Brazing equipment for air conditioner radiator core

Abstract

The air conditioner radiator core brazing equipment comprises a rotary conveying frame set, side pressing mechanisms are symmetrically arranged on the two sides of the top of the rotary conveying frame set, each side pressing mechanism comprises a transverse moving air cylinder and a driving motor, the two ends of the rotary conveying frame set are sleeved with a rotary ring rail, and a plurality of supporting frames are arranged at the bottom of the rotary ring rail; through cooperation of the conveying rollers and the side clamping frames, the core bodies are stably conveyed to the rotary conveying frame set in a centering and positioning mode; a limiting roller and a side clamping frame in the rotary conveying frame set continue to conduct limiting conveying, the core bodies reach the middle area of the upper frame and are fixed, the rotary annular rail drives the rotary conveying frame set to turn over, the core bodies on the upper frame are rotated to a welding bracket to be brazed, and meanwhile the lower frame bears the next set of core bodies; the position and the angle of the welding machine are flexibly adjusted through various air cylinders and ball shafts, welding is conducted from bottom to top, generated chippings fall into a slag collecting disc and are convenient to clean, and efficient and continuous brazing operation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner manufacturing, and specifically to a brazing device for an air conditioner radiator core. Background Art

[0002] The development of the brazing technology for air conditioner radiator cores is driven by multiple factors, including improving the performance of air conditioners, adapting to large-scale production, and meeting the requirements of energy conservation and environmental protection;

[0003] In the early stage, manual brazing relied on workers' operations, which was not only inefficient but also had large quality fluctuations due to human factors. With the acceleration of the industrialization process, batch brazing methods such as furnace brazing emerged. Although multiple workpieces could be processed at one time, there were shortcomings in temperature uniformity and precise control, making it difficult to ensure the consistency of the brazing quality of each core;

[0004] At present, the market's requirements for the performance of air conditioners are constantly increasing, prompting the brazing of radiator cores to develop towards high quality and high precision. A stable and reliable brazed joint is crucial for ensuring the heat dissipation effect of air conditioners and extending their service life. The concept of energy conservation and environmental protection has gained popularity, prompting brazing processes to reduce energy consumption and pollution emissions.

[0005] During the brazing process, a brazing flux is needed to remove the oxides on the surface of the base material and help the filler metal wet and spread. If the brazing flux residue is not thoroughly cleaned after welding, these residues gradually fall off during subsequent use, resulting in a slagging phenomenon. For example, the residues of borax and boric acid brazing fluxes used in hard brazing are basically insoluble in water and are difficult to remove. Generally, methods such as sandblasting are required to remove them. If not handled properly, there will be residue left.

[0006] It should be noted in combination with the above content that the Chinese patent with the application number CN2021206486930 discloses a brazing fixture for a fin-and-tube type large radiator core, which uses a clamping component that is convenient for clamping to reduce the deformation that occurs during the clamping and brazing of the main radiator fins. In combination with the use of a connecting component and a limiting hole, it is applicable to radiator cores of different sizes;

[0007] However, in the actual welding process of air conditioner radiator cores, there is a lack of continuous and automatic feeding treatment for subsequent air conditioner radiator cores, resulting in low efficiency in the continuous welding and processing of air conditioner radiator cores. At the same time, the welding debris generated during the welding process lacks quick treatment, easily leading to residues on the surface of the radiator core and increasing subsequent cleaning steps.

[0008] In view of the above technical deficiencies, a solution is proposed herein. Summary of the Invention

[0009] The purpose of the present invention is to provide a brazing device for an air conditioner radiator core to solve the problems raised.

[0010] To achieve the above object, the present invention provides the following technical solution: An air conditioner radiator core brazing device, including a rotary conveying rack group, on both sides of the top of the rotary conveying rack group, side pressing mechanisms are symmetrically arranged. The side pressing mechanism includes a transverse moving cylinder and a driving motor. At both ends of the rotary conveying rack group, rotary ring tracks are sleeved. At the bottom of the rotary ring track, multiple groups of support frames are arranged. Below the support frame, a welding bracket is arranged. At both ends of the rotary conveying rack group, outer connection frames are symmetrically arranged;

[0011] On the inner walls of both sides of the outer connection frame, side clamping frames are arranged. On the inner wall of the side clamping frame, friction belt strips are sleeved. On the inner wall of the welding bracket, multiple groups of supporting beams are slidably arranged. Between the multiple groups of supporting beams, a sliding cylinder frame is arranged. On the top of the sliding cylinder frame, a welding machine is arranged.

[0012] Further, the rotary conveying rack group includes an upper rack and a lower rack. On the top surface of the upper rack, multiple groups of air jet strips are recessed. Above the air jet strips, multiple groups of limiting rollers are arranged. The limiting rollers and the air jet strips are arranged in a staggered manner.

[0013] Further, two sets of upper and lower side pressing mechanisms are symmetrically clamped on the surfaces of the upper rack and the lower rack. On the outer side walls of the multiple groups of transverse moving cylinders, connecting rods are symmetrically arranged. On the side of the connecting rod, a connecting valve is arranged.

[0014] Further, on the inner side wall of the transverse moving cylinder, a sliding beam frame is slidably sleeved. The driving motor is slidably sleeved in the middle of the sliding beam frame. The output end of the driving motor is provided with a telescopic cylinder facing the rotary conveying rack group, and at the bottom of the telescopic cylinder, an adaptor claw is arranged.

[0015] Further, a rotary cylinder one is embedded in the inner wall of the rotary ring track. On the outer side wall of one of the support frames, a lifting cylinder is sleeved. On the top of the lifting cylinder, a moving valve facing the rotary conveying rack group is arranged.

[0016] Further, multiple groups of conveying rollers are sleeved at the center of the top of the outer connection frame. The side clamping frames are symmetrically embedded in the inner walls of the two top sides of the outer connection frame. On the outer wall of the side clamping frame, a pushing cylinder inserted into the inside of the outer connection frame is arranged. Inside the friction belt strip, a driving wheel sleeved inside the side clamping frame is arranged. On the side of the driving wheel, a micro motor with a transmission connection is arranged.

[0017] Further, at the bottoms of both ends of the welding bracket, bottom frames are arranged. Between the bottom frames, a slag collecting tray is slidably sleeved. On the inner wall of the welding bracket, lifting cylinder frames connected to the supporting beams are symmetrically arranged.

[0018] Further, a rotary cylinder two is slidably sleeved on the top of the sliding cylinder frame. On the top of the rotary cylinder two, a jacking cylinder is arranged. On the top of the jacking cylinder, a universal ball shaft is arranged. The top of the universal ball shaft is sleeved with the bottom of the welding machine.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention combines the outer connection frame conveyor roller with the side clamping frame to stably transport the air conditioner radiator core and center it for positioning, avoiding position deviation during transfer. The inner limiting rollers and side clamping frames in the rotary conveyor frame group further limit the transportation to ensure that the core is accurately transported to the middle area of the upper rack, facilitating subsequent precise welding, thus forming precise transportation and positioning.

[0021] 2. The present invention realizes the alternating flipping of the upper rack and the lower rack through the cooperation of the rotary ring track and the first rotary cylinder. The core on the upper rack is flipped to the welding bracket for welding, and the lower rack is used to receive the next group of cores, forming a continuous flipping and delivering brazing process, improving production efficiency, and constituting an efficient continuous welding and limiting type feeding.

[0022] 3. The welding bracket of the present invention can flexibly adjust the position, angle and distance of the welding machine through the lifting cylinder frame, sliding cylinder frame, second rotary cylinder, universal ball shaft and lifting cylinder, etc., to realize the welding of the air conditioner radiator core from bottom to top, adapt to different welding requirements, and flexibly adjust the welding. Welding from bottom to top makes the generated debris fall to the slag collection tray under the action of gravity, facilitating centralized cleaning, keeping the working environment clean, reducing the impact of debris on the equipment and welding quality, and facilitating the collection of debris. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a three-dimensional view of the overall structure of the present invention;

[0025] Figure 2 It is a schematic structural view of the outer connection frame of the present invention;

[0026] Figure 3 It is a schematic structural view of the side clamping frame of the present invention;

[0027] Figure 4 It is a schematic structural view of the rotary conveyor frame group of the present invention;

[0028] Figure 5 It is a schematic structural view of the side pressing mechanism of the present invention;

[0029] Figure 6 It is a schematic structural view of the rotary ring track of the present invention;

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

[0031] Reference numerals: 1. Rotating conveyor frame assembly; 101. Upper frame; 102. Lower frame; 103. Limiting roller; 104. Air jet strip; 2. External connecting frame; 201. Conveying roller; 202. Side clamping frame; 203. Propelling cylinder; 204. Friction strip; 3. Rotating ring rail; 301. Rotating cylinder 1; 302. Support frame; 303. Lifting cylinder; 304. Moving valve; 4. Side pressure mechanism; 4 01. Transverse 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 2; 506. Lifting cylinder; 507. Universal ball joint; 508. Welding machine; 509. Slag collecting tray. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts 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 an air-conditioning radiator core brazing device, comprising a rotating conveying frame group 1, side pressure mechanisms 4 are symmetrically arranged on both sides of the top of the rotating conveying frame group 1, the side pressure mechanism 4 includes a transverse cylinder 401 and a drive motor 403, and rotating ring rails 3 are sleeved at both ends of the rotating conveying frame group 1. Multiple groups of support frames 302 are arranged at the bottom of the rotating ring rail 3, and a welding bracket 5 is arranged below the support frame 302. External connecting frames 2 are symmetrically arranged at both ends of the rotating conveying frame group 1.

[0034] The air-conditioning radiator core waiting for brazing is transferred to the external connecting frame 2. The conveying roller 201 on the external connecting frame 2 rotates under the drive of the driving motor 403, pulling and transferring the air-conditioning radiator core. During the rotation of the conveying roller 201, the air-conditioning radiator core is transported step by step close to the rotating conveying frame group 1.

[0035] When the air-conditioning radiator core approaches the rotating conveyor frame group 1 along the outer connecting frame 2, the side clamping frame 202 is started first, and the propulsion cylinder 203 drives multiple groups of side clamping frames 202 to move closer to each other, causing the friction strips 204 on the side clamping frames 202 to contact the outer walls on both sides of the air-conditioning radiator core. The friction strips 204 are driven by a micromotor, causing the friction strips 204 and the conveying rollers 201 to maintain a synchronous speed, thereby smoothly transporting the air-conditioning radiator core to the rotating conveyor frame group 1, which is beneficial to the centering and positioning transportation of the air-conditioning radiator core, and avoids the position displacement of the air-conditioning radiator core caused by external factors during transportation.

[0036] The rotating conveyor frame group 1 includes an upper frame 101 and a lower frame 102. The top surface of the upper frame 101 is concavely provided with multiple groups of air jet strips 104. Multiple groups of limiting rollers 103 are arranged above the air jet strips 104. The limiting rollers 103 and the air jet strips 104 are staggered.

[0037] It should be noted that the same side clamping frames 202 are provided on the inner walls on both sides of the rotating conveying frame group 1, and the side clamping frames 202 are located between the limiting roller 103 and the side pressure mechanism 4. The upper frame 101 and the lower frame 102 have the same structure. The air-conditioning radiator core entering the rotating conveying frame group 1 is immediately articulated and limited by the limiting roller 103 and the side clamping frames 202 for conveying. A special motor connected to the limiting roller 103 for transmission is provided on the side of the rotating conveying frame group 1. Driven by the special motor, the limiting roller 103 cooperates with the friction strip 204 to transport the air-conditioning radiator core to the middle area of the upper frame 101, and the limiting roller 103 suspends operation.

[0038] The side pressure mechanism 4 is provided with two groups, upper and lower, and is symmetrically clamped on the surface of the upper frame 101 and the lower frame 102. Connecting rods 405 are symmetrically arranged on the outer wall of the side of multiple groups of transverse cylinders 401, and a connecting valve 406 is arranged on the side of the connecting rod 405; a sliding beam 402 is slidably sleeved on the inner wall of the side of the transverse cylinder 401, and a driving motor 403 is slidably sleeved in the middle of the sliding beam 402. The output end of the driving motor 403 is provided with a telescopic cylinder 404 facing the rotating conveying frame group 1, and an adaptor claw is provided at the bottom of the telescopic cylinder 404.

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

[0040] A rotary cylinder 301 is embedded in the inner wall of the rotary ring track 3. A lifting cylinder 303 is sleeved on the outer side wall of one set of support frames 302. A moving valve 304 facing the rotary conveyor rack group 1 is arranged at the top of the lifting cylinder 303, and the moving valve 304 is butted against the connecting valve 406.

[0041] Embodiment 2: This embodiment is a brazing device for an air conditioner radiator core. Side clamping frames 202 are arranged on the inner walls of both sides of the outer connecting frame 2. Friction strip belts 204 are sleeved on the inner walls of the side clamping frames 202. Multiple support beams 503 are slidably arranged on the inner wall of the welding bracket 5. A sliding cylinder frame 504 is arranged between the multiple support beams 503. A welding machine 508 is arranged at the top of the sliding cylinder frame 504.

[0042] The rotary ring track 3 is started, and the inner wall of the first rotary cylinder 301 is clamped with the connecting rod 405, thereby driving the rotary conveyor rack group 1 to rotate, flipping the upper rack 101 and the limited air conditioner radiator core towards the welding bracket 5, and prompting the air conditioner radiator core to face the welding machine 508 for subsequent rapid brazing treatment.

[0043] During this period, the lower rack 102 is flipped upwards. An embedded cylinder connected to the welding bracket 5 is arranged inside the support frame 302. The embedded cylinder drives the support frame 302 to move up and down axially along the welding bracket 5 to adjust the fit between the flipped lower rack 102 and the outer connecting frames 2 at both ends for transporting and limiting the next group of air conditioner radiator cores. After the air conditioner radiator core limited in the upper rack 101 is brazed, the first rotary cylinder 301 resets, realizing the transportation of the brazed air conditioner radiator core from the limiting roller 103 in the upper rack 101 to the outer connecting frame 2.

[0044] The air conditioner radiator core limited in the lower rack 102 is carried towards the welding bracket 5, constituting a continuous flipping and delivering brazing process for the air conditioner radiator core; the lifting cylinder 303 drives the moving valve 304 to move up and down, facilitating the upward sliding of the lifting and moving valve 304 to be butted against the connecting valve 406 after the rotary conveyor rack group 1 rotates and adjusts, for providing external air flow inside the air jet strip 104. During the brazing process of the air conditioner radiator core, the air jet strip 104 sprays air flow from top to bottom for cooling the brazing area of the air conditioner radiator core, and using the air flow to entrain the debris generated by brazing to break away and fall into the slag collection tray 509.

[0045] Multiple conveying rollers 201 are sleeved at the center of the top of the outer connecting frame 2. The side clamping frames 202 are symmetrically embedded on the inner walls of the tops of both sides of the outer connecting frame 2. A propulsion cylinder 203 inserted into the inner part of the outer connecting frame 2 is arranged on the outer wall of the side clamping frame 202. A driving wheel sleeved inside the side clamping frame 202 is arranged inside the friction strip belt 204, and a micro motor is arranged on the side of the driving wheel in a transmission connection.

[0046] At the bottoms of both ends of the welding bracket 5, there are bottom frames 501. A slag collection tray 509 is slidably sleeved between the bottom frames 501. On the inner wall of the welding bracket 5, there are symmetrically arranged lifting cylinder frames 502 connected to the support beam 503.

[0047] On the top of the sliding cylinder frame 504, there is a rotary cylinder II 505 slidably sleeved. On the top of the rotary cylinder II 505, there is a jacking cylinder 506. On the top of the jacking cylinder 506, there is a universal ball shaft 507. 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 axially slide through the lifting cylinder frame 502, and then drives the sliding cylinder frame 504 and the welding machine 508 to slide upward and approach the air-conditioning radiator core body that has been flipped after being limited. The sliding cylinder frame 504 drives the rotary cylinder II 505 to axially slide to adjust the position of the welding machine 508.

[0049] The support beam 503 drives the sliding cylinder frame 504 to axially slide. The universal ball shaft 507 cooperates with the jacking cylinder 506 to adjust the distance and angle of the welding machine 508 approaching the air-conditioning radiator core body, so as to realize welding the air-conditioning radiator core body from bottom to top. During the welding process, the debris generated directly falls onto the slag collection tray 509 under the action of its own weight and gravity. The slag collection tray 509 collects it for subsequent centralized cleaning.

[0050] Combining Embodiment 1 and Embodiment 2, it can be seen that the air-conditioning radiator core body is transported to the outer connection frame 2. Through the cooperation of the conveying roller 201 and the side clamping frame 202, the core body is smoothly and centeredly positioned and transported to the rotary conveying frame group 1. The limiting roller 103 and the side clamping frame 202 in the rotary conveying frame group 1 continue to limit and convey, so that the core body reaches the middle area of the upper frame 101 and is fixed. The rotary ring rail 3 drives the rotary conveying frame group 1 to flip, and transfers the core body on the upper frame 101 to the welding bracket 5 for brazing. At the same time, the lower frame 102 receives the next group of core bodies. The welding bracket 5 flexibly adjusts the position and angle of the welding machine 508 through various cylinders and ball shafts, welds from bottom to top, and the generated debris falls into the slag collection tray 509 for easy cleaning, realizing efficient and continuous brazing operations.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the present invention to only the specific embodiments. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A brazing device for an air conditioner radiator core, comprising a rotary conveying frame group (1), characterized in that, On both sides of the top of the rotary conveying rack group (1), side pressing mechanisms (4) are symmetrically arranged. The side pressing mechanism (4) includes a transverse movement cylinder (401) and a driving motor (403). Rotating ring rails (3) are sleeved at both ends of the rotary conveying rack group (1). A plurality of support frames (302) are arranged at the bottom of the rotating ring rail (3). A welding bracket (5) is arranged below the support frame (302). Outer connecting frames (2) are symmetrically arranged at both ends of the rotary conveying rack group (1); Side clamping frames (202) are arranged on the inner walls on both sides of the outer connecting frame (2). Friction belt strips (204) are sleeved on the inner walls of the side clamping frames (202). A plurality of support beams (503) are slidably arranged on the inner wall of the welding bracket (5). A sliding cylinder frame (504) is arranged between the plurality of support beams (503). A welding machine (508) is arranged at the top of the sliding cylinder frame (504).

2. The brazing equipment for an air conditioner radiator core according to claim 1, characterized in that The rotary conveying rack group (1) includes an upper rack (101) and a lower rack (102). A plurality of air jet strips (104) are recessed on the top surface of the upper rack (101). A plurality 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.

3. The brazing equipment for an air conditioner radiator core according to claim 2, characterized in that, Two sets of the side pressing mechanisms (4) are arranged up and down and are symmetrically clamped on the surfaces of the upper rack (101) and the lower rack (102). A plurality of connecting rods (405) are symmetrically arranged on the outer side walls of the transverse movement cylinders (401). A connecting valve (406) is arranged on the side of the connecting rod (405).

4. A brazing device for an air conditioner radiator core, according to claim 3, characterized in that, A sliding beam frame (402) is slidably sleeved on the inner side wall of the transverse movement cylinder (401). The driving motor (403) is slidably sleeved in the middle of the sliding beam frame (402). The output end of the driving motor (403) is provided with a telescopic cylinder (404) facing the rotary conveying rack group (1), and an adapter claw is arranged at the bottom of the telescopic cylinder (404).

5. A brazing device for an air conditioner radiator core according to claim 1, characterized in that, A rotary cylinder one (301) is embedded on the inner wall of the rotating ring rail (3). A lifting cylinder (303) is sleeved on the outer side wall of one of the support frames (302). A moving valve (304) facing the rotary conveying rack group (1) is arranged at the top of the lifting cylinder (303).

6. The brazing equipment for an air conditioner radiator core according to claim 1, characterized in that, A plurality of conveying rollers (201) are sleeved at the center of the top of the outer connecting frame (2). The side clamping frames (202) are symmetrically embedded on the inner walls of the tops of both sides of the outer connecting frame (2). A pushing cylinder (203) inserted into the inside of the outer connecting frame (2) is arranged on the outer wall of the side clamping frame (202). A driving wheel sleeved inside the side clamping frame (202) is arranged inside the friction belt strip (204).

7. A brazing device for an air conditioner radiator core, as described in claim 1, wherein Bottom frames (501) are arranged at the bottoms of both ends of the welding bracket (5). A slag collecting tray (509) is slidably sleeved between the bottom frames (501). Lifting cylinder frames (502) connected to the support beams (503) are symmetrically arranged on the inner wall of the welding bracket (5).

8. A brazing device for an air conditioner radiator core according to claim 7, characterized in that, A rotary cylinder two (505) is slidably sleeved on the top of the sliding cylinder frame (504). A lifting cylinder (506) is arranged on the top of the rotary cylinder two (505). A universal ball shaft (507) is arranged 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).

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