Welding equipment for plate-fin heat exchanger

Abstract

The utility model relates to the technical field of welding equipment, in particular to plate-fin heat exchanger welding equipment which comprises a bottom plate, a positive and negative tooth two-way lead screw is rotationally installed at the top of the bottom plate, and first internal thread blocks are connected to two sections of threaded rods, opposite in thread turning direction, of the positive and negative tooth two-way lead screw in a threaded and sleeved mode. Clamping plates are installed on the side faces of the first internal thread blocks, limiting grooves are formed in the opposite faces of the two clamping plates, and a plurality of openings communicating with the limiting grooves are formed in the bottoms of the clamping plates. The plurality of mounting strips move downwards to be inserted into the wave grooves of the fins, and the bottom ends of the mounting strips penetrate through the wave grooves and the openings of the fins, so that the welding gun heads are positioned in the wave grooves, and the welding gun heads are inserted into the wave grooves of the fins through the mounting strips. And the welding gun head can be conveniently inserted into the wave groove of the fin to weld the fin and the partition plate.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a plate-fin heat exchanger welding equipment. Background Art

[0002] After searching, it was found that the Chinese patent with application number 202122063315.9 disclosed "a welding device for plate-fin heat exchanger production, including a support platform, a first limit strip extending in the left-right direction is arranged at the front end of the support platform, a second limit strip extending in the front-back direction is arranged at the rear side of the support platform, a sliding assembly extending in the front-back direction is arranged on the right side of the second limit strip, a welding assembly is arranged on the upper end of the sliding assembly, a column is arranged on the front side of the first limit strip, a support rod is arranged on the rear side of the upper end of the column, and a telescopic assembly is vertically arranged in the middle of the support rod, A pressing plate extending horizontally in the left-right direction is arranged at the lower end of the telescopic assembly, two sponge strips adapted to the surface shape of the fin are arranged at the lower end of the pressing plate, and a push plate is arranged vertically in the left-right direction on the rear side of the column. "; However, when the welding device for producing the plate-fin heat exchanger is used to weld the fins and the partitions, due to the small size of the groove between the fins and the partitions, it is difficult for the welding equipment to extend into the wave groove of the fins to weld the fins and the partitions, and it is inconvenient to weld the fins and the partitions. Therefore, in order to solve such problems, a plate-fin heat exchanger welding device is proposed. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a plate-fin heat exchanger welding device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A plate-fin heat exchanger welding device comprises a base plate, a forward and reverse bidirectional screw rod is rotatably installed on the top of the base plate, a first internal thread block is threadedly sleeved on two sections of the threaded rod with opposite threads, a clamping plate is installed on the side of the first internal thread block, limiting grooves are provided on the opposite surfaces of the two clamping plates, a plurality of openings connected to the limiting grooves are provided at the bottom of the clamping plates, a limiting mechanism for limiting the first internal thread block is provided on the top of the base plate, a strip plate is connected to the top of the base plate through a height adjustment mechanism, a plurality of mounting strips corresponding to the opening positions are installed at the bottom of the strip plate, an electric telescopic rod is installed at the bottom of the side of the mounting strip, and a welding gun head for welding fins and partitions is installed at the end of the piston rod of the electric telescopic rod.

[0006] Preferably, the limiting mechanism includes a first fixed plate and a second fixed plate symmetrically installed on the top of the base plate, a positive and negative bidirectional screw rod is rotatably installed between the first fixed plate and the second fixed plate, a first sliding rod is installed between the first fixed plate and the second fixed plate, a first sliding sleeve is installed at the bottom of the first internal thread block, and the first sliding sleeve is slidably connected to the first sliding rod.

[0007] Preferably, a first motor is installed on a side of the first fixing plate away from the forward and reverse bidirectional screw rod, and an output shaft of the first motor passes through the first fixing plate and is connected to the forward and reverse bidirectional screw rod.

[0008] Preferably, a first bearing is installed on one side of the second fixing plate close to the forward and reverse bidirectional screw rod, and the end of the forward and reverse bidirectional screw rod is installed on the inner ring of the first bearing.

[0009] Preferably, a connecting plate is installed on the side of the first internal thread block, and the clamping plate is installed on the side of the connecting plate.

[0010] Preferably, the height adjustment mechanism includes a second motor installed on the top of the base plate, the output shaft of the second motor is connected to a screw rod, a second internal thread block is threadedly sleeved on the screw rod, the strip plate is installed on the side of the second internal thread block, a second slide rod is installed on the top of the base plate, a top plate is installed on the top of the second slide rod, a second sleeve is installed on the side of the second internal thread block away from the strip plate, and the second sleeve is slidably sleeved on the second slide rod.

[0011] Preferably, a second bearing is installed at the bottom of the top plate, the top end of the screw rod is installed on the inner ring of the second bearing, and the bottom plate is symmetrically provided with two groups of mounting holes.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1: In the utility model, a plurality of mounting strips can be inserted into the wave groove of the fin by moving downward, and the bottom end of the mounting strip passes through the wave groove and the opening of the fin, so that the welding gun head is located in the wave groove. The welding gun head can be inserted into the wave groove of the fin to facilitate welding the fin and the partition.

[0014] 2: In the utility model, the second internal thread block moves upward, thereby causing the strip plate and the mounting strip to move downward, thereby causing the welding gun head to move upward. When the welding gun head moves upward, the partition and the fin are welded from low to high. The partition and the fin can be welded from low to high, and the welding process of the partition and the fin can be completed at one time, thereby improving the welding efficiency of the fin and the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a plate-fin heat exchanger welding device proposed by the utility model from a first perspective;

[0016] Figure 2 This is a structural schematic diagram of a plate-fin heat exchanger welding device proposed by the utility model from a second perspective;

[0017] Figure 3 A schematic structural diagram of a plate-fin heat exchanger welding device proposed by the utility model from a third perspective;

[0018] Figure 4 A schematic diagram of the connection between a mounting bar and an electric telescopic rod of a plate-fin heat exchanger welding device proposed in the utility model;

[0019] Figure 5 The utility model provides a schematic structural diagram of a clamping plate of a plate-fin heat exchanger welding device.

[0020] In the figure: 1, bottom plate; 2, first fixed plate; 3, second fixed plate; 4, first motor; 5, first bearing; 6, positive and negative bidirectional screw rod; 7, first internal thread block; 8, connecting plate; 9, first sleeve; 10, first slide rod; 11, clamping plate; 12, limit groove; 13, opening; 14, mounting hole; 15, second motor; 16, screw rod; 17, top plate; 18, second bearing; 19, second slide rod; 20, second sleeve; 21, second internal thread block; 22, strip plate; 23, mounting strip; 24, electric telescopic rod; 25, welding gun head. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 A plate-fin heat exchanger welding device comprises a bottom plate 1, a bidirectional screw rod 6 with positive and negative threads is rotatably installed on the top of the bottom plate 1, and a first internal thread block 7 is threadedly sleeved on the two threaded rods with opposite threads of the two sections of the bidirectional screw rod 6, and a clamping plate 11 is installed on the side of the first internal thread block 7, and the opposite surfaces of the two clamping plates 11 are provided with limiting grooves 12, and the bottom of the clamping plate 11 is provided with a plurality of openings 13 connected with the limiting grooves 12, and a limiting mechanism for limiting the first internal thread block 7 is provided on the top of the bottom plate 1, and a strip plate 22 is connected to the top of the bottom plate 1 through a height adjustment mechanism, and a plurality of mounting strips 23 corresponding to the positions of the openings 13 are installed at the bottom of the strip plate 22, and an electric telescopic rod 24 is installed at the bottom of the side of the mounting strip 23, and a welding gun head 25 for welding fins and partitions is installed at the end of the piston rod of the electric telescopic rod 24.

[0023] As a technical optimization scheme of the utility model, the limiting mechanism includes a first fixed plate 2 and a second fixed plate 3 symmetrically installed on the top of the base plate 1, a positive and negative bidirectional screw rod 6 is rotatably installed between the first fixed plate 2 and the second fixed plate 3, a first slide rod 10 is installed between the first fixed plate 2 and the second fixed plate 3, a first sleeve 9 is installed at the bottom of the first internal thread block 7, and the first sleeve 9 is slidably connected to the first slide rod 10. Through the coordinated use of the first sleeve 9 and the first slide rod 10, the first internal thread block 7 can be limited, so that the first internal thread block 7 can make a linear motion on the positive and negative bidirectional screw rod 6.

[0024] As a technical optimization solution of the utility model, a first motor 4 is installed on the side of the first fixed plate 2 away from the forward and reverse bidirectional screw rod 6, and the output shaft of the first motor 4 passes through the first fixed plate 2 and is connected to the forward and reverse bidirectional screw rod 6.

[0025] As a technical optimization solution of the utility model, a first bearing 5 is installed on the side of the second fixed plate 3 close to the forward and reverse bidirectional screw rod 6, and the end of the forward and reverse bidirectional screw rod 6 is installed on the inner ring of the first bearing 5. The first bearing 5 can provide support and guidance for the forward and reverse bidirectional screw rod 6, thereby improving the stability of the forward and reverse bidirectional screw rod 6 during rotation.

[0026] As a technical optimization solution of the utility model, a connecting plate 8 is installed on the side of the first internal thread block 7, and a clamping plate 11 is installed on the side of the connecting plate 8. The connecting plate 8 can facilitate the connection between the clamping plate 11 and the first internal thread block 7.

[0027] As a technical optimization scheme of the utility model, the height adjustment mechanism includes a second motor 15 installed on the top of the base plate 1, the output shaft of the second motor 15 is connected to a screw rod 16, a second internal thread block 21 is threadedly sleeved on the screw rod 16, a strip plate 22 is installed on the side of the second internal thread block 21, a second slide rod 19 is installed on the top of the base plate 1, a top plate 17 is installed on the top of the second slide rod 19, a second sleeve 20 is installed on the side of the second internal thread block 21 away from the strip plate 22, and the second sleeve 20 is slidably sleeved on the second slide rod 19. Through the coordinated use of the second sleeve 20 and the second slide rod 19, a limit can be provided for the second internal thread block 21, so that the second internal thread block 21 can make a straight line motion up and down on the screw rod 16.

[0028] As a technical optimization solution of the utility model, a second bearing 18 is installed at the bottom of the top plate 17, the top of the screw rod 16 is installed on the inner ring of the second bearing 18, and the bottom plate 1 is symmetrically provided with two groups of mounting holes 14. The mounting holes 14 can facilitate the fixation of the bottom plate 1, thereby facilitating the installation and fixation of the device.

[0029] When the utility model is in use, when it is necessary to weld the fins and the partitions together, first, the two partitions are respectively placed in the limiting grooves 12 opened on the sides of the two clamping plates 11, and the first motor 4 is started. The output shaft of the first motor 4 drives the forward and reverse bidirectional screw 6 to rotate. The forward and reverse bidirectional screw 6 rotates so that the two first internal thread blocks 7 move closer to each other on the forward and reverse bidirectional screw 6. The two first internal thread blocks 7 move closer to each other, which can drive the two clamping plates 11 to move closer to each other until the distance between the partitions in the two limiting grooves 12 reaches a preset distance, which makes the distance between the two partitions greater than the thickness of the fins. The fins that need to be welded together with the partitions are inserted between the two partitions, and the bottom ends of the fins are in contact with the inner bottom walls of the two limiting grooves 12. The first motor 4 is started again to make the two clamping plates 11 move closer to each other, and then the two partitions move closer to each other until the two sides of the fins contact the two partitions and stop.

[0030] At this time, the second motor 15 is started, and the output shaft of the second motor 15 drives the screw rod 16 to rotate. The rotation of the screw rod 16 causes the second internal thread block 21 to move downward. The downward movement of the second internal thread block 21 can drive the strip plate 22 to move downward. The downward movement of the strip plate 22 can cause the plurality of mounting strips 23 to move downward. The plurality of mounting strips 23 can be inserted into the wave groove of the fin by moving downward, and the bottom end of the mounting strip 23 passes through the wave groove of the fin and the opening 13, so that the welding gun head 25 is located in the wave groove. The welding gun head 25 is inserted into the wave groove of the fin through the mounting strip 23, which can facilitate the insertion of the welding gun head 25 into the wave groove of the fin to weld the fin and the partition, and the electric telescopic rod 2 is started. 4. The output shaft of the electric telescopic rod 24 can drive the welding gun head 25 to move toward the contact point between the fin and the partition until the welding gun head 25 reaches the preset position and stops. At this time, the welding gun head 25 is started to weld the partition and the fin, so that the partition and the fin are welded together, and the second motor 15 is started at the same time to make the second internal thread block 21 move upward, and then the strip plate 22 and the mounting strip 23 move downward, and then the welding gun head 25 moves upward. When the welding gun head 25 moves upward, the partition and the fin are welded from low to high, and the welding of the partition and the fin can be completed from low to high. The welding process of the partition and the fin can be completed at one time, thereby improving the welding efficiency of the fin and the partition.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plate-fin heat exchanger welding device, comprising a bottom plate (1), characterized in that: A forward and reverse bidirectional screw rod (6) is rotatably mounted on the top of the base plate (1); the first internal thread block (7) is threadedly sleeved on the two threaded rods with opposite thread rotation directions of the forward and reverse bidirectional screw rod (6); a clamping plate (11) is mounted on the side of the first internal thread block (7); the opposing surfaces of the two clamping plates (11) are provided with limiting grooves (12); the bottom of the clamping plate (11) is provided with a plurality of openings (13) connected to the limiting grooves (12); a limiting mechanism for limiting the first internal thread block (7) is arranged on the top of the base plate (1); a strip plate (22) is connected to the top of the base plate (1) through a height adjustment mechanism; a plurality of mounting strips (23) corresponding to the positions of the openings (13) are mounted on the bottom of the strip plate (22); an electric telescopic rod (24) is mounted on the bottom of the side of the mounting strip (23); a welding gun head (25) for welding the fin and the partition is mounted at the end of the piston rod of the electric telescopic rod (24).

2. A plate-fin heat exchanger welding device according to claim 1, characterized in that: The limiting mechanism comprises a first fixing plate (2) and a second fixing plate (3) symmetrically mounted on the top of the base plate (1); a forward and reverse bidirectional screw rod (6) is rotatably mounted between the first fixing plate (2) and the second fixing plate (3); a first sliding rod (10) is mounted between the first fixing plate (2) and the second fixing plate (3); a first sliding sleeve (9) is mounted at the bottom of the first internal thread block (7); and the first sliding sleeve (9) is slidably sleeved on the first sliding rod (10).

3. A plate-fin heat exchanger welding device according to claim 2, characterized in that: A first motor (4) is installed on the side of the first fixing plate (2) away from the forward and reverse bidirectional screw rod (6); an output shaft of the first motor (4) passes through the first fixing plate (2) and is connected to the forward and reverse bidirectional screw rod (6).

4. A plate-fin heat exchanger welding device according to claim 2, characterized in that: A first bearing (5) is installed on one side of the second fixing plate (3) close to the forward and reverse bidirectional screw rod (6), and the end of the forward and reverse bidirectional screw rod (6) is installed on the inner ring of the first bearing (5).

5. The plate-fin heat exchanger welding equipment according to claim 1, characterized in that: A connecting plate (8) is installed on the side of the first internal thread block (7), and a clamping plate (11) is installed on the side of the connecting plate (8).

6. The plate-fin heat exchanger welding equipment according to claim 1, characterized in that: The height adjustment mechanism comprises a second motor (15) mounted on the top of the base plate (1), the output shaft of the second motor (15) is connected to a screw rod (16), a second internal thread block (21) is threadedly sleeved on the screw rod (16), a strip plate (22) is mounted on the side of the second internal thread block (21), a second slide bar (19) is mounted on the top of the base plate (1), a top plate (17) is mounted on the top of the second slide bar (19), a second slide sleeve (20) is mounted on the side of the second internal thread block (21) away from the strip plate (22), and the second slide sleeve (20) is slidably sleeved on the second slide bar (19).

7. The plate-fin heat exchanger welding equipment according to claim 6, characterized in that: A second bearing (18) is installed at the bottom of the top plate (17), the top end of the screw rod (16) is installed on the inner ring of the second bearing (18), and the bottom plate (1) is symmetrically provided with two groups of mounting holes (14).

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