Welding device for boiler soot blower nozzle

Abstract

The invention relates to the technical field of soot blower production, in particular to a boiler soot blower nozzle welding device which comprises a welding table, a pair of upper supports fixedly connected to the top end of the welding table, a storage frame fixedly connected between the upper supports and used for storing the connecting end of a nozzle, and a lower support fixedly connected to the top end of the welding table. Through the arrangement of the storage frame, the round rod, the material pushing mechanism, the feeding mechanism and other structures, it is only needed to place the connecting end of the spray head into the storage frame, then the spray head is inserted into the round rod, and then the spray head can be placed on the round rod under the operation of the material pushing mechanism and the feeding mechanism; automatic butt joint of the nozzle and the nozzle connecting end is achieved, then the nozzle connecting end is automatically welded through the automatic welding mechanism, meanwhile, the nozzle is driven by the rotating motor to rotate, automatic butt joint welding of the nozzle is achieved, manual clamping is not needed, and the convenient performance of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the production technology field of soot blowers, and particularly relates to a welding device for a soot blower nozzle of a boiler. BACKGROUND

[0002] A soot blower is an important device for removing internal ash of a boiler to ensure efficient operation and prolong the service life of the boiler. The performance of the soot blower nozzle, as a key component of the soot blower, directly affects the soot blowing effect. The nozzle is usually made of high-strength alloy material and has the characteristics of high temperature resistance, high pressure resistance and wear resistance. The structural design of the nozzle includes a threaded connection end and a jet end. The threaded connection end is used for connecting with the soot blower pipeline, and the jet end is responsible for jetting high-pressure gas flow to remove ash.

[0003] The welding process of a modern boiler soot blower nozzle increasingly uses automatic or semi-automatic equipment, such as robot welding and laser welding. These devices can accurately control welding parameters, reduce the influence of human factors, improve the consistency and reliability of welding, and significantly improve production efficiency, reduce labor intensity and improve the working environment.

[0004] However, the existing boiler soot blower nozzle has some defects in the assembly and welding process. Workers need to clamp the threaded connection end and the jet end on the tooling respectively for alignment and welding. This process is not only time-consuming and labor-intensive, but also requires workers to frequently take and place workpieces, resulting in low welding efficiency. In addition, frequent manual operation may also lead to unstable welding quality, affecting the service life and safety of the nozzle.

[0005] Therefore, a welding device for a boiler soot blower nozzle is proposed to solve the above problems. SUMMARY

[0006] The purpose of the present application is to solve the shortcomings in the background art and propose a welding device for a boiler soot blower nozzle.

[0007] In order to achieve the above object, the technical scheme adopted by the present application is as follows: a welding device for a boiler soot blower nozzle, comprising a welding table, the top end of the welding table is fixedly connected with a pair of upper supports, a storage frame for storing the nozzle connecting end is fixedly connected between the upper supports, the top end of the welding table is fixedly connected with a lower support, an L-shaped fixing plate is fixedly connected on the lower support, a round rod matched with the nozzle nozzle hole is arranged on the front side of the fixing plate, the top end of the welding table is fixedly connected with a side support plate, a rotary motor is fixedly connected on the side wall of the side support plate, the output end of the rotary motor is fixedly connected with a U-shaped pipe penetrating through the side wall of the side support plate, the U-shaped pipe is arranged below the round rod away from the side support plate, a pushing mechanism for pushing the nozzle connecting end for butt joint is arranged below the storage frame, a feeding mechanism for feeding first and then moving the round rod upward is arranged on the fixing plate, a pair of automatic welding mechanisms are arranged on the top end of the welding table, and the welding end of the automatic welding mechanism is arranged at the position beside the welding point of the nozzle butt joint.

[0008] In the above technical scheme, further, an arc-shaped plate for limiting the position of the nozzle is fixedly connected on the outer wall of the U-shaped pipe, a side groove is formed in the outer wall of the U-shaped pipe, a fixing mechanism for fixing the position of the nozzle is arranged in the side groove, a discharging groove is formed in the top end of the welding table relative to the position below the U-shaped pipe, the bottom end of the discharging groove is arranged in an inclined manner, and a connecting block for being inserted into the U-shaped pipe is fixedly connected on the bottom end of the round rod.

[0009] In the above technical scheme, further, the pushing mechanism comprises an upper electric telescopic cylinder, a U-shaped plate is fixedly connected between the side walls of the upper supports, the upper electric telescopic cylinder is fixedly connected on the side wall of the U-shaped plate, a limiting frame for limiting the position of the nozzle connecting end is fixedly connected between the upper supports relative to the position below the storage frame, an L-shaped plate is fixedly connected on the output end of the upper electric telescopic cylinder penetrating through the side wall of the U-shaped plate, a conical block for being inserted into the inner side of the nozzle connecting end is rotatably connected on the side wall of the L-shaped plate, and a pair of bottom blocks are fixedly connected on the side wall of the L-shaped plate relative to the outer side position of the nozzle connecting end.

[0010] In the above technical scheme, further, the feeding mechanism comprises a lower electric telescopic cylinder, a sliding frame is longitudinally and slidingly connected on the front side of the fixing plate, an upper plate is fixedly connected on the front side of the fixing plate relative to the position above the sliding frame, the lower electric telescopic cylinder is fixedly connected on the top end of the upper plate, an L-shaped block with an inclined surface is fixedly connected on the output end of the lower electric telescopic cylinder penetrating through the bottom end of the upper plate, a top block is fixedly connected on the front side of the sliding frame relative to the position above the L-shaped block, an upper rod and a lower rod are respectively slidingly connected through the side walls of the sliding frame, a circular groove is formed in the outer wall of the round rod relative to the positions beside the upper rod and the lower rod, an inserting ring for being inserted into the circular groove is fixedly connected on the side walls of the upper rod and the lower rod, a limiting mechanism for limiting the position of the round rod is arranged on the fixing plate, a straight groove is formed in the front side of the sliding frame, a side rod is fixedly connected on the side wall of the lower rod, and a side block is fixedly connected on the side wall of the fixing plate.

[0011] In the above technical scheme, further, the side wall of the side block is provided with a recessed groove, and the bottom end of the groove is inclinedly arranged, the side end of the upper rod is inclinedly arranged, the inclination angle of the inclined surface of the upper rod is the same as that of the inclined surface of the groove, the side rod is slidingly connected to the inner side of the straight groove, and the side end of the insertion ring on the upper rod is inclinedly arranged.

[0012] In the above technical scheme, further, the side plate is fixedly connected to the side, away from the upper rod and the lower rod, of the sliding frame, the reset spring is fixedly connected between the side plate and the inner side of the sliding frame, and the identification groove is formed in the outer wall of the round rod.

[0013] In the above technical scheme, further, the limiting mechanism comprises a limiting plate, a top groove is formed in the top end of the fixed plate, the limiting plate is inserted into the top groove, vertical grooves are formed in both ends of the inner side of the top groove, the insertion rod for being inserted into the vertical groove is fixedly connected to both sides of the outer wall of the limiting plate, the rear plate is fixedly connected to the position beside the top groove on the rear side of the fixed plate, the bolt is threadedly connected through the side wall of the rear plate, the bottom end of the bolt abuts against the top end of the limiting plate, the round hole is formed through the top end of the limiting plate, and the round rod is inserted into the inner side of the round hole.

[0014] In the above technical scheme, further, the fixing mechanism comprises a fixed electric telescopic cylinder, a notch is formed in the bottom end of the U-shaped pipe, the fixed electric telescopic cylinder is fixedly connected to the notch, a pair of guide plates is fixedly connected to the inner side of the side groove, the fixed strip is slidingly connected transversely between the guide plates, the fixed strip is inclinedly arranged on both sides thereof, the horizontal plate is fixedly connected to the side wall of the fixed strip, the inclined groove is formed through the side wall of the horizontal plate, the push rod is inserted into the inner side of the inclined groove, the push strip is fixedly connected to the side wall of the push rod, and the output end of the fixed electric telescopic cylinder is fixedly connected to the bottom end of the push strip.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1、The present application is provided with a storage frame, a round rod, a pushing mechanism and a feeding mechanism, etc., only the connecting end of the nozzle is put into the storage frame, then the nozzle is inserted into the round rod, and then the automatic butt joint of the nozzle and the connecting end of the nozzle is realized under the operation of the pushing mechanism and the feeding mechanism, at the same time, the nozzle is rotated by the rotary motor, the automatic butt joint welding of the nozzle is realized, and the workers are not needed to clamp, which greatly improves the convenience of the device.

[0016] 2、The present application is provided with rotating motor, fixing mechanism and other structures, can drive U-shaped tube to rotate through rotating motor after the completion of the welding of the spray head, so that the end of the U-shaped tube faces downward, then drive the fixing mechanism to remove the limit with the spray head, so that the spray head can fall under its own gravity, and then discharge from the discharge chute, so as to realize the automatic discharging of the device, further improve the convenient performance of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front perspective structure schematic view of the welding device of the present application; Figure 2 It is a front perspective structure schematic view of the welding device of the present application; Figure 1 It is a front perspective structure schematic view of the welding device of the present application; Figure 3 It is a front perspective structure schematic view of the welding device of the present application; Figure 1 It is a front perspective structure schematic view of the welding device of the present application; Figure 4 It is a front perspective structure schematic view of the welding device of the present application; Figure 5 It is a front perspective structure schematic view of the welding device of the present application; Figure 6 It is a front perspective structure schematic view of the welding device of the present application; Figure 7 It is a front perspective structure schematic view of the welding device of the present application; Figure 8 It is a front perspective structure schematic view of the welding device of the present application; Figure 9 It is a front perspective structure schematic view of the welding device of the present application; Figure 10 It is a front perspective structure schematic view of the welding device of the present application; Figure 11 It is a front perspective structure schematic view of the welding device of the present application;

[0018] In the figure: 1, welding table; 2, upper support; 3, storage frame; 4, lower support; 5, fixed plate; 6, round rod; 7, side support plate; 8, rotary motor; 9, U-shaped tube; 10, automatic welding mechanism; 11, arc-shaped plate; 12, side groove; 13, discharge groove; 14, upper electric telescopic cylinder; 15, U-shaped plate; 16, limiting frame; 17, L-shaped plate; 18, conical block; 19, bottom block; 20, lower electric telescopic cylinder; 21, sliding frame; 22, upper plate; 23, right-angle block; 24, top block; 25, upper rod; 26, lower rod; 27, circular ring groove; 28, insertion ring; 29, side rod; 30, side block; 31, groove; 32, side plate; 33, reset spring; 34, rear plate; 35, bolt; 36, limiting plate; 37, vertical groove; 38, insertion rod; 39, fixed electric telescopic cylinder; 40, guide plate; 41, fixed bar; 42, cross plate; 43, inclined groove; 44, push rod; 45, push bar; 46, identification groove; 47, connecting block. DETAILED DESCRIPTION

[0019] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present application, the present application will be further described below in conjunction with the drawings and specific embodiments.

[0020] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, however, the present application can be practiced in other manners different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed below.

[0021] In actual use, it is found that the existing boiler soot blower nozzle has some defects in the assembly and welding process. Workers need to clamp the threaded connection end and the air injection end on the tool respectively for alignment and welding. This process not only takes time and effort, but also requires workers to frequently take and place workpieces, resulting in low welding efficiency. In addition, frequent manual operation may also cause unstable welding quality, affecting the service life and safety of the nozzle. To solve the above problems, the following structure is invented.

[0022] As Figures 1-11The welding device of the boiler soot blower nozzle shown comprises a welding table 1, a pair of upper supports 2 fixedly connected to the top end of the welding table 1, a storage frame 3 for storing the nozzle connecting end fixedly connected between the upper supports 2, a lower support 4 fixedly connected to the top end of the welding table 1, an L-shaped fixed plate 5 fixedly connected to the lower support 4, a round rod 6 provided on the front side of the fixed plate 5 and matched with the nozzle orifice, a side support plate 7 fixedly connected to the top end of the welding table 1, a rotary motor 8 fixedly connected to the side wall of the side support plate 7, a U-shaped pipe 9 fixedly connected to the output end of the rotary motor 8 and passing through the side wall of the side support plate 7, wherein the U-shaped pipe 9 is arranged below the round rod 6 away from the side support plate 7, a pushing mechanism arranged below the storage frame 3 and used for pushing the nozzle connecting end for butt joint, a feeding mechanism arranged on the fixed plate 5 and used for feeding first and then moving the round rod 6 upward, and a pair of automatic welding mechanisms 10 arranged at the top end of the welding table 1 and at the position beside the welding point of the nozzle butt joint. The automatic welding mechanism 10 of the boiler soot blower nozzle integrates an intelligent welding system, mainly by being equipped with two flexible welding mechanical arms on the welding table 1, which are driven by an intelligent control system, can automatically stretch and retract and accurately position to the nozzle butt joint, and the intelligent welding system can monitor the welding position and progress in real time through a sensor, automatically adjust the welding parameters such as current, voltage and welding speed, and ensure the welding quality. It is a mature technology in the prior art, and will not be described in detail here.

[0023] An arc-shaped plate 11 for limiting the position of the nozzle is fixedly connected to the outer wall of the U-shaped pipe 9. The position of the nozzle on the U-shaped pipe 9 can be limited through the arc-shaped plate 11. A side groove 12 is formed in the outer wall of the U-shaped pipe 9, and a fixing mechanism for fixing the position of the nozzle is arranged in the side groove 12. A connecting block 47 is fixedly connected to the bottom end of the round rod 6 and inserted into the U-shaped pipe 9.

[0024] The pushing mechanism comprises an upper electric telescopic cylinder 14, a U-shaped plate 15 fixedly connected between the side walls of the upper supports 2, the upper electric telescopic cylinder 14 being fixedly connected to the side wall of the U-shaped plate 15, a limiting frame 16 fixedly connected between the upper supports 2 relative to the position below the storage frame 3 and used for limiting the position of the nozzle connecting end, an L-shaped plate 17 fixedly connected to the output end of the upper electric telescopic cylinder 14 and passing through the side wall of the U-shaped plate 15, a conical block 18 rotatably connected to the side wall of the L-shaped plate 17 and inserted into the inner side of the nozzle connecting end, a pair of bottom blocks 19 fixedly connected to the side wall of the L-shaped plate 17 relative to the outer side of the nozzle connecting end, the bottom blocks 19 can limit the position of the nozzle connecting end, ensure that the nozzle will not fall off when sliding out of the limiting frame 16, and ensure the stability in the subsequent butt joint process. It should be noted that there is a gap between the bottom blocks 19 and the arc-shaped plate 11, otherwise it will hinder the normal welding of the automatic welding mechanism 10. Through the setting of the pushing mechanism, the nozzle connecting end stored in the storage frame 3 can be quickly pushed out, and the nozzle can be automatically butt jointed.

[0025] The feeding mechanism comprises a lower electric telescopic cylinder 20, a sliding frame 21 is slidably connected to the front side of the fixed plate 5 in the longitudinal direction, an upper plate 22 is fixedly connected to the upper position of the front side of the fixed plate 5 relative to the sliding frame 21, the lower electric telescopic cylinder 20 is fixedly connected to the top end of the upper plate 22, the output end of the lower electric telescopic cylinder 20 is fixedly connected with a right-angle block 23 with an inclined surface through the bottom end of the upper plate 22, a top block 24 is fixedly connected to the upper position of the front side of the sliding frame 21 relative to the right-angle block 23, an upper rod 25 and a lower rod 26 are slidably connected through the side walls of the sliding frame 21 respectively, a circular groove 27 is formed in the outer wall of the circular rod 6 at the side position relative to the upper rod 25 and the lower rod 26, an insertion ring 28 (it should be noted that the insertion ring 28 is an electromagnet, and the circular rod 6 is made of iron material, since the nozzle is usually made of heat-resistant stainless steel or other high-temperature alloy materials, these materials generally do not contain ferromagnetic elements, so they will not be attracted by the magnet, and when the upper rod 25 or the lower rod 26 is moved away from the circular rod 6, the corresponding electromagnet will be automatically powered off, and when the insertion ring 28 is inserted into the circular groove 27, the controller will control the corresponding electromagnet to be automatically powered on, so that the supporting effect of the circular rod 6 can be further improved when the insertion ring 28 is in contact with the circular rod 6) is fixedly connected to the side walls of the upper rod 25 and the lower rod 26, a limiting mechanism for limiting the position of the circular rod 6 is arranged on the fixed plate 5, a straight groove is formed in the front side of the sliding frame 21, a side rod 29 is fixedly connected to the side wall of the lower rod 26, and a side block 30 is fixedly connected to the side wall of the fixed plate 5; A recessed groove 31 is formed in the side wall of the side block 30, and the bottom end of the recessed groove 31 is inclinedly arranged, the side end of the upper rod 25 is inclinedly arranged, the inclination angle of the inclined surface of the upper rod 25 is the same as that of the inclined surface of the recessed groove 31, the side rod 29 is slidably connected to the inner side of the straight groove, and the side end of the insertion ring 28 located on the upper rod 25 is inclinedly arranged; The side away from the upper rod 25 and the lower rod 26 is fixedly connected with a side plate 32, and the side plate 32 and the side wall of the sliding frame 21 are fixedly connected with a reset spring 33, so that the upper rod 25 and the lower rod 26 can be quickly pushed and reset, an identification groove 46 is formed in the outer wall of the circular rod 6, and the highest position of the nozzle placed on the circular rod 6 can be identified through the identification groove 46, so as to avoid exceeding the highest position of placement and affecting the separation of the circular rod 6 and the U-shaped tube 9, thereby affecting the normal operation of the device.

[0026] The limiting mechanism comprises a limiting plate 36, the top end of the fixed plate 5 is provided with a top groove, the limiting plate 36 is inserted into the top groove, the inner side of the top groove is provided with a vertical groove 37 at both ends, the outer wall of the limiting plate 36 is fixedly connected with a plug rod 38 for being inserted into the vertical groove 37 at both sides, the rear side of the fixed plate 5 is fixedly connected with a rear plate 34 beside the top groove, the side wall of the rear plate 34 is penetrated and threadedly connected with a bolt 35, the bottom end of the bolt 35 abuts against the top end of the limiting plate 36, the top end of the limiting plate 36 is penetrated and provided with a circular hole, the circular rod 6 is inserted into the inner side of the circular hole, the bolt 35 abuts against the top end of the limiting plate 36, so that the upward movement of the limiting plate 36 is limited, thereby ensuring the stable support of the circular rod 6.

[0027] When the nozzle of the boiler soot blower is welded, first, the bolt 35 is reversely rotated, the bolt 35 is moved outward in a spiral manner, the bolt 35 is moved out of the limiting plate 36, the limiting of the limiting plate 36 is released, the limiting plate 36 can be moved upward, at the same time, the plug rod 38 is slid in the vertical groove 37, then when the limiting plate 36 is moved out of the top end of the circular rod 6, the limiting plate 36 can be reversely turned (since the bottom end of the circular rod 6 is inserted into the U-shaped pipe 9 through the connecting block 47 and is limited, the circular rod 6 will not be tilted), then the nozzle with the air injection hole is inserted into the circular rod 6, it should be noted that the opening of the nozzle is inserted towards the storage frame 3 (it should be noted that the outer wall of the inserted nozzle will be in contact with the side wall of the fixed plate 5, at this time, the fixed plate 5 will limit the position of the outer wall of the nozzle, so as to ensure that the inserted nozzle will not be rotated randomly, thereby affecting the stability in the subsequent butt joint process), then the above operation is repeated in reverse, the limiting plate 36 is installed back, the sliding position of the top end of the circular rod 6 is limited, then the threaded connection end of the nozzle is sequentially put into the storage frame 3; Then the electric telescopic cylinder 20 is controlled to start, the right angle block 23 is driven to move upward, the top block 24 is driven to move upward together with the sliding frame 21, at this time, the plug ring 28 on the upper rod 25 and the lower rod 26 is inserted and adsorbed in the circular ring groove 27, so the circular rod 6 is driven to move upward together, and the connecting block 47 is pulled out of the U-shaped pipe 9, then when the side end of the upper rod 25 moves to the position beside the groove 31, the extrusion of the upper rod 25 is released, the side plate 32 and the upper rod 25 are pulled to move under the elastic force of the reset spring 33, so that the side end of the upper rod 25 is gradually inserted into the groove 31, at the same time, the plug ring 28 on the upper rod 25 is moved out of the circular ring groove 27 (when the nozzle is inserted into the circular rod 6, the lowermost nozzle will fall on the upper rod 25); Further, the position of the nozzle on the circular rod 6 is released, and the nozzle moves downward under its own gravity, falls on the lower rod 26, and then the lower electric telescopic cylinder 20 is controlled to move downward, and the circular rod 6 and the sliding frame 21 follow the downward movement under their own gravity, and then gradually extrude the inclined surface at the end of the upper rod 25 under the action of the inclined surface of the groove 31, so that the upper rod 25 and the insertion ring 28 gradually insert between the nozzles on the circular rod 6 (the side end of the insertion ring 28 on the upper rod 25 is an inclined surface, which will extrude the circular arc surface of the nozzle when the insertion ring 28 is inserted, so that the nozzle moves upward and separates from the lower nozzle), and then the insertion ring 28 is inserted into the upper circular groove 27, and then when the right-angle block 23 is reset, the sliding frame 21 moves to the lowermost position, at this time the connecting block 47 is inserted into the U-shaped tube 9, and then the lower electric telescopic cylinder 20 continues to drive the right-angle block 23 to move downward, and then the side rod 29 slides in the straight groove by the extrusion of the inclined surface of the right-angle block 23, and the lower rod 26 slides and the corresponding side plate 32 moves, and the reset spring 33 is gradually compressed; Thus, the insertion ring 28 beside the lower rod 26 is pulled out from the lower circular groove 27, and the limit on the just-fallen nozzle is released, and then the nozzle falls to the top end of the arc-shaped plate 11 of the U-shaped tube 9 under its own gravity (it should be noted that there is no limit on the nozzle beside the U-shaped tube 9, because it will hinder the subsequent rotation welding of the nozzle, but during the falling process, the nozzle will fall onto the arc-shaped plate 11, and since the arc-shaped plate 11 is in close contact with the outer wall of the nozzle, the nozzle will be completely engaged in the arc-shaped plate 11 under its own gravity, ensuring accurate docking in the subsequent process), and then the lower electric telescopic cylinder 20 can be controlled to move upward to repeat the above operation, and the connecting block 47 is pulled out of the U-shaped tube 9, and the circular rod 6 is separated from the U-shaped tube 9, at this time the circular rod 6 will slide in the circular hole on the limiting plate 36 (at this time the stored nozzles will continue to be sent to the position between the upper rod 25 and the lower rod 26); Then the fixed mechanism is controlled to further limit the position of the nozzle on the U-shaped tube 9, and then the upper electric telescopic cylinder 14 is controlled to start and drive the L-shaped plate 17 to slide (before this, when the nozzle connecting end is placed, the lowermost nozzle connecting end will fall into the limiting frame 16, and at this time the bottom block 19 is located in the limiting frame 16, so that the nozzle is also between the bottom blocks 19), so that the conical block 18 is inserted into the nozzle connecting end in the limiting frame 16, and then the nozzle connecting end is pushed to move toward the nozzle end, so that the nozzle connecting end is gradually moved out of the limiting frame 16 (at this time the L-shaped plate 17 will move to the lower side of the storage frame 3, limiting the falling of the remaining nozzle connecting ends in the storage frame 3), and the bottom block 19 moves to the side of the nozzle, and with the continuous extrusion of the upper electric telescopic cylinder 14, the inclined surface of the conical block 18 is tightly inserted into the inner side of the nozzle connecting end, and the nozzle connecting end and the nozzle are tightly extruded together; Subsequently, the automatic welding mechanism 10 can be controlled to weld the nozzle connecting end, and after the welding on both sides is completed, the rotating motor 8 is controlled to drive the U-shaped pipe 9 to rotate. Since the nozzle and the nozzle connecting end have been spot welded, the U-shaped pipe 9 drives the nozzle to rotate, which drives the nozzle connecting end and the conical block 18 to rotate on the side wall of the L-shaped plate 17, thereby completing the overall welding of the nozzle by the automatic welding mechanism 10 (it should be noted that during the automatic welding and blanking process, the limiting plate 36 can be opened to place the nozzle on the circular rod 6 for feeding).

[0028] In summary, by the above structure, only the nozzle connecting end needs to be placed in the storage frame 3, and then the nozzle is inserted on the circular rod 6. Subsequently, under the operation of the pushing mechanism and the feeding mechanism, the automatic butt joint of the nozzle and the nozzle connecting end is realized, and then the automatic welding mechanism 10 is used to automatically weld the nozzle connecting end. At the same time, the rotating motor 8 drives the nozzle to rotate to realize the automatic butt joint welding of the nozzle, without the need for workers to clamp.

[0029] Based on the above embodiment, it is found that the above structure can realize the automatic butt joint welding of the nozzle, but after the welding is completed, the worker needs to take out the nozzle from the U-shaped pipe 9, which is relatively troublesome. To solve the above problem, the above structure is further improved.

[0030] The welding table 1 is provided with a discharge chute 13 at the top end relative to the position below the U-shaped pipe 9, and the bottom end of the discharge chute 13 is inclined. Through the arrangement of the discharge chute 13, the dropped nozzle can be quickly discharged.

[0031] The fixing mechanism includes a fixed electric telescopic cylinder 39, and the bottom end of the U-shaped pipe 9 is provided with a notch. The fixed electric telescopic cylinder 39 is fixedly connected at the notch. A pair of guide plates 40 is fixedly connected inside the side groove 12. A fixed strip 41 is transversely and slidably connected between the guide plates 40. The fixed strip 41 is inclined on the upper side and the lower side. A horizontal plate 42 is fixedly connected to the side wall of the fixed strip 41. An inclined groove 43 is formed through the side wall of the horizontal plate 42. A push rod 44 is inserted into the inclined groove 43. A push strip 45 is fixedly connected to the side wall of the push rod 44. The output end of the fixed electric telescopic cylinder 39 is fixedly connected to the bottom end of the push strip 45. Through the fixing mechanism, the position of the nozzle on the U-shaped pipe 9 can be further limited, thereby further improving the butt joint effect and improving the welding quality of the nozzle.

[0032] When the automatic butt welding of the spray head is completed, the upper electric telescopic cylinder 14 is controlled to reset, and the bottom block 19 is pulled out from the bottom end of the spray head connection end. Since the welding points of the automatic welding mechanism 10 are two, the U-shaped tube 9 is rotated 180 degrees by the rotating motor 8 to complete the overall welding of the spray head. After the overall welding is completed, the end of the U-shaped tube 9 is in a downward state, and then the fixed electric telescopic cylinder 39 is controlled to move downward, and the push bar 45 and the push rod 44 are moved downward. Since the horizontal plate 42 and the fixed bar 41 can only slide horizontally between the guide plates 40, and the push rod 44 is inserted into the inclined groove 43, the horizontal plate 42 is squeezed to move horizontally under the downward extrusion of the push rod 44, so that the fixed bar 41 is retracted from the inside of the spray head and moves into the U-shaped tube 9, thereby releasing the clamping of the spray head. The spray head falls into the discharge chute 13 under its own gravity, realizing the rapid discharge of the spray head. Then the rotating motor 8 is controlled to start and drive the U-shaped tube 9 to reverse and reset, and the above operation can be repeated for automatic welding (it should be noted that when the spray head is clamped by the fixed mechanism, the fixed electric telescopic cylinder 39 is controlled to start and drive the push bar 45 and the push rod 44 to move upward, and the above operation is reversed to repeat).

[0033] In summary, through the design of the above structure, after the welding of the spray head is completed, the U-shaped tube 9 is rotated by the rotating motor 8, so that the end of the U-shaped tube 9 is downward, and then the fixed mechanism is driven to release the limitation of the spray head. The spray head can fall under its own gravity and be discharged from the discharge chute 13, thereby realizing the automatic discharge of the device and further improving the convenience of the device.

[0034] The above shows and describes the basic principles, main features and advantages of the present application.

[0035] Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A welding device for a boiler sootblower nozzle, comprising a welding table (1), characterized in that: The welding table (1) is fixedly connected to a pair of upper supports (2) at its top. A storage frame (3) for storing the nozzle connection end is fixedly connected between the upper supports (2). The welding table (1) is fixedly connected to a lower support (4). An L-shaped fixing plate (5) is fixedly connected to the lower support (4). A round rod (6) adapted to the nozzle nozzle orifice is provided on the front side of the fixing plate (5). The welding table (1) is fixedly connected to a side support plate (7). A rotary motor (8) is fixedly connected to the side wall of the side support plate (7). (8) The output end of the U-shaped tube (9) is fixedly connected to the side wall of the side support plate (7), and the end of the U-shaped tube (9) away from the side support plate (7) is located below the round rod (6). The storage frame (3) is provided with a material pushing mechanism for pushing the nozzle connection end to dock. The fixed plate (5) is provided with a material feeding mechanism for feeding material first and then moving the round rod (6) upward. The welding table (1) is provided with a pair of automatic welding mechanisms (10) at the top, and the welding end of the automatic welding mechanism (10) is located next to the welding point at the nozzle docking point.

2. The welding device for a boiler sootblower nozzle according to claim 1, characterized in that: The outer wall of the U-shaped tube (9) is fixedly connected to an arc plate (11) for limiting the position of the nozzle. The outer wall of the U-shaped tube (9) is provided with a side groove (12). The side groove (12) is provided with a fixing mechanism for fixing the position of the nozzle. The top of the welding table (1) is provided with a discharge groove (13) relative to the position below the U-shaped tube (9). The bottom end of the discharge groove (13) is inclined. The bottom end of the round rod (6) is fixedly connected to a connecting block (47) for inserting into the U-shaped tube (9).

3. The welding device for a boiler sootblower nozzle according to claim 1, characterized in that: The feeding mechanism includes an upper electric telescopic cylinder (14), a U-shaped plate (15) is fixedly connected between the side walls of the upper bracket (2), the upper electric telescopic cylinder (14) is fixedly connected to the side wall of the U-shaped plate (15), a limiting frame (16) for limiting the position of the nozzle connection end is fixedly connected between the upper brackets (2) relative to the position below the storage frame (3), the output end of the upper electric telescopic cylinder (14) is fixedly connected to an L-shaped plate (17) through the side wall of the U-shaped plate (15), a conical block (18) for inserting into the inner side of the nozzle connection end is rotatably connected to the side wall of the L-shaped plate (17), and a pair of bottom blocks (19) are fixedly connected to the side wall of the L-shaped plate (17) relative to the outer side of the nozzle connection end.

4. The welding device for a boiler sootblower nozzle according to claim 1, characterized in that: The feeding mechanism includes a lower electric telescopic cylinder (20), a slide frame (21) is longitudinally slidably connected to the front side of the fixed plate (5), an upper plate (22) is fixedly connected to the front side of the fixed plate (5) relative to the upper position of the slide frame (21), the lower electric telescopic cylinder (20) is fixedly connected to the top of the upper plate (22), the output end of the lower electric telescopic cylinder (20) passes through the bottom end of the upper plate (22) and is fixedly connected to a right-angle block (23) with an inclined surface, a top block (24) is fixedly connected to the front side of the slide frame (21) relative to the upper position of the right-angle block (23), and the side wall of the slide frame (21) The upper rod (25) and the lower rod (26) are slidably connected through each other. The outer wall of the round rod (6) is provided with a circular groove (27) at a position relative to the upper rod (25) and the lower rod (26). The side walls of the upper rod (25) and the lower rod (26) are fixedly connected with a ring (28) for inserting into the circular groove (27). The fixing plate (5) is provided with a limiting mechanism for limiting the position of the round rod (6). The front side of the sliding frame (21) is provided with a straight groove. The side wall of the lower rod (26) is fixedly connected with a side rod (29). The side wall of the fixing plate (5) is fixedly connected with a side block (30).

5. The welding device for a boiler sootblower nozzle according to claim 4, characterized in that: The side block (30) has a recessed groove (31) on its side wall, and the bottom end of the groove (31) is inclined. The side end of the upper rod (25) is inclined. The inclined surface of the upper rod (25) has the same inclination angle as the inclined surface of the groove (31). The side rod (29) is slidably connected to the inside of the straight groove. The side end of the insert ring (28) on the upper rod (25) is inclined.

6. The welding device for a boiler sootblower nozzle according to claim 4, characterized in that: The upper rod (25) and the lower rod (26) are both fixedly connected to side plates (32) on the opposite side. The side plates (32) and the inner side of the sliding frame (21) are both fixedly connected to a return spring (33). The outer wall of the round rod (6) is provided with an identification groove (46).

7. The welding device for a boiler sootblower nozzle according to claim 4, characterized in that: The limiting mechanism includes a limiting plate (36), a top groove is provided at the top of the fixing plate (5), the limiting plate (36) is inserted into the top groove, and vertical grooves (37) are provided at both ends of the inner side of the top groove. Insert rods (38) for inserting into the vertical grooves (37) are fixedly connected to both sides of the outer wall of the limiting plate (36). A rear plate (34) is fixedly connected to the rear side of the fixing plate (5) relative to the position next to the top groove. A bolt (35) is threaded through the side wall of the rear plate (34), and the bottom end of the bolt (35) abuts against the top of the limiting plate (36). A round hole is provided through the top of the limiting plate (36), and the round rod (6) is inserted into the inner side of the round hole.

8. The welding device for a boiler sootblower nozzle according to claim 2, characterized in that: The fixing mechanism includes a fixed electric telescopic cylinder (39). The bottom end of the U-shaped tube (9) has a notch. The fixed electric telescopic cylinder (39) is fixedly connected to the notch. A pair of guide plates (40) are fixedly connected to the inside of the side groove (12). A fixing strip (41) is slidably connected between the guide plates (40). The fixing strip (41) is inclined on both the upper and lower sides. A horizontal plate (42) is fixedly connected to the side wall of the fixing strip (41). An inclined groove (43) is opened through the side wall of the horizontal plate (42). A push rod (44) is inserted into the inside of the inclined groove (43). A push bar (45) is fixedly connected to the side wall of the push rod (44). The output end of the fixed electric telescopic cylinder (39) is fixedly connected to the bottom end of the push bar (45).

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