Welding fixture for micro-channel heat exchanger of air conditioner

Abstract

The utility model belongs to the technical field of air conditioner micro-channel heat exchanger welding fixtures, and particularly relates to an air conditioner micro-channel heat exchanger welding fixture which is characterized in that a plurality of groups of fixture supports are connected onto a base in a sliding manner, placing grooves are formed in the plurality of groups of fixture supports, fins are arranged in the placing grooves, and the fins are arranged in the placing grooves. The placing groove is in sliding connection with two groups of clamping plates matched with the fins; the bottoms of the multiple sets of clamp supports are rotationally connected with a bidirectional lead screw in threaded connection with the clamping plate, and a first handle is arranged at one end of the bidirectional lead screw. The plurality of groups of clamp supports are in threaded connection with fastening screws matched with the base; an alignment plate matched with the fins is connected to the base in a sliding mode, an adjusting screw rod is connected to the base in a threaded mode, one end of the adjusting screw rod is rotationally connected with the alignment plate, and the other end of the adjusting screw rod is fixedly connected with a second handle; a plurality of groups of mounting holes are formed in the fins, and micro-channel flat pipes are arranged in the plurality of groups of mounting holes.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding jigs for air conditioner microchannel heat exchangers, and specifically relates to a welding jig for air conditioner microchannel heat exchangers. Background Art

[0002] Microchannel heat exchangers have high heat transfer efficiency and are commonly used in the fields of refrigerators and air conditioners; microchannel heat exchangers mainly consist of microchannel flat tubes, heat dissipation fins and header pipes; usually there are two header pipes, which are arranged at both ends of the microchannel flat tube and are used to distribute and collect refrigerant;

[0003] When producing microchannel heat exchangers, it is necessary to weld and install the fins and microchannel flat tubes. At present, the installation method is carried out manually, resulting in complex welding steps, low welding efficiency and inconvenient operation;

[0004] Therefore, the utility model designs a welding jig for air conditioner microchannel heat exchangers to solve the technical problems existing in the prior art. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a welding jig for air conditioner microchannel heat exchangers to solve the above technical problems.

[0006] The solution adopted by the utility model is: a welding jig for air conditioner microchannel heat exchangers, including a base, fins and microchannel flat tubes, characterized in that:

[0007] A number of groups of fixture supports are slidably connected to the base, a placement groove is provided on each group of the fixture supports, fins are arranged in the placement groove, and two groups of clamping plates cooperating with the fins are slidably connected to the placement groove;

[0008] At the bottom of each group of the fixture supports, a bidirectional lead screw threadedly connected with the clamping plate is rotatably connected, and a first handle is arranged at one end of the bidirectional lead screw;

[0009] Each group of the fixture supports is threadedly connected with a fastening screw cooperating with the base;

[0010] An alignment plate cooperating with the fins is slidably connected to the base, an adjusting screw is threadedly connected to the base, one end of the adjusting screw is rotatably connected to the alignment plate, and the other end is fixedly connected with a second handle;

[0011] A number of groups of mounting holes are provided on the fins, and microchannel flat tubes are arranged in the mounting holes.

[0012] Preferably, an auxiliary plate slidably connected to the base is arranged on the alignment plate, and the adjusting lead screw is rotatably connected to the auxiliary plate.

[0013] Preferably, two sets of guiding grooves are formed on the base, and the two sets of guiding grooves are slidably connected to the fixture support, and one set of fastening screws is provided and is matched with one of the sets of guiding grooves.

[0014] Preferably, anti-slip pads are provided on the two clamping plates.

[0015] Preferably, two sets of telescopic support seats are provided at the lower end of the base.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present application. Description of the Drawings

[0017] Figure 1 is one of the perspective views of the three-dimensional figure of the present utility model.

[0018] Figure 2 is one of the sectional perspective views of the three-dimensional figure of the present utility model.

[0019] Figure 3 is the second sectional perspective view of the three-dimensional figure of the present utility model.

[0020] Figure 4 is the third sectional perspective view of the three-dimensional figure of the present utility model.

[0021] Figure 5 is the fourth sectional perspective view of the three-dimensional figure of the present utility model.

[0022] Reference numerals: 1, base; 2, fin; 3, microchannel flat tube; 4, fixture support; 5, placement groove; 7, clamping plate; 8, bidirectional lead screw; 9, first handle; 10, fastening screw; 11, alignment plate; 12, adjusting screw; 13, second handle; 14, mounting hole; 16, auxiliary plate; 17, guiding groove; 18, telescopic support seat. Detailed Description of the Embodiments

[0023] Regarding the foregoing and other technical contents, features and effects of the present utility model, they will be clearly presented in the following detailed description in conjunction with the Figures 1-5 reference to the embodiments. The structural contents mentioned in the following embodiments are all with reference to the accompanying drawings of the specification.

[0024] The following will describe the exemplary embodiments of the present utility model with reference to the drawings.

[0025] Embodiment 1, an air conditioner microchannel heat exchanger welding fixture, comprising a base 1, fins 2 and microchannel flat tubes 3, characterized in that:

[0026] A number of fixture supports 4 are slidably connected to the base 1 described above. A placement groove 5 is provided in each of the number of fixture supports 4. A fin 2 is provided in the placement groove 5. Two sets of clamping plates 7 that cooperate with the fin 2 are slidably connected to the placement groove 5;

[0027] At the bottom of each of the number of fixture supports 4, a bidirectional lead screw 8 that is threadedly connected to the clamping plate 7 is rotatably connected. A first handle 9 is provided at one end of the bidirectional lead screw 8;

[0028] Each of the number of fixture supports 4 is threadedly connected with a fastening screw 10 that cooperates with the base 1;

[0029] An alignment plate 11 that cooperates with the fin 2 is slidably connected to the base 1 described above. An adjusting screw rod 12 is threadedly connected to the base 1. One end of the adjusting screw rod 12 is rotatably connected to the alignment plate 11, and the other end is fixedly connected with a second handle 13;

[0030] A number of mounting holes 14 are provided in the fin 2. A microchannel flat tube 3 is provided in each of the number of mounting holes 14;

[0031] Furthermore, an auxiliary plate 16 that is slidably connected to the base 1 is provided on the alignment plate 11. The adjusting lead screw is rotatably connected to the auxiliary plate 16.

[0032] During use, first install the fin 2 into the placement groove 5. By rotating the first handle 9, the bidirectional lead screw 8 is driven, so that the two sets of clamping plates 7 in the placement groove 5 approach the fin 2. Rotate the first handle 9 until the clamping plate 7 clamps the fin 2 on the fixture support 4, and place the fins 2 on the fixture support in sequence;

[0033] Then install the microchannel flat tubes 3 in sequence from bottom to top. When installing one layer of microchannel flat tubes 3, manual welding is carried out. The microchannel flat tube 3 passes through the mounting hole 14 provided on the fin 2, thereby forming a weld. Manual welding is carried out. When one layer is welded, install the next layer of microchannel flat tubes 3 until all the microchannel flat tubes 3 are welded to the fin 2;

[0034] During welding, by rotating the second handle 13, the adjusting screw rod 12 is driven to rotate, so that the alignment plate 11 moves. When installing the fin 2 in cooperation with the microchannel flat tube 3, under the action of the alignment plate 11, all the microchannel flat tubes 3 can be aligned during installation, and one end of all layers of microchannel flat tubes 3 is aligned to ensure the welding accuracy;

[0035] By rotating the second handle 13, the position of the alignment plate 11 can be adjusted, which is convenient for adjustment and operation;

[0036] When adjusting the fixture support 4, loosen the fastening screw 10 so that the fixture support 4 can slide on the side wall of the base 1, which is convenient for adjusting the distance between each group of fins 2. After adjustment, rotate the fastening screw 10 to lock the fixture support 4 on the base 1.

[0037] In some embodiments, two groups of guiding grooves 17 are formed on the base 1. The two groups of guiding grooves 17 are slidably connected to the fixture support 4. One set of fastening screws 10 is provided and is matched with one of the groups of guiding grooves 17.

[0038] During use, under the action of the guiding grooves 17, the movement of the fixture support 4 will be smoother. After adjustment, it is fixed and locked by rotating the fastening screw 10.

[0039] In some embodiments, anti-slip pads are provided on the two clamping plates 7.

[0040] In some embodiments, two sets of telescopic support seats 18 are provided at the lower end of the base 1.

[0041] During use, by adjusting the telescopic support seats 18, it can be applied to different welding heights, which is convenient for the operator to use, improves the comfort of welding. For welding positions lower than the bottom layer, there is no need to bend down for welding, and the welding accuracy is also improved from the side.

[0042] The above description is only for the purpose of illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various equivalent forms conforming to the idea of the present invention are within the protection scope of the present invention.

Claims

1. A welding fixture for an air-conditioning microchannel heat exchanger, comprising a base (1), fins (2) and microchannel flat tubes (3), characterized in that: The base (1) is slidably connected to an array of clamp supports (4), the array of clamp supports (4) is provided with a placement groove (5), a fin (2) is arranged in the placement groove (5), and the placement groove (5) is slidably connected to two groups of clamping plates (7) that cooperate with the fin (2); The bottom of the clamp support (4) is rotatably connected to a bidirectional lead screw (8) threadedly connected to the clamping plate (7), and one end of the bidirectional lead screw (8) is provided with a first handle (9); The clamp support (4) is threadedly connected to a fastening screw (10) that cooperates with the base (1); An alignment plate (11) cooperating with the fin (2) is slidably connected to the base (1), an adjusting screw (12) is threadedly connected to the base (1), one end of the adjusting screw (12) is rotatably connected to the alignment plate (11), and the other end is fixedly connected to a second handle (13); The fin (2) is provided with an array of mounting holes (14), and microchannel flat tubes (3) are arranged in the array of mounting holes (14).

2. The welding fixture for air conditioner microchannel heat exchanger according to claim 1, characterized in that: The alignment plate (11) is provided with an auxiliary plate (16) which is slidably connected to the base (1), and the adjustment screw is rotatably connected to the auxiliary plate (16).

3. The welding fixture for air conditioner microchannel heat exchanger according to claim 1, characterized in that: The base (1) is provided with two groups of guide grooves (17), the two groups of guide grooves (17) are slidably connected to the clamp support (4), and the fastening screws (10) are provided in one group, which cooperates with one group of guide grooves (17).

4. The welding fixture for air conditioner microchannel heat exchanger according to claim 1, characterized in that: Anti-slip pads are provided on the two groups of clamping plates (7).

5. The welding fixture for air conditioner microchannel heat exchanger according to claim 1, characterized in that: Two sets of retractable support seats (18) are provided at the lower end of the base (1).

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