Flash tank connecting pipe positioning and welding device

Abstract

The utility model discloses a positioning and welding device for a connecting pipe of a flash tank, relates to the technical field of tools for processing the flash tank, and aims to solve the problems of uneven welding quality and time and labor waste caused by lack of auxiliary positioning for an air inlet pipe and an air outlet pipe when the air inlet pipe and the air outlet pipe of the existing flash tank are welded. Comprising a fixed base, a positioning support and a clamping support, guide columns are further arranged on the fixed base, the positioning support and the clamping support are connected to the two sets of guide columns in a sliding mode, the positioning support is connected with the clamping support through a clamping cylinder, and a positioning guide head is further arranged on the positioning support; the clamping support is connected with a fixing clamp. A to-be-welded flash tank is placed in the mounting groove of the fixed base and matched with the positioning guide head on the positioning support, a worker can mount one end of each of an air inlet pipe and an air outlet pipe to be welded on the positioning guide head, and the other end of each of the air inlet pipe and the air outlet pipe is connected with a flanging hole in an end socket of the flash tank, so that the worker can quickly mount the air inlet pipe and the air outlet pipe; and subsequent welding operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling for flash tank processing, in particular to a flash tank pipe positioning welding device. Background Art

[0002] The flash tank of the air conditioner mainly evaporates the liquid refrigerant in the refrigeration system to avoid excessive liquid refrigerant and insufficient operating pressure of the refrigeration system. The refrigerant enters the separation chamber through the air inlet of the flash tank, and the liquid refrigerant is evaporated and gasified through the internal evaporation pipeline. The gasified refrigerant then flows back into the system pipeline through the air outlet.

[0003] Since the separation chamber and the inlet and outlet pipes are made of different materials, brazing is required for welding. However, during the processing of the flash tank, there is a lack of auxiliary tooling for the inlet and outlet pipes. Workers are often required to hold the air pipes while welding, resulting in uneven welding quality and increasing the difficulty of the work.

[0004] In order to achieve efficient welding, our company has proposed a flash tank pipe positioning welding device.

[0005] Therefore, the present application provides a flash tank pipe positioning welding device to meet the needs. Utility Model Content

[0006] The purpose of the present application is to provide a flash tank pipe positioning welding device, which aims to solve the problem that when welding the inlet and outlet pipes of the existing flash tank, there is a lack of auxiliary positioning of the inlet and outlet pipes, resulting in uneven welding quality and time-consuming and labor-intensive welding.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a flash tank pipe positioning welding device, comprising a fixed base, a positioning bracket and a clamping bracket, the fixed base is provided with a mounting groove for placing the flash tank, the fixed base is also provided with a guide column, and the guide column is provided with two groups;

[0008] The two groups of guide pillars are slidably connected with the positioning bracket and the clamping bracket in sequence from top to bottom, and the positioning bracket is provided with a limiting bolt for limiting the position between the guide pillars. The positioning bracket is connected with the clamping bracket through a clamping cylinder, and the positioning bracket is also provided with a positioning guide head for installing the air inlet pipe and the air outlet pipe; the flash tank to be welded is placed in the installation groove of the fixed base, and with the positioning guide head on the positioning bracket, the staff can install one end of the air inlet pipe and the air outlet pipe to be welded on the positioning guide head, and the other end is connected with the flange hole on the flash tank head, so that the staff can quickly install the air inlet pipe and the air outlet pipe, which is convenient for subsequent welding operations;

[0009] A fixed clamp for pressing and limiting the intake pipe and the outlet pipe is connected to the clamping bracket, and the fixed clamp corresponds to the clamping bracket in position.

[0010] Preferably, the positioning bracket further includes a sliding plate and a positioning plate. The sliding plate is slidably connected to the two sets of guide posts, and a positioning cylinder is further provided between the bottom of the sliding plate and the fixed base. The positioning plate is installed on the sliding plate and is perpendicular to the sliding plate. The two sets of positioning guide heads are installed on the positioning plate.

[0011] Preferably, the clamping bracket includes a slider and a mounting plate. There are two sets of sliders, which are respectively slidably connected to the two sets of guide posts. The two sets of sliders are connected by a connecting plate, and the mounting plate connected to the fixed clamp is further provided on the two sets of sliders.

[0012] Preferably, the fixed clamp includes a mounting seat and a pressing block. There are two sets of mounting seats, which are installed on the clamping bracket. The mounting seat is connected with the pressing block for pressing and limiting the intake pipe and the outlet pipe through a connecting rod. An arc surface matching the sizes of the intake pipe and the outlet pipe is opened at the bottom of the pressing block, and the two sets of pressing blocks correspond to the two sets of positioning guide heads in position. The clamping bracket is arranged on the guide post and used in cooperation with the fixed clamp, so that the pressing block on the fixed clamp can press and limit the intake pipe and the outlet pipe installed on the positioning guide head, ensuring the consistency of the assembly height and angle of the connecting pipe.

[0013] Preferably, the flash evaporation tank further includes a head and a cavity. The head is connected to the cavity, and a flanging hole for welding the intake pipe and the outlet pipe is further provided on the head.

[0014] Preferably, a nitrogen filling hole is further opened on the fixed base. One end of the nitrogen filling hole is opened on the side surface of the fixed base, and the other end of the nitrogen filling hole is communicated with the installation groove and is communicated with the cavity. By connecting a nitrogen gas source through the nitrogen gas hole, the inside of the flash evaporation tank can be filled with nitrogen for protection, realizing rapid assembly and welding operations.

[0015] In summary, the technical effects and advantages of the present utility model:

[0016] In the present utility model, the flash evaporation tank to be welded is placed in the installation groove of the fixed base, and in cooperation with the positioning guide head on the positioning bracket, the staff can install one end of the intake pipe and the outlet pipe to be welded on the positioning guide head, and the other end is connected to the flanging hole on the head of the flash evaporation tank, enabling the staff to quickly install the intake pipe and the outlet pipe and facilitating subsequent welding operations.

[0017] In the present utility model, a clamping bracket is provided on the guide post and used in cooperation with a fixed fixture, so that the pressing block on the fixed fixture can press and limit the air inlet pipe and the air outlet pipe installed on the positioning guide head, ensuring the consistency of the assembly height and angle of the connecting pipe. At the same time, the nitrogen gas source can be connected through the nitrogen gas hole to fill nitrogen into the flash evaporation tank for protection, realizing rapid assembly and welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 is a structural schematic diagram of the present utility model;

[0020] Figure 2 is an explosion Figure 1 ;

[0021] Figure 3 is an explosion Figure 2 ;

[0022] Figure 4 is an exploded view of the clamping bracket and the fixed fixture of the present utility model;

[0023] Figure 5 is an exploded view of the positioning bracket of the present utility model;

[0024] Figure 6 is a schematic diagram of the nitrogen filling hole structure of the present utility model.

[0025] In the figure: 1, fixed base; 11, nitrogen filling hole; 12, installation groove;

[0026] 2, guide post;

[0027] 3, positioning bracket; 31, sliding plate; 32, positioning plate; 33, positioning guide head;

[0028] 4, positioning cylinder;

[0029] 5, clamping bracket; 51, slider; 52, mounting plate; 53, connecting plate;

[0030] 6, fixed fixture; 61, mounting seat; 62, connecting rod; 63, pressing block;

[0031] 7, flash evaporation tank; 71, air inlet pipe; 72, air outlet pipe; 73, head; 74, cavity;

[0032] 8, clamping cylinder. Detailed implementation mode

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0034] Reference Figures 1-6 A flash evaporation tank pipe connection positioning and welding device as shown, including a fixed base 1, a positioning bracket 3 and a clamping bracket 5. An installation groove 12 for placing the flash evaporation tank 7 is opened on the fixed base 1. Two guide columns 2 are also provided on the fixed base 1. There are two groups of the guide columns 2; the two groups of guide columns 2 are symmetrically arranged on the fixed base 1 with the longitudinal section of the installation groove 12 as the boundary.

[0035] The positioning bracket 3 and the clamping bracket 5 are sequentially and slidably connected to the two groups of guide columns 2 from bottom to top. The clamping bracket 5 is arranged above the positioning bracket 3. A limit bolt for limiting between the positioning bracket 3 and the guide column 2 is provided on the positioning bracket 3. The positioning bracket 3 is connected to the clamping bracket 5 through a clamping cylinder 8. The clamping cylinder 8 uses an electric push rod. A positioning guide head 33 for installing the inlet pipe 71 and the outlet pipe 72 is also provided on the positioning bracket 3.

[0036] As Figure 4 shown, the positioning bracket 3 further includes a sliding plate 31 and a positioning plate 32. The sliding plate 31 is slidably connected to the two groups of guide columns 2. A positioning cylinder 4 is also provided between the bottom of the sliding plate 31 and the fixed base 1. The positioning cylinder 4 uses an electric push rod. The positioning plate 32 is installed on the sliding plate 31 and is perpendicular to the sliding plate 31. The two groups of positioning guide heads 33 are installed on the positioning plate 32.

[0037] The clamping bracket 5 includes two sliders 51 and a mounting plate 52. The two sliders 51 are respectively slidably connected to the two groups of guide columns 2. The two sliders 51 are connected through a connecting plate 53. The mounting plate 52 connected to the fixed fixture 6 is also provided on the two sliders 51.

[0038] A fixed fixture 6 for pressing and limiting the inlet pipe 71 and the outlet pipe 72 is connected to the clamping bracket 5. The fixed fixture 6 corresponds to the position of the clamping bracket 5.

[0039] As Figure 5As shown, the fixed fixture 6 includes a mounting base 61 and a pressing block 63. There are two sets of the mounting bases 61, which are mounted on the clamping bracket 5. The mounting base 61 is connected by a connecting rod 62 to the pressing block 63 that presses and positions the intake pipe 71 and the outlet pipe 72. The bottom of the pressing block 63 is provided with an arc surface matching the sizes of the intake pipe 71 and the outlet pipe 72, and the two sets of pressing blocks 63 correspond to the positions of the two sets of positioning and guiding heads 33. When in use, after the intake pipe 71 and the outlet pipe 72 are mounted on the positioning and guiding heads 33, the pressing block 63 moves downward, capable of pressing and positioning the intake pipe 71 and the outlet pipe 72.

[0040] The flash evaporation tank 7 further includes a head 73 and a cavity 74. The head 73 is connected to the cavity 74, and the head 73 is further provided with flanging holes for welding the intake pipe 71 and the outlet pipe 72.

[0041] As Figure 6 shown, the fixed base 1 is further provided with a nitrogen filling hole 11. One end of the nitrogen filling hole 11 is opened on the side surface of the fixed base 1, and the other end of the nitrogen filling hole 11 communicates with the mounting groove 12 and also communicates with the cavity 74. An inert gas is introduced into the cavity 74 to make the welding safer.

[0042] The working principle of this utility model: During assembly, the vertical guide posts 2 are assembled on the fixed base 1, the positioning cylinder 4 is installed between the two sets of guide posts 2, the slide plate 31 on the positioning bracket 3 is sleeved on the guide posts 2, and at the same time, the bottom of the slide plate 31 is connected to the telescopic end of the positioning cylinder 4. The positioning plate 32 is vertically assembled with the slide plate 31, and the positioning and guiding head 33 is installed on the positioning plate 32; the two sets of sliders 51 of the clamping bracket 5 are respectively sleeved on the two sets of guide posts 2, and the two sets of sliders 51 are connected by a connecting plate 53. A clamping cylinder 8 is installed between the connecting plate 53 and the slide plate 31. When the clamping cylinder 8 expands and contracts, it can drive the clamping bracket 5 to slide on the guide posts 2. Then, the mounting base 61 of the fixed fixture 6 is installed on the mounting plate 52, and the pressing block 63 is connected to the mounting base 61 through a connecting rod 62. The arc surface of the pressing block 63 corresponds to the position of the positioning and guiding head 33, that is, the pressing block 63 is located directly above the positioning and guiding head 33. The nitrogen filling hole 11 is communicated with an external nitrogen gas source to complete the assembly of this device.

[0043] In use, align the cavity 74 of the flash tank 7 with the mounting groove 12 and place it. Install the head 73 on the flash tank 7. Connect one ends of the inlet pipe 71 and the outlet pipe 72 to the flanging holes on the head 73, and sleeve the other ends on the positioning guide head 33. Control the clamping cylinder 8 to work and contract, drive the clamping bracket 5 to slide downward on the guide post 2, and at the same time drive the fixed fixture 6 to move downward. The arc surface on the pressing block 63 presses and limits the ends of the inlet pipe 71 and the outlet pipe 72 to ensure the consistency of the assembly height and angle of the inlet pipe 71 and the outlet pipe 72. At the same time, start the external nitrogen source and fill the inside of the cavity 74 of the flash tank 7 with nitrogen through the nitrogen filling hole 11 to achieve rapid assembly and welding operations.

[0044] The electromechanical connection involved in the present utility model is a commonly used means adopted by those skilled in the art and can obtain technical inspiration through a limited number of tests, belonging to common general knowledge.

[0045] The components not described in detail in this article are prior art.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A flash tank pipe positioning welding device, characterized in that: It comprises a fixed base (1), a positioning bracket (3) and a clamping bracket (5), wherein the fixed base (1) is provided with a mounting groove (12) for placing a flash tank (7), and the fixed base (1) is also provided with a guide column (2), wherein the guide column (2) is provided in two groups; The two groups of guide pillars (2) are slidably connected with the positioning bracket (3) and the clamping bracket (5) in sequence from top to bottom, the positioning bracket (3) is provided with a limiting bolt for limiting the position between the guide pillars (2), the positioning bracket (3) is connected to the clamping bracket (5) via a clamping cylinder (8), and the positioning bracket (3) is also provided with a positioning guide head (33) for installing an air inlet pipe (71) and an air outlet pipe (72); The clamping bracket (5) is connected to a fixing fixture (6) for pressing and limiting the air inlet pipe (71) and the air outlet pipe (72), and the fixing fixture (6) corresponds to the position of the clamping bracket (5).

2. A flash tank pipe positioning welding device according to claim 1, characterized in that: The positioning bracket (3) further comprises a slide plate (31) and a positioning plate (32); the slide plate (31) is slidably connected to the two groups of guide pillars (2); a positioning cylinder (4) is further provided between the bottom of the slide plate (31) and the fixed base (1); the positioning plate (32) is mounted on the slide plate (31) and is arranged perpendicular to the slide plate (31); and the two groups of positioning guide heads (33) are mounted on the positioning plate (32).

3. A flash tank pipe positioning welding device according to claim 1, characterized in that: The clamping bracket (5) comprises a slider (51) and a mounting plate (52). The slider (51) is provided in two groups and is slidably connected to two groups of guide pillars (2) respectively. The two groups of sliders (51) are connected via a connecting plate (53). The two groups of sliders (51) are also provided with the mounting plate (52) connected to the fixing fixture (6).

4. A flash tank pipe positioning welding device according to claim 1 or 3, characterized in that: The fixing fixture (6) comprises a mounting seat (61) and a pressing block (63). The mounting seat (61) is provided with two groups and is mounted on the clamping bracket (5). The mounting seat (61) is connected to the pressing block (63) for pressing and limiting the air inlet pipe (71) and the air outlet pipe (72) via a connecting rod (62). The bottom of the pressing block (63) is provided with an arc surface matching the size of the air inlet pipe (71) and the air outlet pipe (72), and the two groups of pressing blocks (63) correspond to the positions of the two groups of positioning guide heads (33).

5. A flash tank pipe positioning welding device according to claim 1, characterized in that: The flash tank (7) further comprises a sealing head (73) and a cavity (74), wherein the sealing head (73) is connected to the cavity (74), and the sealing head (73) is also provided with a flange hole for welding the air inlet pipe (71) and the air outlet pipe (72).

6. A flash tank pipe positioning welding device according to claim 5, characterized in that: A nitrogen filling hole (11) is also provided on the fixed base (1), one end of the nitrogen filling hole (11) is provided on a side surface of the fixed base (1), and the other end of the nitrogen filling hole (11) is communicated with the mounting groove (12) and with the cavity (74).

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