CN215146134U

CN215146134U - Welding fixture for pipeline assembly

Info

Publication number: CN215146134U
Application number: CN202120387266.1U
Authority: CN
Inventors: 陶勇; 李敏; 俞孟春; 王帆
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Hefei Electric Appliances Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Hefei Electric Appliances Co Ltd
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2021-12-14
Anticipated expiration: 2031-02-19

Abstract

The utility model relates to a welding jig of pipeline subassembly, pipeline subassembly belong to the partial structure of air conditioner evaporimeter and include return bend and sealing cap at least, welding jig include the base, establish the locating support on the base and establish on the base and with the spacing part of locating support phase separation, wherein, spacing part can hold and fix a position the sealing cap for the locating support can support the return bend and force the return bend and peg graft or dock with the sealing cap. The welding fixture for the pipeline assembly solves the problems that a large number of operators are needed for welding operation, the labor intensity of the operators is high, and the operators are easily scalded in the welding process.

Description

Welding fixture for pipeline assembly

Technical Field

The utility model belongs to the technical field of the pipeline welding, concretely relates to welding jig of pipeline subassembly.

Background

An air conditioner evaporator is one type of evaporator. The air conditioner evaporator is used for achieving the purpose of refrigeration by utilizing the fact that liquid low-temperature refrigerant is easy to evaporate under low pressure, is converted into steam and absorbs heat of cooled media.

The pipeline assembly is one of the main structures of the air-conditioning evaporator and mainly comprises an elbow, a sealing cap welded on the elbow and a fluorine injection nozzle welded on the sealing cap. When the elbow pipe and the sealing cap are welded, one operator needs to maintain the elbow pipe and the sealing cap in a splicing or butt joint state through pliers, and then another operator welds the elbow pipe and the sealing cap. This approach not only results in a large number of operators required for the welding operation, which is labor intensive, but also the operators are easily scalded during the welding process.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned whole or partial problem, the utility model aims to provide a welding jig of pipeline subassembly for it is more to solve the required operator of welding operation, and operator's high in labor strength just is scalded problem in welding process easily.

According to the utility model discloses an aspect provides a welding jig of pipeline subassembly, the pipeline subassembly belongs to the partial structure of air conditioner evaporimeter and includes return bend and sealing cap at least, welding jig includes the base, establishes locating support on the base with establish on the base and with the spacing part of locating support phase separation, wherein, spacing part can be right the sealing cap holds and fixes a position, makes the locating support can support the return bend is forced the return bend with the sealing cap pegs graft or docks.

Further, the positioning support comprises a vertical rod arranged on the base and a horizontal rod fixedly or adjustably arranged on the vertical rod.

Further, the number of the positioning brackets is multiple, and the positioning brackets are arranged on the base at intervals.

Furthermore, the positioning support further comprises a sleeve body which is sleeved on the vertical rod and is used for bearing the horizontal rod, and an adjusting bolt which can be screwed into the sleeve body and can fix the sleeve body on the vertical rod.

Further, each positioning bracket comprises two horizontal rods which are spaced along the circumference of the sleeve body and are in the same horizontal plane but are not collinear.

Further, the welding fixture further comprises a first vertical baffle arranged on the base and a second vertical baffle arranged on the base and vertically connected with the first vertical baffle.

Further, the welding fixture further comprises a third vertical baffle plate which is arranged on the base and is vertically connected with the second vertical baffle plate.

Further, the stopper has a tapered cavity capable of partially receiving the cap.

Furthermore, the welding fixture further comprises a gas injection mechanism connected with the limiting part, and the gas injection mechanism can inject welding shielding gas into the sealing cap and the bent pipe in sequence through the limiting part after the sealing cap and the bent pipe are butted or spliced.

Further, the welding fixture further comprises a semi-finished product storage component arranged on the base and/or a finished product storage component arranged on the base.

Furthermore, the welding fixture further comprises an auxiliary sleeve sleeved outside the limiting part, wherein the auxiliary sleeve is higher than the limiting part and can be used for accommodating and positioning the sealing cap together with the limiting part.

According to the utility model discloses the welding jig of the pipeline subassembly that first aspect is related to, it mainly holds and fixes a position the sealing cap of pipeline subassembly through spacing part, and rethread locating support supports the return bend of pipeline subassembly to force the return bend to peg graft with the sealing cap or dock. Through this kind of mode, this welding jig can effectively replace an operator to maintain return bend and sealing cap and be in grafting or butt joint state, guarantees that an operator just can fix a position and weld the sealing cap and the return bend of pipeline subassembly, effectively reduces the required operator number of welding operation, and this can be when having reduced operator's intensity of labour, reduces the risk that the operator is scalded in welding process. In addition, the welding fixture has the advantages of simple structure, easiness in assembly, safety and reliability in use and convenience in implementation, popularization and application.

Drawings

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the figure:

fig. 1 is a perspective view of a welding fixture for welding a pipeline assembly according to an embodiment of the present invention;

fig. 2 is a front view of a welding fixture for welding a pipeline assembly according to an embodiment of the present invention;

FIG. 3 shows the flat stalk, sleeve and adjusting bolt of the welding fixture of FIG. 1;

fig. 4 is a first usage state diagram of the welding fixture for welding the pipeline assembly according to the embodiment of the present invention;

fig. 5 is a second usage state diagram of the welding fixture for welding the pipeline assembly according to the embodiment of the present invention.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a perspective view of a welding fixture for welding a pipeline assembly according to an embodiment of the present invention; fig. 2 is a front view of a welding fixture for welding a pipeline assembly according to an embodiment of the present invention. As shown in fig. 1 and 2, an embodiment of the present invention provides a welding fixture 100 for welding a pipe assembly, wherein the pipe assembly belongs to a partial structure of an air conditioner evaporator and at least comprises an elbow 220 and a sealing cap 210. The welding jig 100 includes a base 10, a positioning bracket 20, and a restricting member 30. Wherein, the positioning bracket 20 is arranged on the base 10, and the limiting component 30 is also arranged on the base 10 and separated from the positioning bracket 20. Stop member 30 is capable of receiving and positioning cap 210 such that positioning bracket 20 is capable of supporting elbow 220 and forcing elbow 220 to mate or abut cap 210. Wherein the base 10 may alternatively be of solid block construction, but for cost reasons it is suggested that a cabinet or table like construction is preferred.

That is to say, the welding fixture 100 mainly accommodates and positions the sealing cap 210 of the pipeline assembly through the limiting part 30, and then supports the elbow 220 of the pipeline assembly through the positioning bracket 20 to force the elbow 220 to be inserted into or butted with the sealing cap 210, so that the welding fixture 100 can effectively replace one operator to maintain the elbow 220 and the sealing cap 210 in an inserted state or a butted state, ensure that one operator can position and weld the sealing cap 210 and the elbow 220 of the pipeline assembly, effectively reduce the number of operators required for welding operation, and reduce the risk of scalding the operator in the welding process while reducing the labor intensity of the operator. In addition, the welding fixture 100 has the advantages of simple structure, easy assembly, safe and reliable use, and convenient implementation, popularization and application.

In the present embodiment, the positioning bracket 20 includes a vertical rod 21 provided on the base 10 and a horizontal rod 22 fixedly or adjustably provided on the vertical rod 21. When the connection between the vertical rod 21 and the horizontal rod 22 is selected as fixed connection, the fixed connection between the two can be selected as welding or integral manufacture. When the connection between the vertical rod 21 and the horizontal rod 22 is adjustable, the adjustable connection between the two can be the structure shown in fig. 3, that is, the positioning bracket 20 further includes a sleeve 23 that is sleeved on the vertical rod 21 and carries the horizontal rod 22, and an adjusting bolt 24 that can be screwed into the sleeve 23 and can fix the vertical rod 21 thereon. When matching the bent pipes 220 of different sizes and/or structures, firstly, the adjusting bolt 24 needs to be loosened, the control sleeve 23 and the horizontal rod 22 carried by the control sleeve slide and rotate on the vertical rod 21, the height and the direction of the horizontal rod 22 are adjusted until the height and the direction of the horizontal rod 22 meet the positioning requirements of the bent pipe 220, and then the adjusting bolt 24 is screwed down to fix the position and the height of the horizontal rod 22. It should be noted that if the thickness of the sheath body 23 is too thin, the adjusting bolt 24 is difficult to be reliably screwed into the internal threaded hole of the sheath body 23, and a radially outwardly extending reinforcing sleeve may be added to the internal threaded hole of the sheath body 23 to extend the internal threaded hole, thereby improving the reliability of the adjusting bolt 24 in use.

In the present embodiment, the number of the positioning brackets 20 may be one or more. When the number of the positioning brackets 20 is one, the elbow 220 can be positioned by using a horizontal rod 22 of the positioning bracket 20, for example, one end of the elbow 220 (for example, an L-shaped pipe) is sleeved on the horizontal rod 22, and then the other end of the elbow 220 is controlled to be plugged or butted with the sealing cap 210 placed in the limiting part 30, so that the elbow 220 and the sealing cap 210 can be maintained in a plugged or butted state by using the positioning bracket 20 and the limiting part 30, and the welding operation can be performed smoothly and safely, as shown in fig. 5 in detail. When the number of the positioning brackets 20 is plural, the plural positioning brackets 20 are provided on the base 10 at intervals, so that the elbow 220 can be cooperatively positioned by the horizontal rods 22 of the plural positioning brackets 20. For example, one end of the bent tube 220 (e.g., a twisted Z-shaped tube) is simultaneously overlapped with the horizontal rods 22 of the plurality of positioning brackets 20, and then the other end of the bent tube 220 is manipulated to be inserted or butted with the sealing cap 210 placed in the limiting part 30, so that the bent tube 220 and the sealing cap 210 can be maintained in the inserted or butted state by using the positioning brackets 20 and the limiting part 30, and the welding operation can be performed smoothly and safely.

In this embodiment, each positioning bracket 20 comprises at least one horizontal bar 22, but preferably only two horizontal bars 22. In order to keep the welding fixture 100 suitable for positioning the fluorine injection nozzle 230 and the sealing cap 210, each positioning bracket 20 comprises two horizontal rods 22, the two horizontal rods 22 are spaced apart along the circumference of the sheath 23, and are in the same horizontal plane but not collinear. After the sealing cap 210 is welded to the elbow 220, the fluorine injection nozzle 230 is inserted into the central hole of the sealing cap 210, then one end of the elbow 220 abuts against the base 10, and then the other end of the elbow 220 is constrained by 3-4 horizontal rods 22 (from two adjacent positioning brackets 20), so that the elbow 220, the sealing cap 210 and the fluorine injection nozzle 230 inserted into the sealing cap 210 can be erected on the base 10 and maintained in this state, so that an operator can weld the fluorine injection nozzle 230 and the sealing cap 210.

In the present embodiment, the welding jig 100 further includes a first vertical baffle 41 provided on the base 10 and a second vertical baffle 42 provided on the base 10 and vertically connected to the first vertical baffle 41. The pipe assembly, which has completed welding, can be erected on the base 10 while resting on the first and second

vertical baffle plates

41 and 42 to maintain the pipe assembly in the erected state by means of the first and second

vertical baffle plates

41 and 42. If necessary, the first vertical baffle 41 and the second vertical baffle 42 can also ensure that the elbow 220, the sealing cap 210 and the fluorine injection nozzle 230 inserted into the sealing cap 210 can be erected on the base 10 and maintained in this state, so that the operator can weld the fluorine injection nozzle 230 and the sealing cap 210.

As shown in fig. 1, in the present embodiment, the welding jig 100 further includes a third vertical baffle 43 provided on the base 10 and vertically connected to the second vertical baffle 42. The use method of the third vertical baffle 43 and the second vertical baffle 42 is substantially the same as the use method of the first vertical baffle 41 and the second vertical baffle 42, and specific reference may be made to the description in the previous paragraph, and details are not repeated here. Among them, the first, second and third

vertical baffles

41, 42 and 43 are preferably stainless steel plates, which are inexpensive and easily available.

In this embodiment, the stop member 30 has a tapered cavity that can partially receive the cap 210. The conical cavity can accommodate caps 210 of different diameters without replacing the position limiting component 30, and therefore the application range of the welding fixture 100 is increased. Preferably, the welding fixture 100 further includes an auxiliary sleeve 50 sleeved outside the limiting component 30, the auxiliary sleeve 50 is higher than the limiting component 30, and can accommodate and position the sealing cap 210 together with the limiting component 30, so as to prevent the sealing cap 210 from tilting and improve the positioning effect of the welding fixture 100 on the sealing cap 210.

In this embodiment, welding jig 100 further includes a gas injection mechanism 60 connected to limiting member 30, as shown in detail in FIG. 2. The gas injection mechanism 60 can sequentially inject welding shielding gas (e.g., nitrogen gas) into the sealing cap 210 and the elbow 220 through the limiting component 30 after the sealing cap 210 and the elbow 220 are butted or inserted, thereby improving the welding quality of the sealing cap 210 and the elbow 220. The gas injection mechanism 60 may be selected as any device capable of outputting the welding shielding gas, including, for example, a container for storing the welding shielding gas, a gas feed pipe communicating with the restricting member 30, and a feed pump connecting the container and the gas feed pipe.

In the present embodiment, the welding jig 100 further includes a semi-finished product storage part provided on the base 10 and/or a finished product storage part 70 provided on the base 10. The semi-finished product storage part is used for storing a semi-finished product formed by welding the sealing cap 210 and the elbow 220, and the product storage part 70 is used for storing a pipeline assembly of the air conditioner evaporator. The semi-finished product storage component and the finished product storage component 70 may each be selected from a flat plate structure, a box structure, or a platform support structure (e.g., consisting of four legs and a rectangular frame, see fig. 1 for details).

In this embodiment, the welding fixture 100 further includes a plurality of sets of limiting members 30 and corresponding positioning brackets 20. The plurality of groups of limiting parts 30 and the corresponding positioning supports 20 arranged in the welding fixture 100 can support an operator to position a plurality of groups of pipeline assemblies at a time, so that simultaneous welding of the plurality of groups of pipeline assemblies is realized, and the production efficiency is improved.

In the description of the present application, it is to be understood that the terms "vertical" and "horizontal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily make changes or variations within the technical scope of the present invention, and such changes or variations should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. The utility model provides a pipeline assembly's welding jig, pipeline assembly belongs to air conditioner evaporimeter's partial structure and includes return bend and sealing cap at least, its characterized in that, welding jig includes the base, establishes locating support on the base with establish on the base and with the spacing part of locating support phase separation, wherein, spacing part can be right the sealing cap holds and fixes a position, makes locating support can support the return bend and force the return bend with the sealing cap pegs graft or the butt joint.

2. The welding jig of claim 1 wherein the positioning bracket comprises a vertical rod disposed on the base and a horizontal rod fixedly or adjustably disposed on the vertical rod.

3. The welding jig of claim 2, wherein the number of the positioning brackets is plural, and a plurality of the positioning brackets are provided on the base at intervals.

4. The welding fixture of claim 2, wherein the positioning bracket further comprises a sleeve body that is sleeved on the vertical rod and carries the horizontal rod, and an adjusting bolt that can be screwed into the sleeve body and can fix the adjusting bolt on the vertical rod.

5. The welding fixture of claim 4, wherein each locating bracket comprises two horizontal bars spaced apart along a circumference of the sleeve body and in a same horizontal plane but not collinear.

6. The welding jig of any one of claims 1 to 5, further comprising a first vertical baffle provided on the base and a second vertical baffle provided on the base and vertically connected to the first vertical baffle.

7. The welding fixture of claim 6, further comprising a third vertical baffle disposed on the base and vertically connected to the second vertical baffle.

8. The welding fixture of any of claims 1 to 5, wherein the stop member has a tapered cavity capable of partially receiving the cap.

9. The welding fixture according to any one of claims 1 to 5, further comprising a gas injection mechanism connected to the position limiting component, wherein the gas injection mechanism is capable of injecting welding shielding gas into the sealing cap and the elbow sequentially through the position limiting component after the sealing cap and the elbow are butted or plugged.

10. Welding jig according to any one of claims 1 to 5, characterized by further comprising a semi-finished product storage means provided on the base and/or a finished product storage means provided on the base.

11. The welding fixture according to any one of claims 1 to 5, further comprising an auxiliary sleeve sleeved outside the limiting part, wherein the auxiliary sleeve is higher than the limiting part and can accommodate and position the sealing cap together with the limiting part.