Absorption type refrigeration machine core assembly welding tool

Abstract

The invention belongs to the technical field of refrigerator refrigerating systems and discloses an absorption type refrigerating machine core assembly welding tool which comprises a base frame, and an overturning assembly is connected with the base frame. The condensation supporting and positioning mechanism, the evaporation part supporting and positioning mechanism, the absorption part supporting and positioning mechanism and the bypass pipe supporting mechanism are sequentially installed on the overturning assembly from left to right. By means of the mode, the device can rapidly position a refrigeration assembly with a complex pipeline structure, welding firmness is improved, and the flatness of a mounting plane is guaranteed; and after welding is completed, the whole refrigeration machine core after welding can be conveniently discharged.

Description

Technical Field

[0001] This invention relates to the field of refrigerator refrigeration system technology, and specifically to a welding fixture for an absorption refrigeration core component. Background Technology

[0002] Absorption refrigeration is a technology that uses thermal energy to drive refrigeration and relies on the phase change of the refrigerant and the absorption cycle of the absorbent to achieve refrigeration. The core difference between it and compression refrigeration is that the compressor of compression refrigeration is replaced by an absorber, generator, and liquid receiver. It can be driven by low-grade thermal energy (such as waste heat, solar energy, and gas combustion heat), and has outstanding energy-saving performance.

[0003] However, existing welding fixtures for refrigeration core components in RV refrigerators are difficult to adapt to the complex piping and multi-component structure of refrigeration components, resulting in cumbersome and time-consuming component positioning operations, insufficient positioning stability, and easy component displacement during welding, which in turn affects the flatness of the component mounting surface and the stability of the welded connection.

[0004] Based on this, the present invention designs a welding fixture for an absorption refrigeration core assembly to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a welding fixture for an absorption refrigeration core assembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A welding fixture for an absorption refrigeration core assembly includes a base frame, and also includes a flipping assembly, a condenser support and positioning mechanism, an evaporator support and positioning mechanism, an absorption section support and positioning mechanism, and a bypass pipe support mechanism. The flip-up assembly is connected to the base frame; A condenser support positioning mechanism for limiting and fixing the condenser fins and condenser outer tube of the refrigeration assembly, an evaporation section support positioning mechanism for limiting the left side of the wire tube evaporator of the refrigeration assembly, an absorption section support positioning mechanism for positioning and limiting the right side of the wire tube evaporator, the left side of the first outer tube, the left side of the second outer tube, the first outer small tube, the liquid storage tank, the serpentine absorption tube, and the right side of the second outer small tube of the refrigeration assembly, and a bypass support mechanism for positioning the assembly frame and the right side of the first outer tube of the refrigeration assembly are installed on the flip assembly from left to right. Furthermore, the flipping assembly includes a rotating shaft, a U-shaped limiting block, a placement frame, and a driving assembly; the rotating shaft is rotatably mounted on the left and right inner walls of the base frame; the U-shaped limiting block is symmetrically and fixedly mounted on one end of the two rotating shafts that are close to each other; the placement frame is fixedly connected to the two U-shaped limiting blocks. The placement frame is connected to the condenser support positioning mechanism, the evaporator support positioning mechanism, the absorber support positioning mechanism, and the bypass pipe support mechanism; the drive assembly is mounted on the base frame and connected to the rotating shaft; Furthermore, the condensation support positioning mechanism includes a first horizontal plate, a second horizontal plate, a first positioning block, a second positioning block, a limiting side plate, and a third positioning block; the front and rear sides of the first and second horizontal plates are fixedly connected to the left side of the front and rear inner walls of the placement frame; the first positioning block is fixedly installed on the rear side of the first and second horizontal plates; the second positioning block is fixedly installed on the front side of the first and second horizontal plates. Both the first and second positioning blocks have recessed grooves. The limiting side plates are symmetrically fixedly installed on the front and rear sides of the first horizontal plate; The third positioning block is fixedly installed on the front side of the first horizontal plate; and the upper right side of the third positioning block is provided with an inclined positioning surface for limiting the condenser tube. Furthermore, the length of the sinking trough is the same as the length of the condenser plate; Furthermore, the evaporation section support and positioning mechanism includes a third horizontal plate, a fourth horizontal plate, a fifth horizontal plate, and a fourth positioning block; the third horizontal plate, the fourth horizontal plate, and the fifth horizontal plate are all fixedly installed on the left side of the placement frame; The fourth positioning block is fixedly installed on the rear side of the placement frame; the fourth positioning block has a first arc groove for supporting the left side of the first outer tube; Furthermore, the diameter of the first arc groove is the same as the outer diameter of the first outer tube; Furthermore, the absorption section support and positioning mechanism includes a sixth horizontal plate, a seventh horizontal plate, a fifth positioning block, a sixth positioning block, a seventh positioning block, an eighth positioning block, a ninth positioning block, a tenth positioning block, and a front limiting plate; the sixth and seventh horizontal plates are fixedly installed in the middle of the placement frame; the fifth positioning block is fixedly installed on the upper rear side of the sixth horizontal plate; the sixth positioning block is fixedly installed on the rear side of the placement frame; the seventh and eighth positioning blocks are fixedly installed on the upper end of the seventh horizontal plate. The ninth positioning block is fixedly installed diagonally and symmetrically on the upper ends of the sixth and seventh horizontal plates; The tenth positioning block is fixedly installed on the upper rear side of the seventh horizontal plate; Both the seventh and eighth positioning blocks are provided with a fourth arc groove with a diameter equal to the outer diameter of the storage tank. Furthermore, the side tube support mechanism includes an eighth horizontal plate, an eleventh positioning block, and a twelfth positioning block; the eighth horizontal plate is fixedly installed on the right side of the placement frame; the eleventh and twelfth positioning blocks are fixedly installed on the upper end of the eighth horizontal plate; the eleventh positioning block is inclined; and a first arc groove is also provided on the upper end of the eleventh positioning block. The upper end of the twelfth positioning block is provided with a groove for limiting the position of the assembly frame.

[0007] Compared with the prior art, the present invention has the following advantages: the rotating shaft and the placement frame facilitate welding of different parts of the refrigeration component, thereby improving welding efficiency; the cooperation of the condenser support positioning mechanism, the evaporator support positioning mechanism, the absorption section support positioning mechanism and the bypass pipe support mechanism enables the device to quickly position refrigeration components with complex piping structures, and also improves the firmness of welding and ensures the flatness of the installation surface; and after welding, it is convenient to unload the entire refrigeration core after welding. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0009] Figure 1 A three-dimensional welding fixture for an absorption refrigeration core assembly according to the present invention. Figure 1 ; Figure 2 Three-dimensional cooling components Figure 1 ; Figure 3 Three-dimensional cooling components Figure 2 ; Figure 4 A three-dimensional welding fixture for an absorption refrigeration core assembly according to the present invention. Figure 2 ; Figure 5 A three-dimensional welding fixture for an absorption refrigeration core assembly according to the present invention. Figure 3 ; Figure 6 A three-dimensional welding fixture for an absorption refrigeration core assembly according to the present invention. Figure 4 ; Figure 7 for Figure 5 Enlarged view of point A in the middle; Figure 8 for Figure 6 Enlarged view of point B in the middle.

[0010] The labels in the diagram represent: 1. Base frame; 2. Rotating shaft; 3. U-shaped limiting block; 4. Placement frame; 5. Condensation support positioning mechanism; 51. First horizontal plate; 52. Second horizontal plate; 53. First positioning block; 54. Second positioning block; 55. Sinking groove; 56. Limiting side plate; 57. Third positioning block; 58. Sloping positioning surface; 59. Side positioning block; 510. Fifth arc groove; 6. Evaporation section support positioning mechanism; 61. Third horizontal plate; 62. Fourth horizontal plate; 63. Fifth horizontal plate; 68. Fourth positioning block; 69. First arc groove; 7. Absorption section support positioning mechanism; 71. Sixth horizontal plate; 72. Seventh horizontal plate; 73. Fifth positioning block; 74. Sixth positioning block Positioning Block; 75. Seventh Positioning Block; 76. Eighth Positioning Block; 77. Ninth Positioning Block; 78. Tenth Positioning Block; 79. Front Limiting Plate; 710. Second Arc Groove; 711. Third Arc Groove; 712. Fourth Arc Groove; 713. Limiting Groove; 8. Side Pipe Support Mechanism; 81. Eighth Horizontal Plate; 82. Eleventh Positioning Block; 83. Twelfth Positioning Block; 84. Cable Groove; 9. Refrigeration Component; 91. First Outer Pipe; 92. Second Outer Pipe; 93. First Outer Small Pipe; 94. Liquid Storage Tank; 95. Serpentine Absorption Tube; 96. Wire Tube Evaporator; 97. Second Outer Small Pipe; 98. Condenser Plate; 99. Condenser Outer Pipe; 910. Collection Rack. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0012] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8 A welding fixture for an absorption refrigeration core component includes a base frame 1, and also includes a flipping component, a condenser support positioning mechanism 5, an evaporator support positioning mechanism 6, an absorption section support positioning mechanism 7, and a bypass pipe support mechanism 8. The flip assembly is connected to the base frame 1; The following components are installed on the flip assembly from left to right: a condenser support positioning mechanism 5 for limiting and fixing the condenser fins 98 and condenser outer tubes 99 of the refrigeration assembly 9; an evaporation part support positioning mechanism 6 for limiting the left side of the wire tube evaporator 96 of the refrigeration assembly 9; an absorption part support positioning mechanism 7 for positioning and limiting the right side of the wire tube evaporator 96, the left side of the first outer tube 91, the left side of the second outer tube 92, the first outer small tube 93, the liquid storage tank 94, the serpentine absorption tube 95, and the right side of the second outer small tube 97 of the refrigeration assembly 9; and a bypass tube support mechanism 8 for positioning the assembly frame 910 and the right side of the first outer tube 91 of the refrigeration assembly 9. The flipping assembly includes a rotating shaft 2, a U-shaped limiting block 3, and a placement frame 4; the rotating shaft 2 is rotatably installed on the left and right inner walls of the base frame 1; the U-shaped limiting block 3 is symmetrically fixedly installed at one end of the two rotating shafts 2 that are close to each other; the placement frame 4 is fixedly connected to the two U-shaped limiting blocks 3. The placement frame 4 is connected to the condenser support positioning mechanism 5, the evaporator support positioning mechanism 6, the absorber support positioning mechanism 7, and the bypass pipe support mechanism 8; The rotating shaft 2 can be driven by a motor; and the motor is fixedly installed on the left side of the base frame 1; the output end of the motor is fixedly connected to the left rotating shaft 2 (the motor is not shown in the figure); In this invention, the rotating shaft 2 and the placement frame 4 facilitate welding of different parts of the refrigeration component 9, thereby improving welding efficiency. The cooperation of the condenser support positioning mechanism 5, the evaporator support positioning mechanism 6, the absorption part support positioning mechanism 7, and the bypass pipe support mechanism 8 enables the device to quickly position the refrigeration component 9 with a complex pipeline structure, and also improves the firmness of the welding and ensures the flatness of the installation surface. Furthermore, after welding, it is convenient to unload the entire refrigeration core after welding.

[0013] Example 2: In some embodiments, such as Figure 4 and Figure 7 As shown, in a preferred embodiment of the present invention, the condensation support positioning mechanism 5 includes a first horizontal plate 51, a second horizontal plate 52, a first positioning block 53, a second positioning block 54, a limiting side plate 56, a third positioning block 57, and a side positioning block 59; the front and rear sides of the first horizontal plate 51 and the second horizontal plate 52 are fixedly connected to the left side of the front and rear inner walls of the placement frame 4; the first positioning block 53 is fixedly installed on the rear side of the first horizontal plate 51 and the second horizontal plate 52; the second positioning block 54 is fixedly installed on the front side of the first horizontal plate 51 and the second horizontal plate 52. Both the first positioning block 53 and the second positioning block 54 are provided with a recessed groove 55; The limiting side plates 56 are symmetrically fixedly installed on the front and rear sides of the first horizontal plate 51; The third positioning block 57 is fixedly installed on the front side of the first horizontal plate 51; and the upper right side of the third positioning block 57 is provided with an inclined positioning surface 58 for limiting the condenser outer tube 99. The length of the sink 55 is the same as the length of the condenser plate 98; The side positioning block 59 is fixedly installed on the upper rear side of the second horizontal plate 52; the side positioning block 59 is provided with a fifth arc groove 510 for limiting and fixing the second outer tube 97.

[0014] The evaporation section support and positioning mechanism 6 includes a third horizontal plate 61, a fourth horizontal plate 62, a fifth horizontal plate 63, and a fourth positioning block 68; the third horizontal plate 61, the fourth horizontal plate 62, and the fifth horizontal plate 63 are all fixedly installed on the left side of the placement frame 4; The fourth positioning block 68 is fixedly installed on the rear side of the placement frame 4; the fourth positioning block 68 is provided with a first arc groove 69 for supporting the left side of the first outer tube 91; The diameter of the first arc groove 69 is the same as the outer diameter of the first outer tube 91; In this invention, the sinking groove 55 can limit the left and right sides of multiple condenser fins 98 and further position the condenser fins 98 under the action of the limiting side plate 56; and the inclined positioning surface 58 can provide contour support for the front side of the condenser outer tube 99, thereby ensuring welding accuracy. Since the middle bend of the wire tube evaporator 96 has a V-shaped profile, the third horizontal plate 61, the fourth horizontal plate 62 and the fifth horizontal plate 63 will provide conformal support for the V-shaped profile to ensure welding accuracy. Furthermore, the first arc groove 69 can also support the left side of the first outer tube 91.

[0015] Example 3: In some embodiments, such as Figure 4 and Figure 8 As shown, in a preferred embodiment of the present invention, the absorption part support and positioning mechanism 7 includes a sixth horizontal plate 71, a seventh horizontal plate 72, a fifth positioning block 73, a sixth positioning block 74, a seventh positioning block 75, an eighth positioning block 76, a ninth positioning block 77, a tenth positioning block 78, and a front limiting plate 79; the sixth horizontal plate 71 and the seventh horizontal plate 72 are fixedly installed in the middle of the placement frame 4; the fifth positioning block 73 is fixedly installed on the upper rear side of the sixth horizontal plate 71; the sixth positioning block 74 is fixedly installed on the rear side of the placement frame 4; the seventh positioning block 75 and the eighth positioning block 76 are fixedly installed on the upper end of the seventh horizontal plate 72; The ninth positioning block 77 is fixedly installed diagonally and symmetrically on the upper ends of the sixth horizontal plate 71 and the seventh horizontal plate 72; The tenth positioning block 78 is fixedly installed on the upper rear side of the seventh horizontal plate 72; The upper end of the fifth positioning block 73 is provided with a third arc groove 711, a second arc groove 710 and a first arc groove 69 from front to back; The upper end of the sixth positioning block 74 is provided with a third arc groove 711 and a second arc groove 710 from front to back; The tenth positioning block 78 also has a first arc groove 69 in the middle; The diameter of the third arc groove 711 is the same as the outer diameter of the wire tube evaporator 96; the diameter of the second arc groove 710 is the same as the outer diameter of the first outer tube 93. The ninth positioning block 77 is also provided with a limiting groove 713 to limit the bottom of the serpentine absorption tube 95; Both the seventh positioning block 75 and the eighth positioning block 76 are provided with a fourth arc groove 712 with the same diameter as the outer diameter of the liquid storage tank 94. The third arc groove 711 and the second arc groove 710 opened on the fifth positioning block 73 and the sixth positioning block 74 are distributed in a stepped manner. The bypass support mechanism 8 includes an eighth horizontal plate 81, an eleventh positioning block 82, and a twelfth positioning block 83; the eighth horizontal plate 81 is fixedly installed on the right side of the placement frame 4; the eleventh positioning block 82 and the twelfth positioning block 83 are fixedly installed on the upper end of the eighth horizontal plate 81; the eleventh positioning block 82 is inclined; and a first arc groove 69 is also provided on the upper end of the eleventh positioning block 82. The upper end of the twelfth positioning block 83 is provided with a wire groove 84 for limiting the position of the assembly frame 910; In this invention, the fourth arc groove 712 can limit the liquid storage tank 94; the twelfth positioning block 83 can support and fix the right side bend of the first outer tube 91; and through the stepped design distribution of the third arc groove 711 and the second arc groove 710, the device can synchronously position pipelines at different heights, thereby realizing the rapid positioning and installation of complex pipelines in the refrigeration assembly 9.

[0016] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A welding fixture for an absorption chiller core assembly, comprising a base frame (1), characterized in that: It also includes a flipping assembly, a condenser support and positioning mechanism (5), an evaporator support and positioning mechanism (6), an absorption section support and positioning mechanism (7), and a bypass pipe support mechanism (8). The flip-up assembly is connected to the base frame (1); A condenser support positioning mechanism (5) for limiting and fixing the condenser fins (98) and condenser outer tubes (99) of the refrigeration assembly (9), an evaporator support positioning mechanism (6) for limiting the left side of the wire tube evaporator (96) of the refrigeration assembly (9), an absorption part support positioning mechanism (7) for positioning and limiting the right side of the wire tube evaporator (96), the left side of the first outer tube (91), the left side of the second outer tube (92), the first outer small tube (93), the liquid storage tank (94), the serpentine absorption tube (95), and the right side of the second outer small tube (97) of the refrigeration assembly (9), and a bypass support mechanism (8) for positioning the assembly frame (910) and the right side of the first outer tube (91) of the refrigeration assembly (9) are installed on the flip assembly from left to right.

2. The welding fixture for the absorption refrigeration core assembly according to claim 1, characterized in that, The flipping assembly includes a rotating shaft (2), a U-shaped limiting block (3), a placement frame (4), and a driving assembly; the rotating shaft (2) is rotatably installed on the left and right inner walls of the base frame (1); the U-shaped limiting block (3) is symmetrically fixedly installed at one end of the two rotating shafts (2) that are close to each other; the placement frame (4) is fixedly connected to the two U-shaped limiting blocks (3) on the left and right. The placement frame (4) is connected to the condenser support positioning mechanism (5), the evaporator support positioning mechanism (6), the absorber support positioning mechanism (7) and the bypass support mechanism (8); the drive assembly is mounted on the base frame (1) and connected to the rotating shaft (2).

3. The welding fixture for the absorption refrigeration core assembly according to claim 2, characterized in that, The condensation support positioning mechanism (5) includes a first horizontal plate (51), a second horizontal plate (52), a first positioning block (53), a second positioning block (54), a limiting side plate (56), and a third positioning block (57); the front and rear sides of the first horizontal plate (51) and the second horizontal plate (52) are fixedly connected to the left side of the front and rear inner walls of the placement frame (4); the first positioning block (53) is fixedly installed on the rear side of the first horizontal plate (51) and the second horizontal plate (52); the second positioning block (54) is fixedly installed on the front side of the first horizontal plate (51) and the second horizontal plate (52). Both the first positioning block (53) and the second positioning block (54) are provided with a recessed groove (55); The limiting side plate (56) is symmetrically fixedly installed on the front and rear sides of the first horizontal plate (51); The third positioning block (57) is fixedly installed on the front side of the first horizontal plate (51); and the upper right side of the third positioning block (57) is provided with an inclined positioning surface (58) for limiting the condenser tube (99).

4. The welding fixture for the absorption refrigeration core assembly according to claim 3, characterized in that, The length of the sink trough (55) is the same as the length of the condenser plate (98).

5. The welding fixture for the absorption refrigeration core assembly according to claim 4, characterized in that, The evaporation section support and positioning mechanism (6) includes a third horizontal plate (61), a fourth horizontal plate (62), a fifth horizontal plate (63), and a fourth positioning block (68); the third horizontal plate (61), the fourth horizontal plate (62), and the fifth horizontal plate (63) are all fixedly installed on the left side of the placement frame (4); The fourth positioning block (68) is fixedly installed on the rear side of the placement frame (4); the fourth positioning block (68) is provided with a first arc groove (69) for supporting the left side of the first outer tube (91).

6. The welding fixture for the absorption refrigeration core assembly according to claim 5, characterized in that, The diameter of the first arc groove (69) is the same as the outer diameter of the first outer tube (91).

7. The welding fixture for the absorption refrigeration core assembly according to claim 6, characterized in that, The absorption section support positioning mechanism (7) includes a sixth horizontal plate (71), a seventh horizontal plate (72), a fifth positioning block (73), a sixth positioning block (74), a seventh positioning block (75), an eighth positioning block (76), a ninth positioning block (77), a tenth positioning block (78), and a front limiting plate (79); the sixth horizontal plate (71) and the seventh horizontal plate (72) are fixedly installed in the middle of the placement frame (4); the fifth positioning block (73) is fixedly installed on the upper rear side of the sixth horizontal plate (71); the sixth positioning block (74) is fixedly installed on the rear side of the placement frame (4); the seventh positioning block (75) and the eighth positioning block (76) are fixedly installed on the upper end of the seventh horizontal plate (72); The ninth positioning block (77) is fixedly installed diagonally and symmetrically on the upper ends of the sixth horizontal plate (71) and the seventh horizontal plate (72); The tenth positioning block (78) is fixedly installed on the upper rear side of the seventh horizontal plate (72); Both the seventh positioning block (75) and the eighth positioning block (76) are provided with a fourth arc groove (712) with the same diameter as the outer diameter of the liquid storage tank (94).

8. The welding fixture for the absorption refrigeration core assembly according to claim 7, characterized in that, The bypass support mechanism (8) includes an eighth horizontal plate (81), an eleventh positioning block (82), and a twelfth positioning block (83); the eighth horizontal plate (81) is fixedly installed on the right side of the placement frame (4); the eleventh positioning block (82) and the twelfth positioning block (83) are fixedly installed on the upper end of the eighth horizontal plate (81); the eleventh positioning block (82) is inclined; and the upper end of the eleventh positioning block (82) is also provided with a first arc groove (69); The upper end of the twelfth positioning block (83) is provided with a groove (84) for limiting the position of the assembly frame (910).

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