Welding equipment for condenser coil and working method of welding equipment

Abstract

The invention discloses welding equipment for a condenser coil pipe and a working method of the welding equipment, and particularly relates to the technical field of condenser pipeline welding. By arranging a secondary pushing linkage assembly, a pipe fitting is firstly conveyed into a feeding seat at a fixed point through a feeding channel, and an adjusting plate moves upwards to drive a pressing wheel to follow transmission and upwards extrude an abutting and pushing block; when a pushing block slides upwards, a function plate is pushed to horizontally slide in a cavity in the top of a feeding seat, at the moment, a pushing wheel is in contact with a contact block, a pushing block is driven to push a pipe fitting into a V-shaped groove, and a fixing rod on the pushing wheel compresses a torsional spring, so that the pushing wheel faces upwards; the height of the pipe fitting entering the V-shaped groove is adjusted, the adjusting plate slides along the limiting table at the moment through downward movement of the adjusting plate, the adjusting plate slowly moves out of the concave cavity in the inner wall of the feeding base and pushes one end of the pipe fitting, the pipe fitting is smoothly discharged, and automatic pushing of pipe fitting charging and automatic pushing of discharging are achieved through upward movement and downward movement of the adjusting plate.

Description

Technical Field

[0001] The invention relates to the technical field of condenser pipeline welding, in particular to a condenser coil welding device and a working method thereof. Background Art

[0002] The core of coil condenser as a heat exchange equipment lies in efficient heat transfer. It is used in fields such as air conditioning, refrigerators, and chemical industry. The working fluid flows in the pipe and exchanges heat with the external medium (such as air or liquid) to achieve the effect of cooling or heating. The pipe joints are welded in a circular manner using a welding gun, and the welded pipes are bent by bending to form coils.

[0003] After searching, the invention patent with publication number CN118342214A discloses an evaporative condenser coil welding device. By rotating the welding gun, circular welding can be performed on the connection, and the rotation speed of the welding gun can be adjusted where subsequent bending is required. At the same time, automatic and uniform wire feeding can be achieved during the welding process.

[0004] The material in the above scheme is placed directly in the support, fixed and then moved to the welding position. This step needs to be repeated each time the material is loaded, which is cumbersome. In addition, the above scheme adopts a welding method in which a welding gun is combined with a welding wire for rotating welding. Metal oxidation is prone to occur on the weld seam and the inner wall of the pipe, and the welding quality cannot be guaranteed. Summary of the invention

[0005] The object of the present invention is to provide a condenser coil welding device and a working method thereof to solve the problems mentioned in the above background technology.

[0006] The technical problems mainly solved by the present invention are: In the existing solution, the pipe is placed in the support and fixed before being moved to the welding position. This step needs to be repeated every time the material is loaded, which is cumbersome. The welding method adopted is that the welding gun cooperates with the welding wire to rotate, and metal oxidation is easy to occur on the weld and the inner wall of the pipe, and the welding quality cannot be guaranteed.

[0007] The present invention can be achieved through the following technical solutions: A welding device for a condenser coil comprises a feed seat, wherein a V-shaped groove is arranged on the bottom surface of the inner cavity of the feed seat; The feeding seat is arranged at one side of the feeding seat, and the end surface thereof is penetrated by a feeding channel for the pipe fitting to enter; The secondary push linkage assembly is installed on the top of the inner cavity of the feed seat; The adjusting plate is arranged in the inner wall concave cavity of the feeding seat for lifting and sliding, and a limit table is arranged in the concave cavity for sliding cooperation with the inclined surface of the adjusting plate; A pressing wheel is installed on the top surface of the adjusting plate, and an upper end surface of the pressing wheel abuts against a trigger pushing unit; The push block is elastically mounted on the top cavity of the feed seat; The functional plate is movably installed in the cavity at the top of the feed seat, one end of which is in contact with one end of the push block, and the other end is connected with a spring three, one end of which is fixed with the cavity at the top of the feed seat, and a vacant part is provided near the bottom of the spring three, in which a push wheel is rotatably connected through a torsion spring; The rotating groove is arranged on the top of the feeding seat and communicated with the cavity, and a contact block is rotatably installed inside the rotating groove, the end of the push wheel abuts against the contact block, and the bottom surface of the contact block is connected with a push block for pushing the pipe into the V-shaped groove; Two clamp seats are arranged on one side of the feeding seat and respectively fix the pipe fittings at different positions. A welding seat for welding the connecting parts of the pipe fittings is arranged between the two clamp seats.

[0008] A further technical improvement of the present invention is that: a sliding groove communicating with the concave cavity on the inner wall of the feeding seat is provided at the bottom of the inner cavity of the feeding seat, and the surface of the sliding groove is arranged flush with the limit platform; A rail groove is provided on the top surface of the adjustment plate, a limit seat pushed by a cylinder is slidably installed inside the rail groove, a spring 1 is connected to one side of the limit seat, and one end of the spring 1 is fixed to the inner wall of the rail groove.

[0009] A further technical improvement of the present invention is that a mounting plate is provided on the bottom surface of the push block, and a second spring is sleeved on the bottom of the push block, one end of the second spring is fixed to the mounting plate, and the other end of the second spring is fixed to the top surface of the inner cavity of the feed seat.

[0010] A further technical improvement of the present invention is that a limiting block for limiting the end of the functional plate is fixed in the top cavity of the feed seat.

[0011] A further technical improvement of the present invention lies in that: inclined sliding transfer plates are symmetrically provided on the two surfaces of the V-shaped groove, a support plate is fixed to the bottom surface of the transfer plate, a transmission platform is fixed to one side of the support plate, a sleeve is provided in the inner cavity of the feeding seat, the bottom of the support plate is movably extended into the cavity at the top of the sleeve, and a spring four is sleeved on the outer side of the bottom of the support plate, and one end of the spring four is fixed to the top surface of the sleeve.

[0012] A further technical improvement of the present invention is that: the inner cavity of the feeding seat is equipped with two transmission screws through the same dual-axis motor, the transmission screws are threadedly sleeved with the sleeves on the corresponding sides, and the inner cavity of the feeding seat is fixed with a fixed platform that slides with the transmission platform, and the inclination angle of the fixed platform is consistent with that of the transfer plate.

[0013] A further technical improvement of the present invention is that an electric push rod that rotates in a circular shape is installed inside the welding seat, and the pushing end of the electric push rod is connected to a track plate. A laser welding head is provided in the middle of the bottom surface of the track plate, and two docking plates are provided on the inner side surface of the track plate. A telescopic rod is fixed to the outside of the docking plate, and one end of the telescopic rod is fixed to the inner cavity of the welding seat.

[0014] A further technical improvement of the present invention is that: two fixed channels are provided on the inner side of the docking plate, one of the fixed channels is provided with a vent for introducing argon gas, a telescopic portion is provided on the inner side of each fixed channel, and a fitting member that fits with the corresponding pipe is provided on the inner side of the telescopic portion; Two automatically engaged sealing pads are arranged between the two butt joint plates. The sealing pads are arranged in a semi-annular structure. The end surface of one sealing pad is provided with a concave portion, and the end surface of the other sealing pad is provided with a convex portion.

[0015] A working method of a condenser coil welding device, the working method comprising the following steps: Step 1: The pipe arrives at the feeding seat from the fixed point of the feeding channel. The upward movement of the adjustment plate drives the pressing wheel and pushes the push block, so that the function plate slides in the cavity limit position at the top of the feeding seat. The push wheel pushes the contact block and the push block to rotate together, so that the push wheel rotates in the vacant part, and the rotating push block is used to push the pipe into the V-shaped groove; Step 2: One end of the bent pipe is fixed by a fixture seat, and the transmission platform and the fixed platform cooperate to drive the transfer plate to move horizontally while the support plate rises along the inclined direction. Through the synchronous tilting and sliding of the two transfer plates, the height of the pipe is changed to be consistent with the center of the straight section of the fixed bent pipe; Step 3: The adjusting plate moves downward and slides along the limit table, and the adjusting plate pushes the pipe fitting through another clamp seat to reach the inside of the welding seat. In this process, the limit seat slides within the rail groove and compresses the spring 1, and fixes the pipe fitting through another clamp seat; Step 4. Before and during welding, argon gas is continuously introduced into the outside of the elbow and the pipe fittings through the vent. The argon gas enters the inside of the pipe fittings and the elbow from the gap at the joint, displaces the internal gas and discharges it to form a protective layer. The pipe fitting joints are welded in an annular shape by a rotating laser welding head. After welding, argon gas is continued to be introduced for a period of time to protect the high-temperature weld from cooling slowly.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a secondary pushing linkage component, the pipe fittings are first transported to the feeding seat at a fixed point through the feeding channel, and the upward movement of the adjusting plate drives the pressure wheel to follow the transmission and squeeze the push block upward. While the push block slides upward, it pushes the function plate to slide horizontally in the cavity at the top of the feeding seat. At this time, the push wheel contacts the contact block, so that the push block pushes the pipe fittings into the V-shaped groove, and the fixed rod on the push wheel compresses the torsion spring, so that the push wheel moves upward without affecting the rotation of the contact block; the pipe fittings entering the V-shaped groove are adjusted in height to make the pipe fittings consistent with the center of the straight section of the condenser bend pipe, as shown in the figure, by moving the adjusting plate downward, the adjusting plate slides along the limit table at this time. In this process, the adjusting plate slowly moves out of the concave cavity on the inner wall of the feeding seat and pushes one end of the pipe fitting to make it discharge smoothly. By moving the adjusting plate upward and downward, automatic pushing of pipe fittings for loading and discharging is realized; 2. The fitting is driven to be in close contact with the pipe fitting on the corresponding side through the telescopic part. Before and during welding, argon gas is continuously introduced to the outside of the elbow and the pipe fitting through the vent in the fixed channel. Argon gas enters the inside of the pipe fitting and the elbow through the gap at the joint, displaces the original gas inside and forms a protective layer to protect the inner wall of the weld. The pipe joint is welded in an annular manner through the rotating laser welding head to form a protective environment inside the weldment and the weld to avoid oxidation of the metal at high temperature, thereby improving the quality of the weld. After welding, continue to introduce argon gas for a period of time to protect the high-temperature weld to cool slowly and avoid oxidation residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the feeding seat and the feeding seat of the present invention; Figure 3 It is a schematic diagram of the installation structure of the adjustment plate of the present invention; Figure 4 This is a schematic diagram of the installation structure of the functional board of the present invention; Figure 5 It is a schematic diagram of the installation structure of the transfer plate of the present invention; Figure 6 It is a schematic diagram of the internal structure of the welding seat of the present invention; Figure 7 For the present invention Figure 6 A partial enlarged view of the middle A; Figure 8 It is a schematic structural diagram of the sealing gasket of the present invention.

[0019] In the figure: 1. feeding seat; 2. feeding channel; 3. feeding seat; 4. V-shaped groove; 5. transfer plate; 6. fixture seat; 7. welding seat; 8. adjustment plate; 9. sliding groove; 10. limit table; 12. rail groove; 13. limit seat; 14. spring one; 15. function plate; 16. rotating groove; 17. limit block; 18. push block; 19. pressure wheel; 20. spring two; 21. push wheel; 22. spring three; 23. contact block; 24. push block; 25. transmission screw; 26. sleeve; 27. spring four; 28. support plate; 29. ​​transmission table; 30. fixed table; 31. electric push rod; 32. telescopic rod; 33. track plate; 34. sealing pad; 35. docking plate; 36. telescopic part; 37. fitting; 38. laser welding head; 39. vent. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-Figure 8 As shown, the present invention provides a welding device for a condenser coil, comprising a feed seat 1, a feeding seat 3 is connected to one side of the feed seat 1, a feed channel 2 for pipe fittings to enter is penetrated through the end surface of the feeding seat 3, a V-shaped groove 4 for contacting the pipe fittings is provided on the bottom surface of the inner cavity of the feed seat 1, and a secondary pushing linkage assembly is installed on the top of the inner cavity of the feed seat 1, and the secondary pushing linkage assembly includes an adjustment plate 8 that is lifted and slidably arranged in a concave cavity on the inner wall of the feed seat 1, a limit platform 10 is arranged in the concave cavity, and an inclined surface that slides with the limit platform 10 is provided on one side of the adjustment plate 8; A pressing wheel 19 is installed on the top surface of the adjusting plate 8, and the upper end surface of the pressing wheel 19 abuts against a trigger pushing unit; The trigger push unit includes a push block 18 elastically mounted on the top cavity of the feed seat 1, one end of the push block 18 abuts against a functional plate 15 movable in the top cavity of the feed seat 1, the end of the functional plate 15 is connected to a spring 3 22, one end of the spring 3 22 is fixed to the cavity at the top of the feed seat 1; The top of the feed seat 1 is provided with a rotating groove 16 communicating with its cavity, and a vacant portion is provided at the bottom of one end of the function plate 15, in which a push wheel 21 is rotatably connected through a torsion spring, and the end of the push wheel 21 is abutted against a contact block 23, which is rotatably installed in the rotating groove 16, and the bottom surface of the contact block 23 is connected to a push block 24 for pushing the pipe into the V-shaped groove 4; It should be noted that the push wheel 21 is mounted on the rod body, and the rod body is rotationally connected to the vacant portion through a torsion spring, and the push wheel 21 is indirectly connected to the vacant portion through the torsion spring; Two clamp seats 6 are provided on one side of the feeding seat 1 , and a welding seat 7 for welding the connection of the pipe fittings is provided between the two clamp seats 6 .

[0022] The straight section of the condenser elbow is fixed by a fixture seat 6, and the pipe is first transported to the feeding seat 3 through the feed channel 2. Figure 2 As shown, by the upward movement of the adjustment plate 8, the pressing wheel 19 is driven to follow the transmission and press the push block 18 upward. While the push block 18 slides upward, it pushes the functional plate 15 to slide horizontally in the top cavity of the feed seat 1, as shown in FIG. Figure 4 As shown, the function plate 15 slides to the left and squeezes the spring 3 22. During the horizontal sliding process, the push wheel 21 contacts the contact block 23, so that the contact block 23 rotates counterclockwise around the connecting axis with the rotating groove 16, thereby driving the push block 24 to push the pipe into the V-shaped groove 4. When the contact block 23 rotates, the fixed rod on the push wheel 21 compresses the torsion spring, so that the push wheel 21 moves upward without affecting the rotation of the contact block 23. The height of the pipe fitting entering the V-shaped groove 4 is adjusted so that the pipe fitting is consistent with the center of the straight section of the condenser elbow. Figure 3 As shown, by moving the adjustment plate 8 downward, the adjustment plate 8 slides along the limiting platform 10. In this process, the adjustment plate 8 slowly moves out of the inner wall cavity of the feeding seat 1 and pushes one end of the pipe fitting to make it discharge smoothly. The adjustment plate 8 pushes the pipe fitting through another clamp seat 6 to the inside of the welding seat 7, and then another clamp seat 6 is used to limit the pipe fitting. The bent pipe and the pipe fitting are then integrally welded through the welding seat 7 .

[0023] See also Figure 2 and Figure 3 As shown, the bottom of the inner cavity of the feed seat 1 is provided with a sliding groove 9 which communicates with the concave cavity of the inner wall of the feed seat 1, and the surface of the sliding groove 9 is arranged flush with the limit platform 10; A rail groove 12 is provided on the top surface of the adjustment plate 8, and a limit seat 13 driven by a cylinder is slidably installed inside the rail groove 12, and a spring 14 is connected to one side of the limit seat 13, and one end of the spring 14 is fixed to the inner wall of the rail groove 12; During the downward movement of the adjusting plate 8, due to the setting of the limiting platform 10, the limiting seat 13 slides within the rail groove 12 and compresses the spring 14, so that the adjusting plate 8 pushes the pipe fittings while moving downward, completing the discharge and pushing of the pipe fittings, that is, the automatic pushing of the pipe fittings for loading and discharging is realized by the upward and downward movement of the adjusting plate 8; The adjusting plate 8 slides along the limiting platform 10 into the sliding groove 9 , which is the maximum pushing distance. In this state, the pipe passes through the clamp seat 6 and reaches the inside of the welding seat 7 .

[0024] See also Figure 4As shown, a mounting plate is provided on the bottom surface of the push block 18, and a spring 20 is sleeved on the bottom of the push block 18, one end of the spring 20 is fixed to the mounting plate, and the other end of the spring 20 is fixed to the top surface of the inner cavity of the feed seat 1; A limiting block 17 is fixed in the top cavity of the feed seat 1 to limit the end of the functional plate 15; When the adjustment plate 8 moves upward, it drives the pressure wheel 19 to contact the push block 18, thereby compressing the spring 20 and triggering the horizontal sliding of the function plate 15. As the external force of the push block 18 disappears, the spring 20 recovers its deformation and the push block 18 returns to its initial position. Due to the setting of the limiting block 17, the resetting of the function plate 15 is blocked.

[0025] See also Figure 5 As shown, the two surfaces of the V-shaped groove 4 are symmetrically provided with inclined sliding transfer plates 5, the bottom surface of the transfer plate 5 is fixed with a support plate 28, one side of the support plate 28 is fixed with a transmission platform 29, the inner cavity of the feed seat 1 is provided with a sleeve seat 26, the bottom of the support plate 28 is movably extended into the cavity at the top of the sleeve seat 26, and the outer side of the bottom of the support plate 28 is sleeved with a spring four 27, one end of the spring four 27 is fixed to the top surface of the sleeve seat 26; The inner cavity of the feed seat 1 is equipped with two transmission screws 25 through the same dual-axis motor, and the transmission screws 25 are threadedly sleeved with the sleeve 26 on the corresponding side. The inner cavity of the feed seat 1 is fixed with a fixed platform 30 that slides with the transmission platform 29, and the fixed platform 30 is consistent with the inclination angle of the transfer plate 5; The pipe fitting is pushed into the V-shaped groove 4 by the push block 24, and the two driving screws 25 are driven by the dual-axis motor to rotate, so that the corresponding sleeve 26 slides close to the inner cavity of the feed seat 1, and the support plate 28 slides synchronously at this time. Due to the cooperation between the transmission platform 29 and the fixed platform 30, it rises along the inclined direction of the corresponding side transfer plate 5. At this time, the spring four 27 elastically stretches, and the synchronous tilting and sliding of the two transfer plates 5 maintains consistency, changing the discharge height of the pipe fitting to make it consistent with the center of the straight section of the fixed elbow.

[0026] See also Figure 6-Figure 8 As shown, the welding seat 7 is internally installed with an electric push rod 31 that rotates in a circular manner. There are two electric push rods 31. The pushing end of the electric push rod 31 is connected to a track plate 33. A laser welding head 38 is provided in the middle of the bottom surface of the track plate 33, and two docking plates 35 are provided on the inner side surface of the track plate 33. A telescopic rod 32 is fixed to the outside of the docking plate 35, and one end of the telescopic rod 32 is fixed to the inner cavity of the welding seat 7. Two fixed channels are provided on the inner side of the docking plate 35. A vent 39 for introducing argon gas is installed on one of the fixed channels. A telescopic portion 36 is provided on the inner side of each fixed channel. A fitting piece 37 that fits with the corresponding pipe is provided on the inner side of the telescopic portion 36. Two automatically engaged sealing pads 34 are arranged between the two docking plates 35. The sealing pads 34 are arranged in a semi-annular structure. The end surface of one sealing pad 34 is provided with a concave portion, and the end surface of the other sealing pad 34 is provided with a convex portion. When the electric push rod 31 rotates in an annular manner, it drives the track plate 33 to slide along the docking plate 35. When the laser welding head 38 rotates through a certain area of ​​the two sealing gaskets 34, the sealing gaskets 34 in this area automatically reset and seal; Initially, the electric push rod 31 in the welding seat 7 is in a closed state. After the pipes on both sides are fixed, the upper and lower electric push rods 31 are synchronously extended to push the telescopic rod 32 to open. At this time, the telescopic part 36 drives the fitting 37 to be in close contact with the pipe on the corresponding side. Before and during welding, argon gas is continuously introduced to the outside of the elbow and the pipe fitting through the vent 39 in the fixed channel. The argon gas enters the inside of the pipe fitting and the elbow through the gap at the joint, displaces the original gas inside and forms a protective layer to improve the inner wall of the weld. The rotating laser welding head 38 performs annular welding on the pipe fitting joint, forming a protective environment inside the weld and the weld to prevent the metal from being oxidized at high temperature, thereby improving the quality of the weld. After welding, continue to pass argon gas for a period of time to protect the high-temperature weld from cooling slowly and avoid oxidation residues.

[0027] The present invention provides a working method of a condenser coil welding device, the working method comprising the following steps: Step 1: The pipe arrives at the feeding seat 3 from the feed channel 2 at a fixed point. The upward movement of the adjustment plate 8 drives the pressing wheel 19 and pushes the push block 18, so that the function plate 15 slides in the cavity limit position at the top of the feed seat 1, and the push wheel 21 pushes the contact block 23 and the push block 24 to rotate together, so that the push wheel 21 rotates in the vacant part, and the rotating push block 24 is used to push the pipe into the V-shaped groove 4; Step 2: One end of the bent pipe is fixed by a fixture seat 6, and the transmission platform 29 cooperates with the fixed platform 30, and the support plate 28 drives the transfer plate 5 to move horizontally while rising along the inclined direction. Through the synchronous tilting and sliding of the two transfer plates 5, the height of the pipe is changed to be consistent with the center of the straight section of the fixed bent pipe; Step 3: The adjusting plate 8 moves downward and slides along the limiting platform 10, and the adjusting plate 8 pushes the pipe fitting through another clamp seat 6 to reach the inside of the welding seat 7. In this process, the limiting seat 13 slides within the rail groove 12 and compresses the spring 14, and fixes the pipe fitting through another clamp seat 6; Step 4: Before and during welding, argon gas is continuously introduced to the outside of the elbow and the pipe fitting through the vent 39. The argon gas enters the inside of the pipe fitting and the elbow through the gap at the joint, displaces the internal gas and discharges it to form a protective layer. The pipe fitting joint is circularly welded by the rotating laser welding head 38. After welding, argon gas is continued to be introduced for a period of time to protect the high-temperature weld from slow cooling.

[0028] When the present invention is in use, by setting a secondary pushing linkage assembly, the pipe fittings are first transported to the feeding seat 3 at a fixed point through the feeding channel 2, and the upward movement of the adjusting plate 8 drives the pressing wheel 19 to follow the transmission and press the push block 18 upward. While the push block 18 slides upward, it pushes the functional plate 15 to slide horizontally in the top cavity of the feeding seat 1. At this time, the push wheel 21 contacts the contact block 23, so that the push block 24 is driven to push the pipe fittings into the V-shaped groove 4, and the fixed rod on the push wheel 21 compresses the torsion spring, so that the push wheel 21 is upward, which does not affect the rotation of the contact block 23; the pipe fittings entering the V-shaped groove 4 are adjusted in height so that the pipe fittings are consistent with the center of the straight section of the condenser bend pipe, see Figure 3 As shown, by moving the adjustment plate 8 downward, the adjustment plate 8 slides along the limit platform 10. In this process, the adjustment plate 8 slowly moves out of the inner wall cavity of the feed seat 1 and pushes one end of the pipe fitting to discharge the pipe fitting smoothly. By moving the adjustment plate 8 upward and downward, the automatic pushing of the pipe fitting loading and the automatic pushing of the pipe fitting discharging are realized. The fitting 37 is driven by the telescopic portion 36 to be in close contact with the pipe fitting on the corresponding side. Before and during welding, argon gas is continuously introduced into the outside of the elbow and the pipe fitting through the vent 39 in the fixed channel. The argon gas enters the inside of the pipe fitting and the elbow through the gap at the connection, displaces the original gas inside and forms a protective layer to protect the inner wall of the weld. The pipe joint is welded in an annular manner by the rotating laser welding head 38 to form a protective environment inside the weldment and the weld to avoid oxidation of the metal at high temperature, thereby improving the quality of the weld. After welding, argon gas is continued to be introduced for a period of time to protect the high-temperature weld to cool slowly and avoid oxidation residues.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A welding device for a condenser coil, comprising a feed seat (1), characterized in that: A V-shaped groove (4) is provided on the bottom surface of the inner cavity of the feed seat (1); A feeding seat (3) is arranged on one side of the feeding seat (1), and a feeding channel (2) for a pipe to enter is provided through the surface of the end thereof; A secondary material pushing linkage assembly is installed at the top of the inner cavity of the material feeding seat (1); An adjusting plate (8) is arranged in a lifting and sliding manner in a concave cavity on the inner wall of the feeding seat (1), and a limit platform (10) is arranged in the concave cavity and is slidably matched with the upper inclined surface of the adjusting plate (8); A pressing wheel (19) is mounted on the top surface of the adjusting plate (8), and an upper end surface of the pressing wheel (19) is in contact with a triggering and pushing unit; A push block (18) elastically mounted on the top cavity of the feed seat (1); A functional plate (15) is movably mounted in the cavity at the top of the feed seat (1), one end of which is in contact with one end of the push block (18), and the other end of which is connected to a spring three (22), one end of which is fixed to the cavity at the top of the feed seat (1), and a vacant portion is provided near the bottom of the spring three (22), and a push wheel (21) is rotatably connected in the vacant portion via a torsion spring; A rotating groove (16) is arranged at the top of the feeding seat (1) and communicated with the cavity, and a contact block (23) is rotatably installed inside the rotating groove (16). The end of the push wheel (21) abuts against the contact block (23), and the bottom surface of the contact block (23) is connected to a push block (24) for pushing the pipe into the V-shaped groove (4); Two clamp seats (6) are arranged on one side of the feed seat (1) and respectively fix the pipe fittings at different locations. A welding seat (7) for welding the connection of the pipe fittings is arranged between the two clamp seats (6).

2. A condenser coil welding device according to claim 1, characterized in that: The bottom of the inner cavity of the feed seat (1) is provided with a sliding groove (9) which communicates with the inner wall concave cavity of the feed seat (1), and the surface of the sliding groove (9) is arranged flush with the limit platform (10); A rail groove (12) is provided on the top surface of the adjustment plate (8), a limit seat (13) driven by a cylinder is slidably mounted inside the rail groove (12), a spring (14) is connected to one side of the limit seat (13), and one end of the spring (14) is fixed to the inner wall of the rail groove (12).

3. A condenser coil welding device according to claim 2, characterized in that: A mounting plate is provided on the bottom surface of the push block (18), and a second spring (20) is sleeved on the bottom of the push block (18), one end of the second spring (20) is fixed to the mounting plate, and the other end of the second spring (20) is fixed to the top surface of the inner cavity of the feed seat (1).

4. A condenser coil welding device according to claim 3, characterized in that: A limiting block (17) for limiting the end of the functional plate (15) is fixed in the top cavity of the material feeding seat (1).

5. A condenser coil welding device according to claim 4, characterized in that: The two surfaces of the V-shaped groove (4) are symmetrically provided with inclined sliding transfer plates (5), the bottom surface of the transfer plate (5) is fixed with a support plate (28), one side of the support plate (28) is fixed with a transmission platform (29), the inner cavity of the feed seat (1) is provided with a sleeve seat (26), the bottom of the support plate (28) is movably extended into the cavity at the top of the sleeve seat (26), and the outer side of the bottom of the support plate (28) is sleeved with a spring four (27), one end of the spring four (27) is fixed to the top surface of the sleeve seat (26).

6. A condenser coil welding device according to claim 5, characterized in that: The inner cavity of the feed seat (1) is equipped with two transmission screws (25) through the same dual-axis motor, and the transmission screws (25) are threadedly sleeved with the sleeves (26) on the corresponding sides. The inner cavity of the feed seat (1) is fixed with a fixed platform (30) that is slidably matched with the transmission platform (29), and the inclination angle of the fixed platform (30) is consistent with that of the transfer plate (5).

7. A condenser coil welding device according to claim 6, characterized in that: An electric push rod (31) is installed inside the welding seat (7) so as to rotate in a circular manner. The pushing end of the electric push rod (31) is connected to a track plate (33). A laser welding head (38) is provided in the middle of the bottom surface of the track plate (33). Two docking plates (35) are provided on the inner side surface of the track plate (33). A telescopic rod (32) is fixed to the outside of the docking plate (35). One end of the telescopic rod (32) is fixed to the inner cavity of the welding seat (7).

8. A condenser coil welding device according to claim 7, characterized in that: Two fixed channels are provided on the inner side of the docking plate (35), one of the fixed channels is provided with a vent (39) for introducing argon gas, each fixed channel is provided with a telescopic portion (36) on the inner side, and a fitting (37) that fits with a corresponding pipe is provided on the inner side of the telescopic portion (36); Two automatically engaging sealing pads (34) are provided between the two butt joint plates (35); the sealing pads (34) are provided in a semi-annular structure; the end surface of one sealing pad (34) is provided with a concave portion, and the end surface of the other sealing pad (34) is provided with a convex portion.

9. A method for operating a condenser coil welding device according to claim 8, characterized in that: The working method comprises the following steps: Step 1: The pipe arrives at the feeding seat (3) from the feeding channel (2) at a fixed point. The upward movement of the adjusting plate (8) drives the pressing wheel (19) and pushes the push block (18), so that the function plate (15) slides within the cavity limit position at the top of the feeding seat (1). The push wheel (21) pushes the contact block (23) and the push block (24) to rotate together, so that the push wheel (21) rotates in the vacant part, and the rotating push block (24) is used to push the pipe into the V-shaped groove (4); Step 2: One end of the bent pipe is fixed by a fixture seat (6), and the transmission platform (29) cooperates with the fixed platform (30), so that the support plate (28) drives the transfer plate (5) to move horizontally and rise along the inclined direction. Through the synchronous tilting and sliding of the two transfer plates (5), the height of the pipe is changed to be consistent with the center of the straight section of the fixed bent pipe; Step 3: The adjusting plate (8) moves downward and slides along the limiting platform (10), and the adjusting plate (8) pushes the pipe fitting through another clamp seat (6) to reach the inside of the welding seat (7). During this process, the limiting seat (13) slides within the rail groove (12) and compresses the spring 1 (14), thereby fixing the pipe fitting through another clamp seat (6); Step 4: Before and during welding, argon gas is continuously introduced to the outside of the elbow and the pipe fitting through the vent (39), and the argon gas enters the inside of the pipe fitting and the elbow through the gap at the connection, displacing the internal gas and forming a protective layer, and the pipe fitting connection is annularly welded by a rotating laser welding head (38); after welding, argon gas is continuously introduced for a period of time to protect the high-temperature weld and allow it to cool slowly.

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