Plasma welding apparatus for heat exchangers

Abstract

The utility model discloses a kind of plasma welding devices for heat exchanger, including workbench, the right top surface right end of the workbench is fixedly connected with two first mounting bracket, one the first mounting bracket inside is provided with first adjusting assembly, the first adjusting assembly is connected with plasma welder, the workbench top surface is fixedly connected with second mounting bracket, the second mounting bracket inside is provided with second adjusting assembly, the second adjusting assembly is connected with third motor, the third motor output shaft is fixedly connected with rotating plate, the workbench top surface is fixedly connected with support frame, the support frame top surface is provided with two compression components.The utility model is in use, by compression component to heat exchanger plate material is compressed, third motor drives rotating plate to rotate, by second adjusting assembly adjustment rotating plate's position, by first adjusting assembly drive L-shaped plate moves, so different size heat exchanger plate material can be welded.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a plasma welding device for heat exchangers. Background Technology

[0002] A heat exchanger is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements; it is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. Based on their operating process, they can be divided into three main categories: indirect-flow type, mixing type, and regenerative (or regenerative) type. Based on the compactness of their surfaces, they can be divided into compact and non-compact types. Welding equipment is required for welding during the production of heat exchangers.

[0003] Existing heat exchangers cannot be adjusted for various specifications of welded parts when performing plasma welding, thus making it impossible to weld heat exchangers of different specifications, resulting in low adaptability of the welding equipment. Utility Model Content

[0004] The purpose of this invention is to provide a plasma welding device for heat exchangers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plasma welding device for heat exchangers, comprising a worktable, two first mounting brackets symmetrically distributed and fixedly connected to the right end of the top right surface of the worktable, a first adjusting component being disposed inside one of the first mounting brackets, the first adjusting component being connected to a plasma welding machine, a second mounting bracket being fixedly connected to the left end of the top surface of the worktable, a second adjusting component being disposed inside the second mounting bracket, a third motor being connected to the second adjusting component, a rotating plate being fixedly connected to the output shaft of the third motor, a support frame being fixedly connected to the left edge of the top surface of the worktable, and two clamping components symmetrically distributed on the right end of the top surface of the support frame.

[0006] Preferably, the first adjustment component includes a first motor, a first threaded rod, and a first sliding frame. The first motor is fixedly connected to the right end of the inner surface of a first mounting frame. The right end of the first threaded rod is fixedly connected to the output shaft of the first motor. The left end of the first threaded rod is rotatably connected to the left side wall of the first mounting frame. The front end of the first sliding frame is threadedly connected to the first threaded rod. The first sliding frame is U-shaped. The plasma welding machine is fixedly connected to the middle of the top surface of the first sliding frame.

[0007] Preferably, the second adjustment component includes a second motor, a second threaded rod, and a second sliding frame. The second motor is fixedly connected to the front end of the inner surface of the second mounting frame. The front end of the second threaded rod is fixedly connected to the output shaft of the second motor. The rear end of the second threaded rod is rotatably connected to the left end of the rear side wall of the second mounting frame. The left end of the second sliding frame is threadedly connected to the second threaded rod. The second sliding frame is U-shaped. The third motor is fixedly connected to the top wall of the second sliding frame. The output shaft of the third motor passes through the second sliding frame.

[0008] Preferably, the clamping assembly includes an electric telescopic rod, a pressure sensor, and a pressure plate. The electric telescopic rod is fixedly connected to the right end of the top surface of the support frame. The telescopic end of the electric telescopic rod passes through the support frame and is fixedly connected to the pressure sensor. The pressure plate is fixedly connected to the bottom surface of the pressure sensor, and an anti-slip pad is fixedly connected to the bottom surface of the pressure plate.

[0009] Preferably, the first sliding frame has a first sliding rod slidably connected to the end away from the first threaded rod, and the two ends of the first sliding rod are fixedly connected to the left and right side walls of another first mounting frame.

[0010] Preferably, an L-shaped plate is fixedly connected to the middle of the top wall of the first sliding frame, and a fixing buckle is fixedly connected to the top of the left side of the L-shaped plate, with the plasma welding head being snapped into the inside of the fixing buckle.

[0011] Preferably, the second sliding frame has a second sliding rod slidably connected to the end away from the second threaded rod, and the two ends of the second sliding rod are fixedly connected to the right ends of the front and rear side walls of the second mounting frame.

[0012] Preferably, a control panel is fixedly connected to the left corner of the top surface of the workbench.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In use, this invention uses a clamping assembly to clamp the heat exchanger plates, a second adjusting assembly to move a rotating plate so that the welding head of the plasma welding machine is aligned with the welding position of the plate on the rotating plate surface, a first adjusting assembly to move an L-shaped plate, and the plasma welding machine's welding head to weld the plates. After one side is welded, a third motor drives the rotating plate to rotate 90 degrees, the second adjusting assembly adjusts the position of the rotating plate, and the first adjusting assembly moves the L-shaped plate, thus enabling the welding of heat exchanger plates of different sizes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention.

[0019] In the diagram: 1. Workbench; 2. First mounting bracket; 3. First adjusting assembly; 31. First motor; 32. First threaded rod; 33. First sliding frame; 4. Plasma welding machine; 5. Second mounting bracket; 6. Second adjusting assembly; 61. Second motor; 62. Second threaded rod; 63. Second sliding frame; 7. Third motor; 8. Rotating plate; 9. Support frame; 10. Clamping assembly; 101. Electric telescopic rod; 102. Pressure sensor; 103. Pressure plate; 11. First slide rod; 12. L-shaped plate; 13. Fixing buckle; 14. Second slide rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a plasma welding device for heat exchangers, including a worktable 1, two first mounting brackets 2 symmetrically distributed and bolted to the right end of the right top surface of the worktable 1, a first adjusting component 3 installed inside the first mounting bracket 2 located at the front end, a second mounting bracket 5 bolted to the left end of the top surface of the worktable 1, a second adjusting component 6 installed inside the second mounting bracket 5, a rotating plate 8 mounted on the output shaft of a third motor 7 via a coupling, a support frame 9 bolted to the left edge of the top surface of the worktable 1, and two clamping components 10 symmetrically distributed and installed on the right end of the top surface of the support frame 9.

[0022] The first adjustment assembly 3 includes a first motor 31, a first threaded rod 32, and a first sliding frame 33. The first motor 31 is bolted to the right end of the inner surface of the first mounting frame 2 located at the front end. The right end of the first threaded rod 32 is mounted on the output shaft of the first motor 31 via a coupling. The left end of the first threaded rod 32 is rotatably mounted on the left side wall of the first mounting frame 2 located at the front end via a bearing. The front end of the first sliding frame 33 is threadedly connected to the first threaded rod 32. The first sliding frame 33 is U-shaped. The plasma welding machine 4 is bolted to the middle of the top surface of the first sliding frame 33.

[0023] The second adjustment assembly 6 includes a second motor 61, a second threaded rod 62, and a second sliding frame 63. The second motor 61 is bolted to the front end of the inner surface of the second mounting frame 5. The front end of the second threaded rod 62 is mounted on the output shaft of the second motor 61 via a coupling. The rear end of the second threaded rod 62 is rotatably mounted on the left end of the rear side wall of the second mounting frame 5 via a bearing. The left end of the second sliding frame 63 is threadedly connected to the second threaded rod 62. The second sliding frame 63 is U-shaped. The third motor 7 is bolted to the top wall of the second sliding frame 63. The output shaft of the third motor 7 passes through the second sliding frame 63.

[0024] The clamping assembly 10 includes an electric telescopic rod 101, a pressure sensor 102, and a pressure plate 103. The electric telescopic rod 101 is bolted to the right end of the top surface of the support frame 9. The telescopic end of the electric telescopic rod 101 passes through the support frame 9 and is threadedly connected to the pressure sensor 102. The pressure plate 103 is bolted to the bottom surface of the pressure sensor 102, and an anti-slip pad is adhered to the bottom surface of the pressure plate 103.

[0025] The first sliding frame 33 is slidably connected to the first sliding rod 11 at the end away from the first threaded rod 32. The two ends of the first sliding rod 11 are installed on the left and right side walls of another first mounting frame 2 by bolts.

[0026] The right end of the L-shaped plate 12 is bolted to the middle of the top wall of the first sliding frame 33, and the fixing buckle 13 is bolted to the top of the left side of the L-shaped plate 12. The welding head of the plasma welding machine 4 is clamped inside the fixing buckle 13.

[0027] The second sliding bracket 63 is slidably connected to the second sliding rod 14 at one end away from the second threaded rod 62. The two ends of the second sliding rod 14 are installed on the right end of the front and rear side walls of the second mounting bracket 5 by bolts.

[0028] The control panel is bolted to the left corner of the top surface of the workbench 1. The control panel is electrically connected to the first motor 31, plasma welding machine 4, second motor 61, third motor 7, electric telescopic rod 101, and pressure sensor 102 via wires. The control panel, the first motor 31, plasma welding machine 4, second motor 61, third motor 7, electric telescopic rod 101, and pressure sensor 102 are all existing technologies, and their specific structures, working principles, and electrical connections will not be detailed here.

[0029] Working Principle: In use, the heat exchanger plate to be welded is placed on the rotating plate 8. The electric telescopic rod 101 is activated, causing the pressure plate 103 to move downwards, pressing the heat exchanger plate tightly. A pressure sensor 102 monitors the pressure to prevent excessive extension of the electric telescopic rod 101, which could damage the plate. The second motor 61 drives the second threaded rod 62 to rotate, causing the second sliding frame 63 to move the rotating plate 8, aligning the welding head of the plasma welding machine 4 with the welding position on the rotating plate 8. The first motor 31 drives the first threaded rod 32 to rotate, causing the first sliding frame 33 to move the L-shaped plate 12. The welding head of the plasma welding machine 4 then welds the plate. After one side is welded, the third motor 7 rotates the rotating plate 8 90 degrees. The position of the rotating plate 8 is adjusted by the second adjusting component 6, and the L-shaped plate 12 is moved by the first adjusting component 3. This allows for welding of heat exchanger plates of different sizes. This invention is convenient to use and has good performance.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma welding device for heat exchangers, comprising a worktable (1), characterized in that: The workbench (1) has two first mounting brackets (2) fixedly connected to the right end of the top right side in a symmetrical arrangement. Each first mounting bracket (2) has a first adjustment component (3) inside it. The first adjustment component (3) is connected to a plasma welding machine (4). The workbench (1) has a second mounting bracket (5) fixedly connected to the left end of the top side in a fixed arrangement. The second mounting bracket (5) has a second adjustment component (6) inside it. The second adjustment component (6) is connected to a third motor (7). The output shaft of the third motor (7) is fixedly connected to a rotating plate (8). The workbench (1) has a support frame (9) fixedly connected to the left edge of the top side in a fixed arrangement. The support frame (9) has two clamping components (10) symmetrically arranged on the right end of the top side in a fixed arrangement.

2. A plasma welding apparatus for heat exchangers as claimed in claim 1, wherein: The first adjustment component (3) includes a first motor (31), a first threaded rod (32), and a first sliding frame (33). The first motor (31) is fixedly connected to the right end of the inner surface of a first mounting frame (2). The right end of the first threaded rod (32) is fixedly connected to the output shaft of the first motor (31). The left end of the first threaded rod (32) is rotatably connected to the left side wall of a first mounting frame (2). The front end of the first sliding frame (33) is threadedly connected to the first threaded rod (32). The first sliding frame (33) is U-shaped. The plasma welding machine (4) is fixedly connected to the middle of the top surface of the first sliding frame (33).

3. A plasma welding apparatus for heat exchangers as defined in claim 1, wherein: The second adjustment component (6) includes a second motor (61), a second threaded rod (62), and a second sliding frame (63). The second motor (61) is fixedly connected to the front end of the inner surface of the second mounting frame (5). The front end of the second threaded rod (62) is fixedly connected to the output shaft of the second motor (61). The rear end of the second threaded rod (62) is rotatably connected to the left end of the rear side wall of the second mounting frame (5). The left end of the second sliding frame (63) is threadedly connected to the second threaded rod (62). The second sliding frame (63) is U-shaped. The third motor (7) is fixedly connected to the top wall of the second sliding frame (63). The output shaft of the third motor (7) passes through the second sliding frame (63).

4. A plasma welding apparatus for heat exchangers as defined in claim 1, wherein: The clamping assembly (10) includes an electric telescopic rod (101), a pressure sensor (102), and a pressure plate (103). The electric telescopic rod (101) is fixedly connected to the right end of the top surface of the support frame (9). The telescopic end of the electric telescopic rod (101) passes through the support frame (9) and is fixedly connected to the pressure sensor (102). The pressure plate (103) is fixedly connected to the bottom surface of the pressure sensor (102). An anti-slip pad is fixedly connected to the bottom surface of the pressure plate (103).

5. A plasma welding apparatus for heat exchangers as defined in claim 2, wherein: The first sliding frame (33) is slidably connected to the first sliding rod (11) at the end away from the first threaded rod (32), and the two ends of the first sliding rod (11) are fixedly connected to the left and right side walls of another first mounting frame (2).

6. A plasma welding apparatus for heat exchangers as defined in claim 2, wherein: An L-shaped plate (12) is fixedly connected to the middle of the top wall of the first sliding frame (33), and a fixing buckle (13) is fixedly connected to the top of the left side of the L-shaped plate (12). The welding head of the plasma welding machine (4) is snapped into the inside of the fixing buckle (13).

7. A plasma welding apparatus for heat exchangers as defined in claim 3, wherein: The second sliding frame (63) is slidably connected with a second sliding rod (14) at one end away from the second threaded rod (62), and the two ends of the second sliding rod (14) are fixedly connected to the right ends of the front and rear side walls of the second mounting frame (5).

8. A plasma welding apparatus for heat exchangers as defined in claim 1, wherein: The top surface of the workbench (1) is fixedly connected with a control panel at the left corner of the left end.

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