Aluminum alloy sheet-type radiator brazing device

Abstract

The present application relates to the technical field of brazing, and discloses an aluminum alloy sheet type radiator brazing device, which comprises a positioning frame used for splicing and fixing a radiator to be brazed, an induction heating device used for brazing the radiator by means of induction heating, an adjusting device used for adjusting the relative position of the positioning frame and the induction heating device to adjust the welding angle, a fin preheating assembly used for clamping and preheating the fins of the radiator, an oil pipe preheating assembly used for clamping and preheating the oil pipe of the radiator, and a control device, wherein the induction heating device, the adjusting device, the fin preheating assembly and the oil pipe preheating assembly are all signal-connected with the control device, the fin preheating assembly and the oil pipe preheating assembly are both provided with temperature sensors used for detecting real-time temperature, and the fin preheating assembly and the oil pipe preheating assembly are both arranged on the adjusting device. The present application is brazed by means of induction heating, and is flexible and simple to operate, which is conducive to reducing the brazing difficulty and improving the yield.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radiator brazing, in particular to an aluminum alloy sheet radiator brazing device. BACKGROUND

[0002] The melting point of aluminum alloy material is low, the solidus is only 615 DEG C, and the color of the substrate does not change with temperature when heated. The aluminum alloy sheet radiator (hereinafter referred to as radiator) cannot be judged by the welder according to the flame color when brazing and heating. The heat dissipation fin is fast, which leads to unstable brazing temperature. Therefore, the traditional oxygen-acetylene flame heating brazing completely relies on the experience of the welder to control the heating temperature, which requires high skills of the welder, and is prone to overburning problems, resulting in scrap of the workpiece and low yield.

[0003] In summary, how to reduce the brazing difficulty of the radiator and improve the yield is a problem to be solved by the technical personnel in the field at present. SUMMARY

[0004] Therefore, the purpose of the present application is to provide an aluminum alloy sheet radiator brazing device which utilizes induction heating method for brazing, and is flexible and simple to operate, thereby reducing the brazing difficulty and improving the yield.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] An aluminum alloy sheet radiator brazing device comprises:

[0007] A positioning frame is used for splicing and fixing the radiator to be brazed;

[0008] An induction heating device is used for brazing the radiator by induction heating method;

[0009] An adjusting device is used for adjusting the relative position of the positioning frame and the induction heating device to adjust the welding angle;

[0010] A fin preheating assembly is used for clamping and preheating the fins of the radiator;

[0011] An oil pipe preheating assembly is used for clamping and preheating the oil pipe of the radiator;

[0012] A control device is signal connected with the induction heating device, the adjusting device, the fin preheating assembly and the oil pipe preheating assembly;

[0013] The fin preheating assembly and the oil pipe preheating assembly are both provided with a temperature sensor for detecting real-time temperature, and the fin preheating assembly and the oil pipe preheating assembly are both arranged on the adjusting device.

[0014] Preferably, the adjusting device comprises a base and a rotating frame, the rotating frame is rotatably connected with the base, and the rotating frame is provided with limiting holes for mounting limiting members, and the base is provided with positioning holes for mounting the limiting members, and the number of the limiting holes and / or the number of the positioning holes is at least two.

[0015] Preferably, the base comprises a base horizontal rod, a base vertical rod and two base inclined struts connecting the base horizontal rod and the base vertical rod, and the two base inclined struts are both provided with the positioning holes.

[0016] The rotating frame comprises a rotating frame vertical rod hinged with the base vertical rod and a rotating frame horizontal rod perpendicularly connected with the rotating frame vertical rod, and the two ends of the rotating frame horizontal rod are both provided with the limiting holes.

[0017] Preferably, the oil pipe preheating assembly comprises a first oil pipe preheating block and a second oil pipe preheating block, and the first oil pipe preheating block and the second oil pipe preheating block are respectively arranged on the two sides of the rotating frame vertical rod.

[0018] The first oil pipe preheating block is connected with the rotating frame vertical rod through a mounting support, and the second oil pipe preheating block is slidably connected with the rotating frame horizontal rod through a quick-mounting wedge.

[0019] Preferably, the fin preheating assembly comprises a first fin preheating block and a second fin preheating block, and the first fin preheating block and the second fin preheating block are respectively connected with the two side surfaces of the rotating frame vertical rod.

[0020] Preferably, the positioning frame comprises two oppositely arranged U-shaped positioning frames, and the two side plates of the U-shaped positioning frames are respectively clampedly connected with the end portions of the two oil pipes.

[0021] Preferably, the fin preheating assembly and the oil pipe preheating assembly are both provided with electric heating elements.

[0022] The aluminum alloy sheet type radiator brazing device provided by the application is used as follows: first, the fins and the oil pipes of the radiator to be brazed are spliced and fixed by using the positioning frame; then, the fixed radiator is mounted on the adjusting device, and the relative positions of the positioning frame and the induction heating device are adjusted;

[0023] After the adjustment of the welding angle is completed, the control device controls the fin preheating assembly and the oil pipe preheating assembly to preheat the radiator until the real-time temperature reaches the preset temperature; after the preheating is completed, the control device controls the induction heating device to be turned on, and the fins and the oil pipes on one side are brazed by using the induction heating method.

[0024] After brazing is completed, the control device controls the fin preheating assembly, the oil pipe preheating assembly and the induction heating device to stop working, adjusts the position of the radiator through the adjusting device, so that the oil pipe on the other side of the radiator is aligned with the induction heating device; then, the control device controls the induction heating device to start, and brazes the fin and the oil pipe on the other side by using the induction heating mode, so that the brazing of the whole radiator is completed.

[0025] The brazing device for the aluminum alloy sheet type radiator provided by the application preheats the radiator by using the fin preheating assembly and the oil pipe preheating assembly, which is beneficial to improve the stability of the brazing temperature, and improves the reliability and implementability of brazing.

[0026] The brazing heat source adopts the induction heating mode, the heating speed is fast, the heat is concentrated, the heating process can be quantitatively controlled by controlling the heating power and the heating time, the operation is simple, which is beneficial to reduce the requirement for personnel skills, improve the yield, and facilitate batch production. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute the embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0028] Figure 1 It is a structural schematic view of the radiator;

[0029] Figure 2 It is a structural schematic view of the specific embodiment of the brazing device for the aluminum alloy sheet type radiator provided by the application;

[0030] Figure 3 It is a side view schematic view of the brazing device for the aluminum alloy sheet type radiator;

[0031] Figure 4 It is an assembly schematic view of the radiator and the positioning frame;

[0032] Figure 5 It is a partial enlarged view of the assembly of the radiator and the fin preheating assembly, the oil pipe preheating assembly;

[0033] Figure 6 It is an assembly schematic view of the radiator and the fin preheating assembly;

[0034] Figure 7 It is a principle schematic view of the adjusting device adjusting the welding angle;

[0035] Figure 8 It is a brazing principle schematic view of the induction heating device and the radiator.

[0036] Figures 1-8 In the present application,

[0037] 01 is a radiator, 011 is a fin, 012 is an oil pipe, 1 is a positioning frame, 2 is an adjusting device, 21 is a base, 211 is a positioning hole, 22 is a rotating frame, 221 is a limiting hole, 3 is a fin preheating assembly, 31 is a first fin preheating block, 32 is a second fin preheating block, 4 is an oil pipe preheating assembly, 41 is a first oil pipe preheating block, 42 is a second oil pipe preheating block, 43 is a quick-mount wedge, 5 is an induction heating device, 51 is an induction heating coil, and 6 is a control device. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0039] The core of the present application is to provide an aluminum alloy sheet type radiator brazing device which utilizes an induction heating method for brazing, is flexible and simple to operate, and is conducive to reducing brazing difficulty and improving yield.

[0040] Please refer to Figures 2-8 .

[0041] The present application provides an aluminum alloy sheet type radiator brazing device, which comprises:

[0042] A positioning frame 1 is used for splicing and fixing a radiator 01 to be brazed;

[0043] An induction heating device 5 is used for brazing the radiator 01 by using an induction heating method;

[0044] An adjusting device 2 is used for adjusting the relative position of the positioning frame 1 and the induction heating device 5 to adjust the welding angle;

[0045] A fin preheating assembly 3 is used for clamping and preheating the fins 011 of the radiator 01;

[0046] An oil pipe preheating assembly 4 is used for clamping and preheating the oil pipe 012 of the radiator 01;

[0047] A control device 6 is signal connected with the induction heating device 5, the adjusting device 2, the fin preheating assembly 3 and the oil pipe preheating assembly 4;

[0048] The fin preheating assembly 3 and the oil pipe preheating assembly 4 are both provided with temperature sensors for detecting real-time temperature, and the fin preheating assembly 3 and the oil pipe preheating assembly 4 are both arranged on the adjusting device 2.

[0049] It should be noted that the above signal connection can be realized by line connection or by WIFI and other wireless communication modes.

[0050] Please refer to Figure 1 The radiator 01 is composed of fins 011 and oil pipes 012 on both sides, and the fins 011 and the oil pipes 012 are connected and sealed by brazing; in order to avoid the oil pipe 012 from sliding relative to the fin 011 during brazing, the positioning frame 1 is needed to splice and fix the fins 011 and the oil pipes 012 of the radiator 01 to be brazed before welding.

[0051] The positioning frame 1 can be connected with the fins 011 and the oil pipes 012 by clamping connection, or by common connecting pieces such as fastening bolts and fastening pins, and the specific connection mode is determined according to the actual production needs, which will not be repeated here.

[0052] Please refer to Figure 8 The induction heating device 5 includes an induction heating coil 51, and when the induction heating device 5 is powered on, the induction heating coil 51 generates eddy current due to electromagnetic induction, and the energy of the eddy current can be transmitted to the surrounding through heat conduction, thereby heating the fins 011 and the oil pipes 012 and completing the welding connection of the two.

[0053] The specific material, shape, size and output power of the induction heating coil 51 are determined according to the structure of the weld of the radiator 01 in actual production, which will not be repeated here.

[0054] Since the induction heating device 5 can only braze the fins 011 and the oil pipes 012 on one side, the adjusting device 2 is needed to adjust the relative position of the positioning frame 1 and the induction heating device 5 to adjust the welding angle and complete the welding of the welds on both sides of the fins 011.

[0055] The adjusting device 2 can change the side of the positioning frame 1 facing the induction heating device 5 by rotating, or change the relative position of the positioning frame 1 and the induction heating device 5 by translating along the U-shaped track. The specific structure and adjustment principle of the adjusting device 2 are determined, which will not be repeated here.

[0056] Considering that the radiator 01 has strong heat dissipation capacity, in order to enhance the stability of the brazing temperature, the radiator 01 needs to be preheated to maintain the relative stability of the brazing temperature; and the thickness and structure of the fins 011 and the oil pipes 012 are different, so that their heat conduction performances are different, and therefore the fin preheating assembly 3 and the oil pipe preheating assembly 4 are needed to preheat the fins 011 and the oil pipes 012 respectively.

[0057] In addition, the fin preheating assembly 3 and / or the oil pipe preheating assembly 4 also serve the function of connecting the positioning frame 1 and the adjusting device 2.

[0058] The heating principles of the fin preheating assembly 3 and the oil pipe preheating assembly 4 are not limited, and preferably, the fin preheating assembly 3 and the oil pipe preheating assembly 4 are provided with electric heating elements, and the radiator 01 is preheated by using an electric heating mode, which is more flexible and convenient to control.

[0059] In order to control the preheating temperature, the fin preheating assembly 3 and the oil pipe preheating assembly 4 are each provided with a temperature sensor, and the temperature sensor is in signal connection with the control device 6, so that the control device 6 controls the on-off and power of the fin preheating assembly 3 and the oil pipe preheating assembly 4 according to the real-time temperature measured by the temperature sensor.

[0060] Considering the brazing temperature range of the radiator 01, the temperature sensors of the fin preheating assembly 3 and the oil pipe preheating assembly 4 are usually thermocouples.

[0061] The fin preheating assembly 3 and the oil pipe preheating assembly 4 can be collectively referred to as a preheating device, and in order to increase the contact area of the preheating device and the radiator 01, the preheating device is usually arranged in the thickness direction of the radiator 01, that is, the preheating device is arranged on the side of the radiator 01 perpendicular to the thickness direction.

[0062] In use, first, the fins 011 and the oil pipes 012 of the radiator 01 to be brazed are spliced and fixed by using the positioning frame 1; the fixed radiator 01 is installed on the adjusting device 2, and the relative positions of the positioning frame 1 and the induction heating device 5 are adjusted;

[0063] After the adjustment of the welding angle is completed, the control device 6 controls the fin preheating assembly 3 and the oil pipe preheating assembly 4 to preheat the radiator 01 until the real-time temperature reaches the preset temperature; after the preheating is completed, the control device 6 controls the induction heating device 5 to be turned on, and the fins 011 and the oil pipes 012 on one side are brazed by using an induction heating mode;

[0064] After the brazing is completed, the control device 6 controls the fin preheating assembly 3, the oil pipe preheating assembly 4 and the induction heating device 5 to stop working, the position of the radiator 01 is adjusted by the adjusting device 2, so that the oil pipes 012 on the other side of the radiator 01 are aligned with the induction heating device 5; then, the control device 6 controls the induction heating device 5 to be turned on, and the fins 011 and the oil pipes 012 on the other side are brazed by using an induction heating mode, thereby completing the brazing of the entire radiator 01.

[0065] In the embodiment, the fin preheating assembly 3 and the oil pipe preheating assembly 4 are used to preheat the radiator 01, which is conducive to improving the stability of the brazing temperature and improving the reliability and implementability of the brazing.

[0066] The brazing heat source uses induction heating, which is fast and concentrated. The heating process can be quantitatively controlled by adjusting the heating power and heating time. It is easy to operate, which helps to reduce the skill requirements of personnel, improve the yield rate, and facilitate mass production.

[0067] Preferably, as shown in Figure 4, the positioning frame 1 can include two U-shaped positioning frames arranged opposite each other. The two side plates of the U-shaped positioning frame are respectively snapped and connected to the ends of the two oil pipes 012, thereby fixing the two oil pipes 012 and the fins 011 located between the two oil pipes 012.

[0068] Based on the above embodiments, the structure of the adjustment device 2 is defined. The adjustment device 2 includes a base 21 and a rotating frame 22. The rotating frame 22 is rotatably connected to the base 21, and the rotating frame 22 is provided with at least two limiting holes 221 for installing limiting members. The base 21 is provided with positioning holes 211 for installing limiting members.

[0069] Considering that the oil pipes 012 on both sides of the fin 011 need to be welded to it, the rotating frame 22 has at least two different mating states with the base 21. Therefore, the number of limiting holes 221 and / or the number of positioning holes 211 is at least two.

[0070] It may have one limiting hole 221 and at least two positioning holes 211, or it may have one positioning hole 211 and at least two limiting holes 221, or it may have at least two limiting holes 221 and at least two positioning holes 211.

[0071] Limiting components can be set as common connecting parts such as fastening bolts and fastening pins.

[0072] Please refer to Figure 2 The base 21 includes a base horizontal bar, a base vertical bar, and two base diagonal braces connecting the base horizontal bar and the base vertical bar. Both base diagonal braces are provided with positioning holes 211.

[0073] The rotating frame 22 includes a rotating frame vertical rod hinged to the base vertical rod and a rotating frame horizontal rod perpendicularly connected to the rotating frame vertical rod. Both ends of the rotating frame horizontal rod are provided with limiting holes 221.

[0074] Please refer to Figure 7 When the limiting hole 221 on the left side of the rotating frame crossbar is connected to the base diagonal brace on the right side of the base 21 through the limiting member, the mounting frame 1 is in the right welding position a. At this time, the induction heating device 5 can weld the fin 011 and the oil pipe 012 on the right side.

[0075] When the limiting hole 221 on the right side of the rotating frame crossbar is connected to the base diagonal brace on the left side of the base 21 through the limiting member, the mounting frame 1 is in the left welding position b. At this time, the induction heating device 5 can weld the fins 011 and the oil pipe 012 on the left side.

[0076] In this embodiment, the welding angle is adjusted by rotation, and the base 21 and the rotating frame 22 are connected by a limiting member. After welding is completed on one side of the radiator 01, it can be quickly switched to the other side, which is beneficial to improve welding efficiency. Moreover, the adjustment device 2 has a simple structure and requires less installation space.

[0077] For preferred options, please refer to [the following]. Figure 6 The fin preheating assembly 3 includes a first fin preheating block 31 and a second fin preheating block 32, which are respectively connected to the two sides of the rotating frame vertical rod.

[0078] Based on the above embodiments, please refer to Figure 5 and Figure 6 The oil pipe preheating assembly 4 includes a first oil pipe preheating block 41 and a second oil pipe preheating block 42, which are respectively located on both sides of the rotating frame vertical rod.

[0079] The first oil pipe preheating block 41 is connected to the vertical rod of the rotating frame via a mounting bracket, and the second oil pipe preheating block 42 is slidably connected to the horizontal rod of the rotating frame via a quick-release wedge block 43.

[0080] Please refer to Figure 5 The first oil pipe preheating block 41 and the second oil pipe preheating block 42 adopt a contour wrapping and fitting design. The first oil pipe preheating block 41 is an L-shaped preheating block and the second oil pipe preheating block 42 is a rectangular block. The two form an installation groove for clamping the oil pipe 012 of the radiator 01.

[0081] The first oil pipe preheating block 41 is fixedly connected to the rotating frame 22. The quick-release wedge block 43 is controlled to drive the second oil pipe preheating block 42 to move closer to the first oil pipe preheating block 41 until the second oil pipe preheating block 42 abuts against the oil pipe 012 of the radiator 01 and fixes the position of the quick-release wedge block 43, thereby connecting the radiator 01 and the rotating frame 22.

[0082] Conversely, by controlling the quick-release wedge block 43 to drive the second oil pipe preheating block 42 to move away from the first oil pipe preheating block 41, the radiator 01 can be removed from the rotating frame 22.

[0083] In this embodiment, the quick-release wedge block 43 can be used to quickly clamp and fix the radiator 01, which is beneficial to improving work efficiency.

[0084] It should be noted that the first and second fin preheating blocks 31 and 32, and the first oil pipe preheating block 41 and 42 mentioned in this application are only used to distinguish the different positions, and do not contain any limitation on the order.

[0085] The various embodiments are described in the specification, each having its own focal point with respect to the differences from other embodiments, and the same or similar parts among the various embodiments can be mutually referred to.

[0086] The aluminum alloy sheet type radiator brazing device provided by the present application is described in detail above. The principles and implementation manners of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A brazing device for an aluminum alloy finned radiator, characterized in that, include: Positioning bracket (1) is used to splice and fix the heat sink (01) to be brazed. The induction heating device (5) can braze the radiator (01) using induction heating. Adjustment device (2) is used to adjust the relative position of the positioning frame (1) and the induction heating device (5) to adjust the welding angle; Fin preheating assembly (3) is used to clamp and preheat the fins (011) of the radiator (01). Oil pipe preheating assembly (4) for clamping and preheating the oil pipe (012) of the radiator (01); The control device (6), the induction heating device (5), the adjustment device (2), the fin preheating assembly (3) and the oil pipe preheating assembly (4) are all signal connected to the control device (6); Both the fin preheating assembly (3) and the oil pipe preheating assembly (4) are equipped with temperature sensors for detecting real-time temperature, and both the fin preheating assembly (3) and the oil pipe preheating assembly (4) are mounted on the regulating device (2). The adjustment device (2) includes a base (21) and a rotating frame (22). The rotating frame (22) is rotatably connected to the base (21), and the rotating frame (22) is provided with a limiting hole (221) for installing a limiting member. The base (21) is provided with a positioning hole (211) for installing the limiting member. The number of the limiting holes (221) and / or the number of the positioning holes (211) is at least two. The base (21) includes a base horizontal bar, a base vertical bar, and two base diagonal braces connecting the base horizontal bar and the base vertical bar, and both base diagonal braces are provided with the positioning holes (211). The rotating frame (22) includes a rotating frame vertical rod hinged to the base vertical rod and a rotating frame horizontal rod perpendicularly connected to the rotating frame vertical rod. Both ends of the rotating frame horizontal rod are provided with the limiting hole (221). The oil pipe preheating assembly (4) includes a first oil pipe preheating block (41) and a second oil pipe preheating block (42), which are respectively located on both sides of the rotating frame vertical rod. The first oil pipe preheating block (41) is connected to the vertical rod of the rotating frame through a mounting bracket, and the second oil pipe preheating block (42) is slidably connected to the horizontal rod of the rotating frame through a quick-release wedge (43); The fin preheating assembly (3) includes a first fin preheating block (31) and a second fin preheating block (32), which are respectively connected to the two sides of the rotating frame vertical rod.

2. The brazing device for aluminum alloy finned radiators according to claim 1, characterized in that, The positioning frame (1) includes two U-shaped positioning frames arranged opposite each other, and the two side plates of the U-shaped positioning frame are respectively snapped and connected to the ends of the two oil pipes (012).

3. The brazing apparatus for aluminum alloy finned radiators according to any one of claims 1-2, characterized in that, Both the fin preheating assembly (3) and the oil pipe preheating assembly (4) are equipped with electric heating elements.

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