Brazing equipment for air conditioner radiator core

Abstract

This invention discloses a brazing device for air conditioner radiator cores, including a rotary conveyor frame assembly. Side pressure mechanisms are symmetrically arranged on both sides of the top of the rotary conveyor frame assembly. Each side pressure mechanism includes a transverse cylinder and a drive motor. Rotary ring rails are sleeved at both ends of the rotary conveyor frame assembly, and multiple sets of support frames are arranged at the bottom of the rotating ring rails. This invention uses the cooperation of conveying rollers and side clamps to smoothly and centrally transport the core to the rotary conveyor frame assembly. Limiting rollers and side clamps within the rotary conveyor frame assembly continue to limit the conveying, causing the core to reach the middle area of ​​the upper frame and be fixed. The rotating ring rails drive the rotary conveyor frame assembly to rotate, transferring the upper frame core to the welding bracket for brazing, while the lower frame receives the next set of cores. The welding bracket also flexibly adjusts the position and angle of the welding machine using various cylinders and ball shafts, welding from bottom to top. The generated debris falls into a slag collection tray for easy cleaning, achieving efficient and continuous brazing operations.

Description

Technical Field

[0001] This invention relates to the field of air conditioning manufacturing technology, specifically to a brazing equipment for air conditioning radiator cores. Background Technology

[0002] The development of brazing technology for air conditioner radiator cores stems from multiple driving forces, including improving air conditioner performance, adapting to large-scale production, and meeting energy conservation and environmental protection requirements.

[0003] In the early days, manual brazing relied on workers, which was not only inefficient but also caused large fluctuations in quality due to human factors. As industrialization accelerated, batch brazing methods such as furnace brazing emerged. Although multiple workpieces could be processed at once, they had shortcomings in temperature uniformity and precise control, making it difficult to ensure the consistency of brazing quality for each core.

[0004] Currently, the market's demands for air conditioner performance are constantly increasing, prompting the brazing of radiator cores to develop towards higher quality and higher precision. Stable and reliable brazed joints are crucial for ensuring the heat dissipation effect of air conditioners and extending their service life. The concept of energy conservation and environmental protection has taken root in people's hearts, prompting the brazing process to reduce energy consumption and pollution emissions.

[0005] During brazing, flux is used to remove oxides from the surface of the base material and to help the filler metal wet and spread. If the flux residue is not thoroughly cleaned after welding, it will gradually fall off during subsequent use, resulting in slag. For example, the borax and boric acid flux residues used in hard brazing are basically insoluble in water and are difficult to remove. They are usually removed by methods such as sandblasting. If not handled properly, residue will remain.

[0006] In conjunction with the above, it should be noted that: Chinese Patent Application No. CN2021206486930 discloses a brazing fixture for a large finned radiator core, which uses clamping components that are easy to clamp, reducing the deformation that occurs during the clamping and brazing of the radiator main fins. With the use of connecting components and limiting holes, it is suitable for radiator cores of different sizes.

[0007] However, in the actual welding process of air conditioner radiator cores, the lack of continuous and automated feeding of subsequent air conditioner radiator cores results in low efficiency of continuous welding processing. At the same time, the welding debris generated during the welding process lacks quick handling, which easily leads to residue on the surface of the radiator core, increasing the subsequent cleaning steps.

[0008] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0009] The purpose of this invention is to provide a brazing device for air conditioner radiator cores to solve the problems mentioned above.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a brazing device for an air conditioner radiator core, comprising a rotary conveyor frame assembly, wherein side pressing mechanisms are symmetrically arranged on both sides of the top of the rotary conveyor frame assembly, the side pressing mechanism comprising a transverse cylinder and a drive motor, rotary ring rails are sleeved at both ends of the rotary conveyor frame assembly, multiple sets of support frames are arranged at the bottom of the rotary ring rails, a welding bracket is arranged below the support frames, and external connecting frames are symmetrically arranged at both ends of the rotary conveyor frame assembly;

[0011] Side clamps are provided on the inner walls of both sides of the outer connecting frame. Friction strips are sleeved on the inner walls of the side clamps. Multiple sets of support beams are slidably arranged on the inner wall of the welding bracket. A sliding cylinder frame is arranged between the multiple sets of support beams. A welding machine is arranged on the top of the sliding cylinder frame.

[0012] Furthermore, the rotary conveyor assembly includes an upper frame and a lower frame. The top surface of the upper frame is recessed with multiple sets of air jet strips, and multiple sets of limiting rollers are arranged above the air jet strips. The limiting rollers and the air jet strips are arranged in a staggered manner.

[0013] Furthermore, the side pressure mechanism is provided with two sets of upper and lower components that are symmetrically engaged with the upper and lower frame surfaces. Connecting rods are symmetrically arranged on the outer side walls of the multiple sets of transverse cylinders, and connecting valves are provided on the sides of the connecting rods.

[0014] Furthermore, a sliding beam is slidably sleeved on the inner wall of the transverse cylinder, the drive motor is slidably sleeved in the middle of the sliding beam, the output end of the drive motor is provided with a telescopic cylinder facing the rotating conveyor assembly, and the bottom of the telescopic cylinder is provided with an adapter claw.

[0015] Furthermore, a rotary cylinder is embedded in the inner wall of the rotating ring rail, and a lifting cylinder is sleeved on the outer wall of one of the support frames. The top of the lifting cylinder is provided with a moving valve toward the rotating conveyor frame assembly.

[0016] Furthermore, multiple sets of conveying rollers are sleeved at the top center of the outer connecting frame, the side clamps are symmetrically embedded on the top inner walls of both sides of the outer connecting frame, and a propulsion cylinder inserted into the outer connecting frame is provided on the outer wall of the side clamps. A drive wheel sleeved inside the side clamps is provided inside the friction strip, and a micro motor with transmission connection is provided on the side of the drive wheel.

[0017] Furthermore, the welding bracket has bottom frames at both ends, and slag collection trays are slidably connected between the bottom frames. The inner wall of the welding bracket is symmetrically provided with lifting cylinder frames connected to the support beam.

[0018] Furthermore, a second rotary cylinder is slidably sleeved on the top of the sliding cylinder frame, a lifting cylinder is provided on the top of the second rotary cylinder, a universal ball joint is provided on the top of the lifting cylinder, and the top of the universal ball joint is sleeved with the bottom of the welding machine.

[0019] The beneficial effects of this invention are:

[0020] 1. This invention uses the cooperation of the outer connecting frame conveyor roller and the side clamp to stably transport and center the air conditioner radiator core, avoiding positional deviation during transfer. The rotating conveyor frame internal limit roller and the side clamp further limit the transport, ensuring that the core is accurately transported to the middle area of ​​the upper frame, which is conducive to subsequent precise welding, thus forming a precise transport and positioning system.

[0021] 2. This invention achieves alternating flipping of the upper and lower frames by cooperating with a rotating ring rail and a rotary cylinder. The upper frame core flips to the welding bracket for welding, and the lower frame is used to receive the next set of cores, forming a continuous flipping delivery brazing process, improving production efficiency, and forming a highly efficient continuous welding limiting feeding system.

[0022] 3. This invention utilizes a welding bracket with lifting cylinder frame, sliding cylinder frame, rotary cylinder II, universal ball shaft, and lifting cylinder to flexibly adjust the position, angle, and distance of the welding machine, enabling bottom-up welding of the air conditioner radiator core. This adapts to different welding needs, allows for flexible welding adjustments, and causes the generated debris to fall into the slag collection tray under gravity, facilitating centralized cleaning, maintaining a clean working environment, reducing the impact of debris on equipment and welding quality, and making debris collection convenient. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a perspective view of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the external connecting frame of the present invention;

[0026] Figure 3 This is a schematic diagram of the side clamp of the present invention;

[0027] Figure 4 This is a schematic diagram of the rotating conveyor frame assembly of the present invention;

[0028] Figure 5 This is a schematic diagram of the side-pressure mechanism of the present invention;

[0029] Figure 6 This is a schematic diagram of the rotating ring track of the present invention;

[0030] Figure 7This is a schematic diagram of the welding bracket of the present invention.

[0031] Reference numerals: 1. Rotary conveyor frame assembly; 101. Upper frame; 102. Lower frame; 103. Limiting roller; 104. Air jet strip; 2. Outer connecting frame; 201. Conveying roller; 202. Side clamping frame; 203. Propulsion cylinder; 204. Friction belt; 3. Rotary ring rail; 301. Rotary cylinder one; 302. Support frame; 303. Lifting cylinder; 304. Moving valve; 4. Side pressure mechanism; 01. Lateral movement cylinder; 402. Sliding beam frame; 403. Drive motor; 404. Telescopic cylinder; 405. Connecting rod; 406. Connecting valve; 5. Welding bracket; 501. Base frame; 502. Lifting cylinder frame; 503. Support beam; 504. Sliding cylinder frame; 505. Rotary cylinder II; 506. Lifting cylinder; 507. Universal ball shaft; 508. Welding machine; 509. Slag collection tray. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figure 1 - Figure 7 As shown, this embodiment is a brazing equipment for an air conditioner radiator core, including a rotary conveyor frame 1. Side pressing mechanisms 4 are symmetrically arranged on both sides of the top of the rotary conveyor frame 1. The side pressing mechanism 4 includes a transverse cylinder 401 and a drive motor 403. Rotary ring rails 3 are sleeved at both ends of the rotary conveyor frame 1. Multiple sets of support frames 302 are arranged at the bottom of the rotary ring rails 3. Welding brackets 5 are arranged below the support frames 302. External connecting frames 2 are symmetrically arranged at both ends of the rotary conveyor frame 1.

[0034] The air conditioner radiator core awaiting brazing is transferred to the outer connecting frame 2. The conveying roller 201 on the outer connecting frame 2 rotates under the drive of the drive motor 403, pulling and transferring the air conditioner radiator core. During the rotation of the conveying roller 201, the air conditioner radiator core is transported step by step closer to the rotating conveyor frame group 1.

[0035] When the air conditioner radiator core approaches the rotating conveyor frame group 1 along the outer connecting frame 2, the side clamp 202 is activated first. The push cylinder 203 drives multiple sets of side clamps 202 to move closer to each other, causing the friction strips 204 on the side clamps 202 to contact the outer walls on both sides of the air conditioner radiator core. The friction strips 204 are driven by a micro motor, causing the friction strips 204 to run at a synchronous speed with the conveyor roller 201, thereby smoothly transporting the air conditioner radiator core to the rotating conveyor frame group 1. This is beneficial for the centering and positioning of the air conditioner radiator core and avoids the air conditioner radiator core from being displaced by external factors during the transfer.

[0036] The rotary conveyor frame 1 includes an upper frame 101 and a lower frame 102. The top surface of the upper frame 101 is recessed with multiple sets of air jet strips 104. Above the air jet strips 104, multiple sets of limiting rollers 103 are arranged in a staggered manner.

[0037] It should be noted that the same side clamps 202 are provided on the inner walls of both sides of the rotary conveyor frame 1, and the side clamps 202 are located between the limiting roller 103 and the side pressing mechanism 4. The upper frame 101 and the lower frame 102 have the same structure. The air conditioner radiator core entering the rotary conveyor frame 1 is immediately hinged and limited by the limiting roller 103 and the side clamps 202 for conveying. A special motor is provided on the side of the rotary conveyor frame 1 and is connected to the limiting roller 103 for transmission. Under the drive of the special motor, the limiting roller 103 and the friction belt 204 cooperate to transport the air conditioner radiator core to the middle area of ​​the upper frame 101, and the limiting roller 103 stops running.

[0038] The side pressure mechanism 4 is provided with two sets of upper and lower components that are symmetrically engaged on the surfaces of the upper frame 101 and the lower frame 102. Multiple sets of transverse cylinders 401 are symmetrically provided with connecting rods 405 on their outer side walls, and connecting valves 406 are provided on the sides of the connecting rods 405. A sliding beam 402 is slidably sleeved on the inner side wall of the transverse cylinder 401. The drive motor 403 is slidably sleeved in the middle of the sliding beam 402. The output end of the drive motor 403 is provided with a telescopic cylinder 404 that faces the rotating conveyor frame 1, and the bottom of the telescopic cylinder 404 is provided with an adapter claw.

[0039] The side pressure mechanism 4 located above the upper shelf 101 is activated. The side pressure mechanism 4 drives the sliding beam 402 to move according to the force point on the air conditioner radiator core through the transverse cylinder 401 until the sliding beam 402 moves above the force point of the air conditioner radiator core. The drive motor 403 drives the telescopic cylinder 404 to further adjust until the adapter claw is moved above the force point. The telescopic cylinder 404 extends, causing the adapter claw to contact the force point, thereby limiting and fixing the air conditioner radiator core in the middle area of ​​the upper shelf 101.

[0040] A rotary cylinder 301 is embedded in the inner wall of the rotating ring rail 3. A lifting cylinder 303 is sleeved on the outer wall of a set of support frames 302. A moving valve 304 facing the rotating conveyor frame 1 is provided on the top of the lifting cylinder 303. The moving valve 304 is connected to the connecting valve 406.

[0041] Example 2: This example is a brazing equipment for an air conditioner radiator core, including side clamps 202 provided on the inner walls of both sides of the outer connecting frame 2, friction strips 204 sleeved on the inner walls of the side clamps 202, multiple sets of support beams 503 slidably arranged on the inner wall of the welding bracket 5, a sliding cylinder frame 504 arranged between the multiple sets of support beams 503, and a welding machine 508 arranged on the top of the sliding cylinder frame 504.

[0042] When the rotating ring rail 3 is started, the inner wall of the rotary cylinder 301 engages with the connecting rod 405, thereby driving the rotating conveyor frame 1 to rotate. This flips the upper frame 101 and the air conditioner radiator core after the limit position towards the welding bracket 5, causing the air conditioner radiator core to face the welding machine 508 for subsequent rapid brazing.

[0043] During this period, the lower frame 102 is flipped upwards. The support frame 302 is equipped with an embedded cylinder connected to the welding bracket 5. The embedded cylinder drives the support frame 302 to adjust up and down along the axial direction of the welding bracket 5. After the lower frame 102 is adjusted and flipped, it fits and adjusts with the outer connecting frames 2 at both ends. This is used to limit the transport of the next set of air conditioner radiator cores. After the air conditioner radiator cores limited in the upper frame 101 are brazed, the rotary cylinder 301 is reset, so that the brazed air conditioner radiator cores are transported from the inner limiting roller 103 of the upper frame 101 to the outer connecting frame 2.

[0044] The air conditioner radiator core, which is limited within the lower frame 102, is carried toward the welding bracket 5, forming a continuous flipping delivery brazing process for the air conditioner radiator core. The lifting cylinder 303 drives the moving valve 304 to move up and down, so that after the rotating conveyor frame 1 is rotated and adjusted, the lifting moving valve 304 slides up and then docks with the connecting valve 406 to provide external airflow to the inside of the jet strip 104. During the brazing process of the air conditioner radiator core, the jet strip 104 sprays airflow from top to bottom to cool the brazing area of ​​the air conditioner radiator core and to use the airflow to carry away the brazing debris and let it fall into the slag collection tray 509.

[0045] Multiple sets of conveying rollers 201 are sleeved at the top center of the outer connecting frame 2. Side clamps 202 are symmetrically embedded on the inner walls of the top on both sides of the outer connecting frame 2. A propulsion cylinder 203 inserted into the outer connecting frame 2 is provided on the outer wall of the side clamps 202. A drive wheel sleeved inside the side clamps 202 is provided inside the friction strip 204. A micro motor with transmission connection is provided on the side of the drive wheel.

[0046] The welding bracket 5 has a bottom frame 501 at both ends, and a slag collection plate 509 is slidably sleeved between the bottom frames 501. The inner wall of the welding bracket 5 is symmetrically provided with lifting cylinder frames 502 connected to the support beam 503.

[0047] A rotary cylinder 505 is slidably sleeved on the top of the sliding cylinder frame 504. A lifting cylinder 506 is installed on the top of the rotary cylinder 505. A universal ball shaft 507 is installed on the top of the lifting cylinder 506. The top of the universal ball shaft 507 is sleeved with the bottom of the welding machine 508.

[0048] The welding bracket 5 drives the support beam 503 to slide axially through the lifting cylinder frame 502, which in turn drives the sliding cylinder frame 504 and the welding machine 508 to slide up and approach the air conditioner radiator core that has been limited and flipped. The sliding cylinder frame 504 drives the rotary cylinder 505 to slide axially, which is used to adjust the position of the welding machine 508.

[0049] The support beam 503 drives the sliding cylinder frame 504 to slide axially. The universal ball shaft 507, in conjunction with the lifting cylinder 506, adjusts the distance and angle of the welding machine 508 approaching the air conditioner radiator core, so as to achieve welding of the air conditioner radiator core from bottom to top. This causes the debris generated during the welding process to fall directly onto the slag collection tray 509 under its own weight and gravity. The slag collection tray 509 collects the debris for subsequent centralized cleaning.

[0050] As can be seen from Embodiments 1 and 2, the air conditioner radiator core is transferred to the outer connecting frame 2. Through the cooperation of the conveying roller 201 and the side clamp 202, the core is transported smoothly and centrally to the rotary conveyor frame group 1. The limiting roller 103 and the side clamp 202 in the rotary conveyor frame group 1 continue to limit the conveying, so that the core reaches the middle area of ​​the upper frame 101 and is fixed. The rotating ring rail 3 drives the rotary conveyor frame group 1 to flip, and the core of the upper frame 101 is transferred to the welding bracket 5 for brazing. At the same time, the lower frame 102 receives the next group of cores. The welding bracket 5 flexibly adjusts the position and angle of the welding machine 508 through various cylinders and ball shafts, and welds from bottom to top. The generated debris falls into the slag collection tray 509 for easy cleaning, realizing efficient and continuous brazing operation.

[0051] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A brazing device for an air conditioner radiator core, comprising a rotary conveyor assembly (1), characterized in that, The rotating conveyor frame (1) is symmetrically provided with side pressure mechanisms (4) on both sides of the top. The side pressure mechanism (4) includes a transverse cylinder (401) and a drive motor (403). The rotating conveyor frame (1) is sleeved with a rotating ring rail (3) at both ends. The rotating ring rail (3) is provided with multiple sets of support frames (302) at the bottom. The support frame (302) is provided with a welded bracket (5) below it. The rotating conveyor frame (1) is symmetrically provided with an outer connecting frame (2) at both ends. Side clamps (202) are provided on the inner walls of both sides of the outer connecting frame (2), and friction strips (204) are sleeved on the inner walls of the side clamps (202). Multiple sets of support beams (503) are slidably arranged on the inner walls of the welding bracket (5). A sliding cylinder frame (504) is arranged between the multiple sets of support beams (503). A welding machine (508) is arranged on the top of the sliding cylinder frame (504). The rotary conveyor frame assembly (1) includes an upper frame (101) and a lower frame (102). The top surface of the upper frame (101) is recessed with multiple sets of air jet strips (104). Multiple sets of limiting rollers (103) are arranged above the air jet strips (104). The limiting rollers (103) and the air jet strips (104) are arranged in a staggered manner. The side pressure mechanism (4) is provided with two sets of upper and lower components that are symmetrically engaged on the surfaces of the upper frame (101) and the lower frame (102). Connecting rods (405) are symmetrically arranged on the outer side walls of the multiple sets of transverse cylinders (401), and connecting valves (406) are provided on the side of the connecting rods (405). The welding bracket (5) has a bottom frame (501) at both ends, and a slag collection plate (509) is slidably sleeved between the bottom frames (501). The inner wall of the welding bracket (5) is symmetrically provided with lifting cylinder frames (502) connected to the support beam (503).

2. The brazing equipment for an air conditioner radiator core according to claim 1, characterized in that, A sliding beam frame (402) is slidably sleeved on the inner wall of the transverse cylinder (401), and the drive motor (403) is slidably sleeved in the middle of the sliding beam frame (402). The output end of the drive motor (403) is provided with a telescopic cylinder (404) facing the rotating conveyor frame (1), and the bottom of the telescopic cylinder (404) is provided with an adapter claw.

3. The brazing equipment for an air conditioner radiator core according to claim 1, characterized in that, A rotary cylinder (301) is embedded in the inner wall of the rotating ring rail (3), and a lifting cylinder (303) is sleeved on the outer wall of a set of support frames (302). A moving valve (304) facing the rotating conveyor frame group (1) is provided on the top of the lifting cylinder (303).

4. The brazing equipment for an air conditioner radiator core according to claim 1, characterized in that, The outer connecting frame (2) has multiple sets of conveying rollers (201) sleeved at the top center. The side clamps (202) are symmetrically embedded on the top inner walls of both sides of the outer connecting frame (2). The side clamps (202) have propulsion cylinders (203) inserted into the outer connecting frame (2) on their outer walls. The friction strip (204) has a drive wheel sleeved inside the side clamps (202).

5. The brazing equipment for an air conditioner radiator core according to claim 1, characterized in that, The top of the sliding cylinder frame (504) is slidably sleeved with a rotary cylinder two (505), the top of the rotary cylinder two (505) is provided with a lifting cylinder (506), the top of the lifting cylinder (506) is provided with a universal ball shaft (507), and the top of the universal ball shaft (507) is sleeved with the bottom of the welding machine (508).

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