rod, a second positioning rod and a squeezing roller, the T-shaped rod movably contacts the front side of the rectangular box, two second positioning rods are fixedly installed on the rear side of the T-shaped rod, the rectangular box is slidably sleeved on the outside of the two second positioning rods, the rear ends of the two second positioning rods are fixedly connected with a U-shaped seat, the squeezing roller is rotatably installed between the inner walls on both sides of the U-shaped seat, the squeezing roller cooperates with the inclined surface of the wedge plate, the squeezing roller can roll on the inclined surface of the wedge plate and generate squeezing force, under the action of the squeezing force, the wedge plate can move upward, two third springs in a stretched state are fixedly connected between the front side of the U-shaped seat and the front inner wall of the rectangular box, the third springs are movably sleeved on the outside of the corresponding second positioning rods, and an observation hole is opened on the front inner wall of the rectangular box.

[0009] Further preferably, two third positioning rods are fixedly connected to the rear side of the T-shaped rod, the rear end of the third positioning rod passes through the observation hole and is fixedly connected to the front side of the rectangular seat, an L-shaped block is fixedly connected to the front inner wall of the rectangular box, the L-shaped block is slidably sleeved on the outside of the two third positioning rods, two cylinders are fixedly connected to the bottom inner wall of the rectangular box, two positioning posts are fixedly connected to the bottom of the wedge-shaped plate, the cylinders are slidably sleeved on the outside of the corresponding positioning posts, a fourth spring in a stretched state is fixedly connected between the top of the cylinder and the bottom of the wedge-shaped plate, and the fourth spring is movably sleeved on the outside of the positioning posts.

[0010] Further preferably, a switch is fixedly connected to the inner wall of the rear side of the rectangular box, the top of the wedge plate is in contact with the switch, the switch is in an on state, a battery is fixedly connected to the top of the wedge plate, two arc blocks are fixedly connected to the left and right sides of the rectangular box, the welding wire passes between the two arc blocks, and a grip block is fixedly connected to the left side of the rectangular box.

[0011] Further preferably, a support and limiting mechanism is provided at the bottom of the rectangular box, and the support and limiting mechanism includes a semicircular ring block, a first semicircular ring groove and a second semicircular ring groove. The semicircular ring block is movably sleeved on the outer side of a water-cooled wall tube body below, and the two semicircular ring blocks are in contact to form a circular ring block. The first semicircular ring groove is opened at the top of the corresponding semicircular ring block, and the two first semicircular ring grooves form a circular ring groove. The second semicircular ring groove is opened at the outer side of the corresponding semicircular ring block, and the two second semicircular ring grooves form a circular ring groove. The bottom of the semicircular ring block is fixedly connected to a connecting block, and the two connecting blocks are threadedly connected by bolts.

[0012] Further preferably, the bottom of the rectangular box is fixedly connected with a vertical column, the end of the vertical column extends into the corresponding first semicircular annular groove and is embedded with a first ball, the outer side of the vertical column is slidably connected to the side wall of the first semicircular annular groove, the first ball is in rolling contact with the bottom inner wall of the first semicircular annular groove, the bottom of the rectangular box is fixedly connected with a fixing rod, the right side of the fixing rod is fixedly connected with a cross column, the end of the cross column extends into the second semicircular annular groove and is embedded with a second ball, the outer side of the cross column is slidably connected to the top inner wall and the bottom inner wall of the second semicircular annular groove, and the second ball is in rolling contact with the inner side wall of the second semicircular annular groove.

[0013] The present invention also provides a welding wire clamping and feeding method for water-cooled wall pipeline welding, comprising the following steps: Step 1: The continuous operation of the motor can drive the welding wire to be fed automatically and stably at intervals, and can control the length to prevent the wire from being raw due to excessive feeding. At the same time, the continuous operation of the motor can drive the coil spring to rotate and compress and store force; Step 2: The worker holds the grip block with one hand and presses the T-shaped rod to drive the rectangular box to rotate. The rectangular box drives the welding wire to rotate around the center of the water-cooled wall tube; Step 3: After welding is completed, release the pressure on the T-shaped rod, and the coil spring drives the second disc to rotate rapidly forward through the second round rod. The second disc rapidly rotates forward and drives the welding wire to move to the left through the rubber ring embedded inside the second disc, so that the welding wire can be quickly retracted out of the molten pool to avoid the formation of lumps at the end of the welding wire. Step 4: Rotate the bolts in the opposite direction to separate them from the corresponding connecting blocks. Now you can remove the semicircular ring blocks from the water-cooled wall tube body below.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The motor of the present invention rotates the first half circle and drives the connecting rod to move downward through the vertical rod, the connecting rod drives the tooth plate downward through the vertical plate, the tooth plate drives the rotating rod to rotate through the gear, the rotating rod drives the first disc to rotate through the first pawl through the positive rotation of the first ratchet, the first disc rotates and drives the welding wire to move right for feeding operation through the rubber ring embedded on the inner side thereof, the welding wire moves right and drives the second disc to rotate in the opposite direction, the second disc drives the coil spring to rotate and compress and store force through the second round rod, similarly, when the motor rotates the second half circle and drives the vertical rod to rotate upward, similarly, the rotating rod drives the first ratchet to rotate in the opposite direction, the first disc does not drive the welding wire to move right for feeding operation, the motor can drive the welding wire to be fed automatically and stably at intervals when the motor works continuously, and the length can be controlled well to prevent the phenomenon of raw wire from being caused by excessive wire feeding.

[0015] 2. The continuous operation of the motor can drive the coil spring to rotate and compress and store force. Under the action of the first disc, the second disc and the arc block, the bent and deformed welding wire can be kept in a straight line, and argon arc welding is performed to ensure that the end of the welding wire can be delivered to the molten pool, thereby ensuring the welding quality.

[0016] 3. The worker holds the grip block in one hand and presses the T-shaped rod to drive the rectangular box to rotate with the center of the water-cooled wall tube body as the center. The rectangular box drives the vertical column to slide on the side wall of the circular groove, and the fixed rod drives the horizontal column to roll on the inner wall of the circular groove, thereby completing a circle of welding operations, providing support points and limit points during the welding process, and improving the quality of welding.

[0017] 4. When welding is completed, release the pressure on the T-bar, and the elastic force of the third spring drives the U-shaped seat to move forward to relax the support on the wedge plate. The elastic force of the fourth spring drives the T-shaped plate to move downward, and the motor stops working. The first round rod drives the first disc to move downward and separate from the welding wire. At the same time, the U-shaped seat drives the T-bar forward through the second positioning rod, so that the rectangular seat drives the second pawl to move forward and separate from the second ratchet. The coil spring in the compressed and stored state resets and drives the second disc to rotate forward rapidly. The second disc rotates forward rapidly and drives the welding wire to move to the left through the rubber ring embedded on its inner side, so that the welding wire can be quickly retracted out of the molten pool to avoid the formation of lumps at the end of the welding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a right-side stereoscopic structural schematic diagram of the present invention; Figure 3 It is a bottom-up three-dimensional structural schematic diagram of a rectangular box in the present invention; Figure 4 It is a schematic diagram of the internal three-dimensional structure of the rectangular box in the present invention from the front view; Figure 5 It is a schematic diagram of the internal three-dimensional structure of the rectangular box in the present invention from a rear view; Figure 6 for Figure 4 Left view of Figure 7 It is a schematic diagram of the three-dimensional structure of the connection between the trapezoidal plate and the L-shaped plate in the present invention; Figure 8 for Figure 7 A right-view stereoscopic structure diagram of ; Fig. 9 is a schematic diagram of the three-dimensional structure of the connection between the first disc and the first ratchet; Fig.10 is a schematic diagram of a three-dimensional structure of a connection between a second ratchet wheel and a second pawl; Fig.11It is a left side view of the first disc in the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of two semicircular ring blocks connected in the present invention.

[0019] In the figure: 1. Wedge plate; 101. L-shaped plate; 102. first round rod; 103. first round plate; 104. rotating rod; 105. first ratchet; 106. first ratchet pawl; 107. supporting block; 108. first spring; 109. gear; 110. motor; 111. vertical rod; 112. connecting rod; 113. vertical plate; 114. tooth plate; 115. rectangular groove; 116. first positioning rod; 117. L-shaped rod; 118. rectangular block; 2. second round rod; 201. second round disc; 202. fixed block; 203. coil spring; 204. second ratchet; 205. rectangular seat; 206. second ratchet pawl; 207. horizontal block; 208. second spring; 3. T-shaped rod; 301. second positioning rod; 302. U-shaped seat; 303. squeezing roller; 304. third spring; 305. observation hole; 306. third positioning rod; 307. L-shaped block; 308. cylinder; 309. positioning column; 310. fourth spring; 4. semicircular ring block; 401. first semicircular ring groove; 402. second semicircular ring groove; 403. connecting block; 404. bolt; 405. vertical column; 406. first ball; 407. fixing rod; 408. horizontal column; 409. second ball; 5. Switch; 6. Battery; 7. Arc block; 8. Grip block; 9. Rectangular box; 10. Water-cooled wall tube; 11. Circular groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example See also Figure 1-12 The present invention provides a technical solution: a welding wire clamping and feeding assembly for water-cooled wall pipe welding, comprising a rectangular box 9, wherein a feeding mechanism and a quick-collecting mechanism are arranged in the rectangular box 9, and the feeding mechanism comprises a wedge plate 1, a first disc 103, a first ratchet 105 and a first pawl 106; The wedge-shaped plate 1 is arranged on the inner side of the rectangular box 9, the top of the wedge-shaped plate 1 is fixedly connected with an L-shaped plate 101, the front side of the L-shaped plate 101 is rotatably connected with a first round rod 102, the front end of the first round rod 102 is fixedly connected with a first disc 103, the front side of the first disc 103 is rotatably connected with a rotating rod 104, the outer side of the rotating rod 104 is fixedly sleeved with a first ratchet 105, the first pawl 106 is rotatably installed on the front side of the first disc 103, the end of the first pawl 106 extends to the inner side of the first ratchet 105 to clamp the first ratchet 105; The quick-collecting mechanism comprises a second round rod 2, a second round disc 201, a coil spring 203 and a second ratchet 204; The second round rod 2 is rotatably installed on the rear inner wall of the rectangular box 9, the second disc 201 is fixedly sleeved on the outer side of the second round rod 2, the coil spring 203 is wound and fixed on the outer side of the second round rod 2, a fixed block 202 is fixedly connected to the rear inner wall of the rectangular box 9, the end of the coil spring 203 is fixedly connected to the top of the fixed block 202, the second ratchet 204 is fixedly installed on the front end of the second round rod 2, the outer sides of the first disc 103 and the second disc 201 are both provided with annular grooves 11, the inner sides of the annular grooves 11 are set as semicircular arc surfaces, and a rubber ring is embedded on the inner side of the semicircular arc surfaces, and the outer sides of the first disc 103 and the second disc 201 can be in contact with welding wire.

[0022] The present invention does not require hand-held wire feeding. During the welding process, it can provide support points and limit positions for the placement of the welding wire, so that the feeding is automatically and stably spaced. The length can be effectively controlled to prevent the occurrence of raw wire. At the same time, at the end of welding, the welding wire can be quickly retracted from the molten pool to avoid the formation of lumps at the end of the welding wire, which affects subsequent welding. Under the action of the first disc 103, the second disc 201 and the arc block 7, the bent and deformed welding wire can be kept in a line, ensuring that the end of the welding wire can be aligned with the molten pool, reducing the impact on the welding quality.

[0023] In this embodiment, specifically: a support block 107 is fixedly connected to the front side of the first disc 103, a first spring 108 is fixedly connected between the bottom of the support block 107 and the first pawl 106, a gear 109 is fixedly sleeved on the outer side of the rotating rod 104, a motor 110 is fixedly connected to the front side of the L-shaped plate 101, a vertical rod 111 is fixedly connected to the output end of the motor 110, a connecting rod 112 is rotatably connected to the front side of the vertical rod 111 through a pin shaft, a vertical plate 113 is rotatably connected to the top of the connecting rod 112, a toothed plate 114 is fixedly connected to the left side of the vertical plate 113, and the gear 109 is meshed with the toothed plate 114; In this embodiment, specifically: a rectangular groove 115 is opened on the right side of the vertical plate 113, a first positioning rod 116 is fixedly connected between the top inner wall and the bottom inner wall of the rectangular groove 115, an L-shaped rod 117 is fixedly connected to the top of the wedge plate 1, a rectangular block 118 is fixedly connected to the left side of the L-shaped rod 117, and the rectangular block 118 is slidably sleeved on the outside of the first positioning rod 116; When in use, the worker holds the grip block 8 with one hand and presses the T-shaped rod 3, and holds the argon arc welding with the other hand to perform welding operations. At this time, the top of the wedge plate 1 is in contact with the switch 5, and the switch 5 is in the starting state. The motor 110 works, and the motor 110 rotates the first half circle to drive the vertical rod 111 to rotate downward, and the vertical rod 111 drives the connecting rod 112 to move downward, and the connecting rod 112 drives the vertical plate 113 to move, and the vertical plate 113 drives the first positioning rod 116 to move, and the rectangular block 118 performs a positioning operation on the first positioning rod 116, and the vertical plate 113 drives the tooth plate 114 downward, and as the tooth plate 114 moves downward, it drives the gear 109 to rotate forward, and the gear 109 drives the rotating rod 104 to rotate, and the rotating rod 104 drives the first ratchet 105 to rotate, and the first ratchet 105 rotates forward through the first pawl 106 to drive the first disc 103 to rotate, and the first disc 103 rotates through the rubber ring embedded inside it to drive the welding wire to move to the right to perform feeding operations; The welding wire moves to the right and drives the second disc 201 to rotate in the opposite direction. The second disc 201 rotates in the opposite direction and drives the second rod 2 to rotate in the opposite direction. The second rod 2 drives the second ratchet 204 to rotate in the opposite direction. The second ratchet 204 is not engaged with the second pawl 206. The second ratchet 204 rotates and passes over the second pawl 206. At the same time, the rotation of the second rod 2 drives the coil spring 203 to rotate and compress and store force. Similarly, when the motor 110 rotates the second half circle, it drives the vertical rod 111 to rotate upward, the vertical rod 111 drives the connecting rod 112 to move upward, the connecting rod 112 drives the vertical plate 113 to move, and the vertical plate 113 drives the tooth plate 114 to move upward. As the tooth plate 114 moves upward, it drives the gear 109 to rotate in the opposite direction, the gear 109 drives the rotating rod 104 to rotate, and the rotating rod 104 drives the first ratchet 105 to rotate in the opposite direction, the first ratchet 105 is not engaged with the first pawl 106, and the first ratchet 105 rotates and passes through the first pawl 106. At this time, the first pawl 106 does not drive the first disc 103 to rotate, and the first disc 103 does not drive the welding wire to move to the right for feeding. At this time, the continuous operation of the motor 110 can drive the welding wire to automatically and stably feed the welding wire at intervals, and can control the length to prevent the phenomenon of raw wire from being caused by excessive wire feeding. At the same time, the continuous operation of the motor 110 can drive the coil spring 203 to rotate and compress and store force; In this embodiment, specifically: a rectangular seat 205 is provided on the right side of the second ratchet 204, a second pawl 206 is rotatably connected to the left side of the rectangular seat 205, an end of the second pawl 206 extends to the inner side of the second ratchet 204 to clamp the second ratchet 204, a horizontal block 207 is fixedly connected to the left side of the rectangular seat 205, and a second spring 208 is fixedly connected between the bottom of the horizontal block 207 and the top of the second pawl 206; In this embodiment, specifically: a pushing mechanism is provided on the front side of the rectangular box 9, and the pushing mechanism includes a T-shaped rod 3, a second positioning rod 301 and a squeezing roller 303. The T-shaped rod 3 is movably in contact with the front side of the rectangular box 9, and the two second positioning rods 301 are fixedly installed on the rear side of the T-shaped rod 3. The rectangular box 9 is slidably sleeved on the outer sides of the two second positioning rods 301. The rear ends of the two second positioning rods 301 are fixedly connected with a U-shaped seat 302. The squeezing roller 303 is rotatably installed between the inner walls of both sides of the U-shaped seat 302. The squeezing roller 303 cooperates with the inclined surface of the wedge plate 1. The squeezing roller 303 can roll on the inclined surface of the wedge plate 1 and generate squeezing force. Under the action of the squeezing force, the wedge plate 1 can move upward. Two third springs 304 in a stretched state are fixedly connected between the front side of the U-shaped seat 302 and the front inner wall of the rectangular box 9. The third springs 304 are movably sleeved on the outer sides of the corresponding second positioning rods 301. An observation hole 305 is opened on the front inner wall of the rectangular box 9. In this embodiment, specifically: two third positioning rods 306 are fixedly connected to the rear side of the T-shaped rod 3, the rear end of the third positioning rod 306 passes through the observation hole 305 and is fixedly connected to the front side of the rectangular seat 205, an L-shaped block 307 is fixedly connected to the inner wall of the front side of the rectangular box 9, and the L-shaped block 307 is slidably sleeved on the outside of the two third positioning rods 306, two cylinders 308 are fixedly connected to the inner wall of the bottom of the rectangular box 9, and two positioning columns 309 are fixedly connected to the bottom of the wedge plate 1, and the cylinder 308 is slidably sleeved on the outside of the corresponding positioning column 309, and a fourth spring 310 in a stretched state is fixedly connected between the top of the cylinder 308 and the bottom of the wedge plate 1, and the fourth spring 310 is movably sleeved on the outside of the positioning column 309; When welding is completed, the pressing force on the T-shaped rod 3 is released, and the third spring 304 in the compressed state is reset, and the elastic force of the third spring 304 drives the U-shaped seat 302 to move forward, and the U-shaped seat 302 drives the squeezing roller 303 to move forward to relax the support for the wedge plate 1. At this time, the fourth spring 310 in the compressed state is reset, and the elastic force of the fourth spring 310 drives the wedge plate 1 to move downward, and the wedge plate 1 drives the two positioning posts 309 to move downward, and the cylinder 308 positions the positioning posts 309, and the wedge plate 1 moves downward and separates from the switch 5, so that the switch 5 is turned off, and the motor 110 stops working, and at the same time, the wedge plate 1 drives the L-shaped plate 101 to move downward, and the L-shaped plate 101 drives the first round rod 102 to move downward, and the first round rod 102 drives the first disc 103 to move downward and separate from the welding wire; At the same time, the U-shaped seat 302 drives the two second positioning rods 301 to move forward, the second positioning rod 301 drives the T-shaped rod 3 to move forward, the T-shaped rod 3 drives the two third positioning rods 306 to move forward, the third positioning rod 306 drives the rectangular seat 205 to move forward, the rectangular seat 205 drives the second pawl 206 to move forward and separate from the second ratchet 204, the second pawl 206 no longer limits the second ratchet 204, and the coil spring 203 in the compressed and stored force state is reset, the coil spring 203 drives the second round rod 2 to rotate forward quickly, the second round rod 2 drives the second disc 201 to rotate forward quickly, and the second disc 201 rotates forward quickly, and the second disc 201 drives the welding wire to move left through the rubber ring embedded inside thereof, so that the welding wire can be quickly retracted to leave the molten pool to avoid the formation of a lump at the end of the welding wire; Then, the bolts 404 are rotated in the opposite direction to separate from the corresponding connecting blocks 403 , and the semicircular ring block 4 can be removed from the water-cooled wall tube body 10 below. Similarly, another group of water-cooled wall tube bodies 10 can be welded.

[0024] In this embodiment, specifically: a switch 5 is fixedly connected to the inner wall of the rear side of the rectangular box 9, the top of the wedge plate 1 is in contact with the switch 5, the switch 5 is in the turned-on state, the top of the wedge plate 1 is fixedly connected to a battery 6, the left and right sides of the rectangular box 9 are fixedly connected to two arc blocks 7, the welding wire passes between the two arc blocks 7, and the left side of the rectangular box 9 is fixedly connected to a grip block 8; Under the action of the first disc 103, the second disc 201 and the arc block 7, the bent and deformed welding wire can be kept in a straight line, and the argon arc welding is performed to ensure that the end of the welding wire can be delivered to the molten pool, thereby ensuring the welding quality.

[0025] In this embodiment, specifically: a supporting and limiting mechanism is provided at the bottom of the rectangular box 9, and the supporting and limiting mechanism includes a semicircular ring block 4, a first semicircular ring groove 401 and a second semicircular ring groove 402. The semicircular ring block 4 is movably sleeved on the outer side of a water-cooled wall tube body 10 below, and the two semicircular ring blocks 4 are in contact to form a circular ring block. The first semicircular ring groove 401 is opened at the top of the corresponding semicircular ring block 4, and the two first semicircular ring grooves 401 form a circular ring groove. The second semicircular ring groove 402 is opened on the outer side of the corresponding semicircular ring block 4, and the two second semicircular ring grooves 402 form a circular ring groove. The bottom of the semicircular ring block 4 is fixedly connected with a connecting block 403, and the two connecting blocks 403 are threadedly connected by bolts 404; In this embodiment, specifically: a vertical column 405 is fixedly connected to the bottom of the rectangular box 9, and the end of the vertical column 405 extends into the corresponding first semicircular annular groove 401 and is embedded with a first ball 406. The outer side of the vertical column 405 is slidably connected to the side wall of the first semicircular annular groove 401, and the first ball 406 is in rolling contact with the bottom inner wall of the first semicircular annular groove 401. A fixed rod 407 is fixedly connected to the bottom of the rectangular box 9, and a horizontal column 408 is fixedly connected to the right side of the fixed rod 407. The end of the horizontal column 408 extends into the second semicircular annular groove 402 and is embedded with a second ball 409. The outer side of the horizontal column 408 is slidably connected to the top inner wall and the bottom inner wall of the second semicircular annular groove 402, and the second ball 409 is in rolling contact with the inner side wall of the second semicircular annular groove 402.

[0026] The staff holds the grip block 8 with one hand and presses the T-shaped rod 3 to drive the rectangular box 9 to rotate. The rectangular box 9 drives the welding wire to rotate with the center of the water-cooled wall tube body 10 as the center. The rectangular box 9 drives the vertical column 405 to slide on the side wall of the circular groove formed by the two first semicircular ring grooves 401. The first ball 406 rolls on the bottom inner wall of the circular groove. The rectangular box 9 drives the fixed rod 407 to rotate. The fixed rod 407 drives the horizontal column 408 to slide in a circular groove formed by the two second semicircular ring grooves 402. The second ball 409 rolls on the inner wall of the circular groove, thereby completing a circle of welding operation, providing support points and limit points during the welding process, and improving the quality of welding.

[0027] The present invention also proposes a welding wire clamping and feeding method for water-cooled wall pipeline welding, comprising the following steps: Step 1: The motor 110 continuously works to drive the welding wire to be fed automatically and stably at intervals, and can control the length to prevent the wire from being too long and causing the wire to be raw. At the same time, the motor 110 continuously works to drive the coil spring 203 to rotate and compress and store force; Step 2: The worker holds the grip block 8 with one hand and presses the T-shaped rod 3 to drive the rectangular box 9 to rotate, and the rectangular box 9 drives the welding wire to rotate around the center of the water-cooled wall tube body 10; Step 3: After welding is completed, the pressing force on the T-shaped rod 3 is released, and the coil spring 203 drives the second disc 201 to rotate rapidly in the forward direction through the second round rod 2. The second disc 201 rapidly rotates in the forward direction and drives the welding wire to move to the left through the rubber ring embedded inside the second disc 201, so that the welding wire can be quickly withdrawn from the molten pool to avoid the formation of a lump at the end of the welding wire. Step 4: Reversely rotate the bolt 404 to separate it from the corresponding connecting block 403. At this time, the semicircular ring block 4 can be removed from the water-cooled wall tube body 10 below.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding wire clamping and feeding assembly for water-cooled wall pipe welding, comprising a rectangular box (9), characterized in that: The rectangular box (9) is provided with a feeding mechanism and a quick collection mechanism, wherein the feeding mechanism comprises a wedge plate (1), a first disc (103), a first ratchet wheel (105) and a first ratchet pawl (106); The wedge-shaped plate (1) is arranged on the inner side of the rectangular box (9); the top of the wedge-shaped plate (1) is fixedly connected to an L-shaped plate (101); the front side of the L-shaped plate (101) is rotatably connected to a first round rod (102); the front end of the first round rod (102) is fixedly connected to a first round disc (103); the front side of the first round disc (103) is rotatably connected to a rotating rod (104); the outer side of the rotating rod (104) is fixedly sleeved with a first ratchet (105); the first pawl (106) is rotatably mounted on the front side of the first round disc (103); the end of the first pawl (106) extends to the inner side of the first ratchet (105) to clamp the first ratchet (105); The quick-retracting mechanism comprises a second round rod (2), a second round disc (201), a coil spring (203) and a second ratchet wheel (204); The second round rod (2) is rotatably mounted on the rear inner wall of the rectangular box (9); the second disc (201) is fixedly sleeved on the outer side of the second round rod (2); the coil spring (203) is wound around and fixed on the outer side of the second round rod (2); a fixing block (202) is fixedly connected to the rear inner wall of the rectangular box (9); the end of the coil spring (203) is fixedly connected to the top of the fixing block (202); the second ratchet (204) is fixedly mounted on the front end of the second round rod (2); the outer sides of the first disc (103) and the second disc (201) are both provided with an annular groove (11); the inner side of the annular groove (11) is provided with a semicircular arc surface; a rubber ring is embedded in the inner side of the semicircular arc surface; the outer sides of the first disc (103) and the second disc (201) can be in contact with welding wire.

2. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 1 is characterized in that: The front side of the first disc (103) is fixedly connected to a support block (107), a first spring (108) is fixedly connected between the bottom of the support block (107) and the first pawl (106), a gear (109) is fixedly sleeved on the outside of the rotating rod (104), the front side of the L-shaped plate (101) is fixedly connected to a motor (110), an output end of the motor (110) is fixedly connected to a vertical rod (111), the front side of the vertical rod (111) is rotatably connected to a connecting rod (112) via a pin shaft, the top end of the connecting rod (112) is rotatably connected to a vertical plate (113), a toothed plate (114) is fixedly connected to the left side of the vertical plate (113), and the gear (109) is meshed with the toothed plate (114).

3. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 2 is characterized in that: A rectangular groove (115) is provided on the right side of the vertical plate (113); a first positioning rod (116) is fixedly connected between the top inner wall and the bottom inner wall of the rectangular groove (115); an L-shaped rod (117) is fixedly connected to the top of the wedge-shaped plate (1); a rectangular block (118) is fixedly connected to the left side of the L-shaped rod (117); and the rectangular block (118) is slidably sleeved on the outside of the first positioning rod (116).

4. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 3 is characterized in that: A rectangular seat (205) is provided on the right side of the second ratchet (204); a second pawl (206) is rotatably connected to the left side of the rectangular seat (205); an end of the second pawl (206) extends to the inner side of the second ratchet (204) to clamp the second ratchet (204); a transverse block (207) is fixedly connected to the left side of the rectangular seat (205); and a second spring (208) is fixedly connected between the bottom of the transverse block (207) and the top of the second pawl (206).

5. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 4, characterized in that: A pushing mechanism is provided at the front side of the rectangular box (9), the pushing mechanism comprising a T-shaped rod (3), a second positioning rod (301) and a squeezing roller (303); the T-shaped rod (3) is movably in contact with the front side of the rectangular box (9); two second positioning rods (301) are fixedly mounted on the rear side of the T-shaped rod (3); the rectangular box (9) is slidably sleeved on the outside of the two second positioning rods (301); the rear ends of the two second positioning rods (301) are fixedly connected to a U-shaped seat (302); the squeezing rollers (303) are rotatably mounted on the inside of two sides of the U-shaped seat (302). The squeezing roller (303) cooperates with the inclined surface of the wedge plate (1), and the squeezing roller (303) can roll on the inclined surface of the wedge plate (1) and generate squeezing force, so that the wedge plate (1) can move upward under the action of the squeezing force. Two third springs (304) in a stretched state are fixedly connected between the front side of the U-shaped seat (302) and the front inner wall of the rectangular box (9). The third springs (304) are movably sleeved on the outer side of the corresponding second positioning rod (301). An observation hole (305) is opened on the front inner wall of the rectangular box (9).

6. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 5, characterized in that: Two third positioning rods (306) are fixedly connected to the rear side of the T-shaped rod (3), and the rear end of the third positioning rod (306) passes through the observation hole (305) and is fixedly connected to the front side of the rectangular seat (205). An L-shaped block (307) is fixedly connected to the inner wall of the front side of the rectangular box (9), and the L-shaped block (307) is slidably sleeved on the outside of the two third positioning rods (306). Two cylinders (308) are fixedly connected to the inner wall of the bottom of the rectangular box (9). Two positioning columns (309) are fixedly connected to the bottom of the wedge-shaped plate (1), and the cylinders (308) are slidably sleeved on the outside of the corresponding positioning columns (309). A fourth spring (310) in a stretched state is fixedly connected between the top of the cylinder (308) and the bottom of the wedge-shaped plate (1), and the fourth spring (310) is movably sleeved on the outside of the positioning column (309).

7. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 6, characterized in that: A switch (5) is fixedly connected to the inner wall of the rear side of the rectangular box (9); the top of the wedge plate (1) is in contact with the switch (5); the switch (5) is in an on state; the top of the wedge plate (1) is fixedly connected to a battery (6); two arc blocks (7) are fixedly connected to the left and right sides of the rectangular box (9); the welding wire passes between the two arc blocks (7); and a grip block (8) is fixedly connected to the left side of the rectangular box (9).

8. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 7, characterized in that: A support and limiting mechanism is provided at the bottom of the rectangular box (9), the support and limiting mechanism comprising a semicircular ring block (4), a first semicircular ring groove (401) and a second semicircular ring groove (402); the semicircular ring block (4) is movably sleeved on the outer side of a water-cooled wall tube body (10) below; the two semicircular ring blocks (4) are in contact with each other to form a circular ring block; the first semicircular ring groove (401) is opened at the top of the corresponding semicircular ring block (4); the two first semicircular ring grooves (401) form a circular ring groove; the second semicircular ring grooves (402) are opened at the outer side of the corresponding semicircular ring block (4); the two second semicircular ring grooves (402) form a circular ring groove; the bottom of the semicircular ring block (4) is fixedly connected with a connecting block (403); the two connecting blocks (403) are threadedly connected by bolts (404).

9. The welding wire clamping and feeding assembly for water-cooled wall pipe welding according to claim 8, characterized in that: The bottom of the rectangular box (9) is fixedly connected to a vertical column (405), the end of the vertical column (405) extends into the corresponding first semicircular annular groove (401) and is embedded with a first ball (406), the outer side of the vertical column (405) is slidably connected to the side wall of the first semicircular annular groove (401), and the first ball (406) is in rolling contact with the bottom inner wall of the first semicircular annular groove (401), the bottom of the rectangular box (9) is fixedly connected to a fixing rod (407), the right side of the fixing rod (407) is fixedly connected to a horizontal column (408), the end of the horizontal column (408) extends into the second semicircular annular groove (402) and is embedded with a second ball (409), the outer side of the horizontal column (408) is slidably connected to the top inner wall and the bottom inner wall of the second semicircular annular groove (402), and the second ball (409) is in rolling contact with the inner side wall of the second semicircular annular groove (402).

10. A welding wire clamping and feeding method for water-cooled wall pipe welding, characterized in that: The welding wire clamping and feeding assembly for water-cooled wall pipe welding as claimed in claim 9 is used, wherein the steps are: Step 1: The motor (110) continuously works to drive the welding wire to be fed automatically and stably at intervals, and the length can be controlled to prevent the wire from being too long and causing the wire to be unripe. At the same time, the motor (110) continuously works to drive the coil spring (203) to rotate and compress and store force; Step 2: The worker holds the gripping block (8) with one hand and presses the T-shaped rod (3) to drive the rectangular box (9) to rotate, and the rectangular box (9) drives the welding wire to rotate around the center of the water-cooled wall tube body (10); Step 3: After welding is completed, the pressing force on the T-shaped rod (3) is released, and the coil spring (203) drives the second disc (201) to rotate rapidly in the forward direction through the second round rod (2). The second disc (201) rapidly rotates in the forward direction and drives the welding wire to move to the left through the rubber ring embedded inside the second disc (201), so that the welding wire can be quickly retracted out of the molten pool, thereby avoiding the formation of a lump at the end of the welding wire. Step 4: Reversely rotate the bolt (404) to separate it from the corresponding connecting block (403), and then the semicircular ring block (4) can be removed from the water-cooled wall tube body (10) below.

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