Subcooled liquid accumulator assembly riveting method

Abstract

This invention provides a riveting method for a subcooled liquid reservoir assembly, which solves the technical problem that existing technologies mainly use rivet guns for riveting, increasing the labor intensity of workers and affecting work efficiency. The riveting mold used has a riveting assembly, and its riveting support punch has multiple expansion assemblies assembled in a petal shape. The expansion assemblies are slidably installed in a direction parallel to the worktable surface. All expansion assemblies are equipped with elastic reset elements. The inner side of the expansion assembly has a sliding inclined surface, and the outer side of the expansion assembly has an expansion action surface. The expansion action surface has a tension action surface and a flange action surface. The flange action surface protrudes radially outward. The head of the riveting top core is conical and is slidably connected to the sliding inclined surface of each expansion assembly. The riveting top core is connected to a driving device. The riveting method includes forming the subcooled liquid reservoir assembly to be riveted, inserting the expansion action surface into the flange structure, raising the riveting top core to complete the riveting, and lowering the riveting top core to remove the riveting assembly. It can be widely used in the field of riveting technology.

Description

Technical Field

[0001] This application relates to the field of riveting technology, and in particular to a riveting method for a subcooled liquid reservoir assembly. Background Technology

[0002] Chinese invention patent CN219868621U discloses a riveted subcooled liquid reservoir assembly, which includes a housing and a connecting bracket. The housing has a flow hole. The connecting bracket includes a first arc structure, a second arc structure, and a flip-hole structure. The connecting bracket is formed by blanking a double composite layer aluminum plate, forming the arc structures at both ends of the bracket through a two-stage stamping process, and finally punching and blanking to form the flip-hole structure. The first arc structure and the second arc structure face away from each other. The flip-hole structure is inserted into the flow hole and the connecting bracket is fixedly connected to the flow hole of the housing by a shaft hole riveting method. This eliminates the need for the convex structure that is integrally extruded and stretched with the housing of the subcooled liquid reservoir, saving the raw materials and milling and turning processes of the convex structure.

[0003] However, the above-mentioned shaft hole riveting method uses rivets to fix the flip-hole structure and the flow hole together. It mainly uses the riveting method with a rivet gun, which increases the labor intensity of workers. The gun is heavy and difficult to operate, which affects work efficiency and wastes human resources. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned technology and provide a riveting method for subcooled liquid reservoir components, which saves time and effort, reduces the labor intensity of workers, and saves human resources.

[0005] Therefore, this invention provides a riveting method for a subcooled liquid reservoir assembly, employing a riveting mold for the subcooled liquid reservoir assembly. The riveting mold includes a frame, a worktable, and the worktable is mounted on the frame. The riveting mold also includes a riveting assembly, which includes a riveting support punch, a riveting core, and an elastic reset element. The riveting support punch has multiple expansion assemblies, which are assembled in a petal-like shape and slidably mounted along a direction parallel to the worktable surface. All expansion assemblies are externally mounted with elastic reset elements. The inner side of each expansion assembly has a sliding inclined surface, and the outer side of the expansion assembly... The side head is provided with an expansion surface, which has a flange surface and a tension surface from top to bottom. Compared with the tension surface, the flange surface protrudes radially outward. The head of the riveting core is conical and slides through the worktable to connect with the sliding ramp of each mold expansion assembly. The riveting core is connected to a first linear drive device. The first linear drive device drives the riveting core to rise, and the riveting core drives each mold expansion assembly to expand outward. The first linear drive device drives the riveting core to fall, and the elastic reset element drives each mold expansion assembly to retract inward and return to its original position.

[0006] The steps for riveting subcooled liquid receiver components include: S1. Insert the flanged structure of the connecting bracket upward into the flow hole of the subcooled liquid reservoir housing. The flanged part of the flanged structure is located inside the housing and extends upward from the flow hole. The tensioning part of the flanged structure is located on the inner side of the hole wall of the flow hole, forming a subcooled liquid reservoir assembly to be riveted. S2. Place the subcooled liquid reservoir assembly to be riveted, with the expansion surface of the mold expansion assembly facing upward and inserted into the flange structure, the flange surface being set inside the flange part, and the tensioning surface being set inside the tensioning part. S3. Start the first linear drive device to drive the riveting top core to rise. The head of the riveting top core drives each mold expansion assembly to expand outward, so that the flanging surface and the tensioning surface of each mold expansion assembly expand outward. The flanging surface pushes the flanging part to expand and deform outward, so that the flanging part is tightly attached to the inner wall of the shell after flanging; the tensioning surface pushes the tensioning part to expand and deform outward, so that the tensioning part is tightly attached to the inner wall of the flow hole. S4. Start the first linear drive device to drive the riveting top core to descend, and the elastic reset element drives each mold expansion assembly to retract inward and return to its original position, remove the subcooled liquid reservoir assembly, and complete the riveting work of the subcooled liquid reservoir assembly.

[0007] Preferably, the riveting assembly includes a fixed riveting assembly and a movable riveting assembly. Both the fixed riveting assembly and the movable riveting assembly are respectively provided with a riveting support punch, a riveting top core, and an elastic reset element. The riveting top core of the fixed riveting assembly and the riveting top core of the movable riveting assembly are respectively connected to a first linear drive device.

[0008] The riveting mold is also equipped with a position adjustment device, which has a position adjustment plate. The position adjustment plate has a strip-shaped mounting groove, which is located below the second strip-shaped through hole and the two are arranged in parallel. The riveting top core of the fixed riveting assembly and the riveting top core of the movable riveting assembly are both detachably and fixedly connected in the strip-shaped mounting groove. The position adjustment plate is connected to the first linear drive device.

[0009] The riveting mold is also equipped with a support platform, which is installed on the workbench. The support platform is longitudinally spaced with a first mounting through hole and a first strip-shaped through hole.

[0010] The riveting bracket punch of the fixed riveting assembly is set in the first mounting through hole, and space is reserved between the two for each expansion die assembly to expand outward. The expansion surface of the riveting bracket punch of the fixed riveting assembly is exposed upward through the first mounting through hole. The movable riveting assembly also has a movable cover, which is set in the first strip-shaped through hole. The bottom of the movable cover is slidably connected to the worktable. The movable cover has a second mounting through hole in the longitudinal direction. The riveting support punch of the movable riveting assembly is set in the second mounting through hole, and space is reserved between the two for each expansion assembly to expand outward. The expansion surface of the riveting support punch of the movable riveting assembly passes through the second mounting through hole and then exposes the first strip-shaped through hole.

[0011] Both the fixed riveting assembly and the movable riveting assembly have elastic reset elements equipped with compression springs. The fixed riveting assembly has multiple compression springs, with one end of each spring connected to the outer side of each expansion mold assembly of the fixed riveting assembly, and the other end connected to the wall of the first mounting through hole. The movable riveting assembly also has multiple compression springs, with one end connected to the outer side of each expansion mold assembly of the movable riveting assembly, and the other end connected to the wall of the second mounting through hole.

[0012] The workbench has a first through hole and a second strip-shaped through hole. The head of the riveting core of the fixed riveting assembly passes through the first through hole and is slidably connected to the riveting bracket punch. The second strip-shaped through hole is connected to the first strip-shaped through hole and is arranged in parallel. The head of the riveting core of the movable riveting assembly passes through the second strip-shaped through hole and is slidably connected to the riveting bracket punch.

[0013] The steps for riveting subcooled liquid receiver components include: S1. Insert the two connecting brackets with their flipped holes upward into the flow holes of the subcooled liquid reservoir housing. The flipped edge of the flipped hole structure is located inside the housing and extends upward from the flow hole. The tensioning part of the flipped hole structure is located on the inner side of the flow hole wall, forming a subcooled liquid reservoir assembly to be riveted. S2. Release the riveting top core of the movable riveting assembly from the strip mounting groove of the position adjustment plate, move the movable riveting assembly along the length of the first strip through hole, so that the distance between the riveting bracket punch of the fixed riveting assembly and the riveting bracket punch of the movable riveting assembly is appropriate to the distance between the two connecting brackets of the subcooled liquid reservoir assembly to be riveted, and fix the riveting top core of the movable riveting assembly in the strip mounting groove; S3. Place the subcooled liquid reservoir assembly to be riveted, and insert the expansion action surface of the expansion mold assembly of the fixed riveting assembly and the expansion action surface of the expansion mold assembly of the movable riveting assembly into the flip-hole structure of the two connecting brackets respectively, so that the flange action surface is set on the inner side of the flange part and the tensioning action surface is set on the inner side of the tensioning part. S4. Start the first linear drive device to drive the position adjustment plate together with the fixed riveting assembly and the riveting core of the movable riveting assembly to rise, drive each mold expansion assembly of the corresponding connecting bracket to expand outward, so that the flange action surface and the tension action surface of each mold expansion assembly expand outward. The flange action surface pushes the flange part to expand and deform outward, so that the flange part is tightly attached to the inner wall of the shell after being flanged; the tension action surface pushes the tension part to expand and deform outward, so that the tension part is tightly attached to the inner wall of the flow hole. S5. Start the first linear drive device to drive the position adjustment plate together with the riveting core of the fixed riveting assembly and the movable riveting assembly to descend. The elastic reset elements of the fixed riveting assembly and the movable riveting assembly respectively drive each corresponding mold expansion assembly to retract inward and return to its original position, remove the subcooled liquid reservoir assembly, and complete the riveting work of the subcooled liquid reservoir assembly.

[0014] Preferably, the riveting mold is further provided with a guiding device. The guiding device is provided with a first guiding member in the horizontal direction. The first guiding member is a rod-shaped structure. One end of the first guiding member is connected to the movable cover. The other end of the first guiding member passes through the support platform and extends out. The first guiding member is arranged parallel to the second strip-shaped through hole. The first guiding member is slidably connected to the support platform.

[0015] Preferably, the riveting core of the fixed riveting assembly has a second through hole, the riveting core of the movable riveting assembly has a third through hole, and the sidewall of the strip mounting groove has multiple fourth through holes, with the multiple third through holes spaced apart along the extension direction of the strip mounting groove; the riveting core of the fixed riveting assembly is detachably fixed in the second and fourth through holes by means of a first positioning pin, and the riveting core of the movable riveting assembly is detachably fixed in the third through hole and another fourth through hole by means of a second positioning pin.

[0016] Preferably, the riveting mold is further provided with a guiding device, and the guiding device is provided with a second guiding member in the longitudinal direction. The second guiding member is a rod-shaped structure. The upper end of the second guiding member is connected to the worktable, and the lower end of the second guiding member passes through the position adjustment plate downward and extends out. The second guiding member is slidably connected to the position adjustment plate.

[0017] Preferably, the guiding device is further provided with a third guide member in the longitudinal direction. The third guide member has a U-shaped structure. The bottom of the third guide member is detachably and fixedly connected to the riveting top core of the movable riveting assembly. The top two ends of the third guide member pass upward through the movable cover and extend out. The third guide member is slidably connected to the movable cover.

[0018] Preferably, the riveting mold is further provided with a housing positioning device, which includes a bracket, a second linear drive device, and a housing pressure block located below the second linear drive device; the bracket is installed on the worktable, the second linear drive device is installed on the bracket, and the telescopic rod of the second linear drive device is connected to the housing pressure block.

[0019] Preferably, the riveting mold is further provided with a first support member and a second support member.

[0020] The first support member is provided with a first support part and a first connecting part. The first support part is a U-shaped structure formed by connecting a first transverse section and two first longitudinal sections. The upper surface of the first transverse section is an upward-facing first arc-shaped structure and is provided with a fifth through hole. The two first longitudinal sections are respectively connected to the support platform through a first connecting part.

[0021] The second support member is provided with a second support part and a second connecting part. The second support part is a U-shaped structure formed by connecting a second transverse section and two second longitudinal sections. The upper surface of the second transverse section is a downward-facing second arc-shaped structure. The two second longitudinal sections are respectively connected to the support platform through a second connecting part.

[0022] Both the fixed riveting assembly and the movable riveting assembly are provided with a first bearing member. In the fixed riveting assembly, the expanding surface of the riveting support punch passes through the first mounting through hole and the corresponding fifth through hole in turn and is exposed. A space is reserved between the expanding surface of the riveting support punch and the corresponding fifth through hole for each expansion assembly to expand outward. In the movable riveting assembly, the expanding surface of the riveting support punch passes through the second mounting through hole, the first strip through hole, and the corresponding fifth through hole in turn and is exposed. A space is reserved between the expanding surface of the riveting support punch and the corresponding fifth through hole for outward expansion.

[0023] Preferably, the elastic reset element is provided with a compression spring and an elastic rubber ring, and compression springs and elastic rubber rings are respectively installed on the outside of all expansion mold components.

[0024] Each mold expansion assembly has a mounting hole and a transverse mounting groove on its outer side. One end of the compression spring is connected to the mounting hole. An elastic rubber ring is fitted on the punch of the riveting bracket and is elastically installed in the transverse mounting groove of each mold expansion assembly.

[0025] Preferably, the riveting mold is also equipped with a fuma wheel, which is installed at the bottom of the frame.

[0026] The beneficial effects of this invention are as follows: This invention provides a riveting method for a subcooled liquid reservoir assembly. A first linear drive device drives the riveting core to rise, and the riveting core drives each expansion mold assembly to expand outward, so that the connecting bracket and the housing form a riveting connection. Compared with the traditional handheld riveting gun, this invention improves processing efficiency, reduces the labor intensity of workers, saves human resources, and the riveted subcooled liquid reservoir housing and connecting bracket are not easy to fall off, making them more secure, with stable product quality and safer operation. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a partial cross-sectional front view schematic diagram of one form of the riveting mold of the present invention; Figure 2 This is a three-dimensional structural diagram of another form of the riveting mold of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of a partial cross-sectional view of the riveting mold of the present invention; Figure 4 for Figure 2 A magnified structural diagram of part A in the diagram; Figure 5 A partial cross-sectional view of the core component of the riveting mold of the present invention; Figure 6 for Figure 5 A schematic diagram of the enlarged structure of part B in the diagram; Figure 7 for Figure 6 A schematic diagram of the enlarged structure of part C in the diagram; Figure 8 for Figure 6 A schematic diagram of the structure after the movable riveting component has been adjusted and positioned. Figure 9 for Figure 8 A magnified structural diagram of part D in the diagram; Figure 10 A three-dimensional structural diagram of the punch claw of the riveting bracket; Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure shown in the view; Figure 12 A top view of the riveted top core structure; Figure 13 for Figure 12 A schematic diagram of the front view structure shown in the figure; Figure 14 This is a schematic diagram of the structure of the riveted subcooled liquid reservoir assembly of the present invention; Figure 15 for Figure 14 A magnified structural diagram of part E in the diagram; Figure 16 A schematic diagram illustrating the riveting principle of a subcooled liquid receiver assembly; Figure 17 for Figure 16 A schematic diagram of the enlarged structure of part F in the diagram; Figure 18 This is a three-dimensional structural diagram of the first load-bearing component; Figure 19 A schematic diagram of the main structure of the first support component carrying the subcooled liquid reservoir assembly to be riveted; Figure 20 This is a three-dimensional structural diagram of the second load-bearing component.

[0029] The diagram shows the following components: 1. Frame, 2. Workbench, 3. Riveting bracket punch, 4. Riveting top core, 5. Elastic reset element, 6. First linear drive device, 7. Fixed riveting assembly, 8. Movable riveting assembly, 9. Support platform, 10. First guide, 11. Position adjustment plate, 12. Second guide, 13. Third guide, 14. Housing positioning device, 15. First bearing, 16. Second bearing, 17. Connecting bracket, 18. Housing, 20. First through hole, 21. Second strip through hole, 22. Fuma wheel, 30. Die expansion assembly, 40. Head, 41. Second through hole, 42. Third through hole, 43. First positioning pin, 44. Second positioning pin, 50. Compression spring, 51. Elastic rubber ring, 80. Movable cover, 90. First mounting through hole, 91. 110. First strip-shaped through hole; 140. Strip-shaped mounting groove; 141. Bracket; 142. Second linear drive device; 150. Housing pressure block; 151. First bearing part; 160. Second bearing part; 161. Second connecting part; 170. First arc structure; 171. Second arc structure; 173. Flanged structure; 180. Flow hole; 300. Sliding inclined surface; 301. Expansion action surface; 302. Mounting hole; 303. Lateral mounting groove; 800. Second mounting through hole; 1100. Fourth through hole; 1500. First lateral section; 1501. First longitudinal section; 1600. Second lateral section; 1601. Second longitudinal section; 1730. Flanged part; 1731. Tensioning part; 3010. Flanged action surface; 3011. Tensioning surface, 15001. First arc-shaped structure, 15002. Fifth through hole, 16001. Second arc-shaped structure. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0031] Depend on Figure 1As shown, this invention provides a riveting mold for a subcooled liquid reservoir assembly. The riveting mold includes a frame 1, a worktable 2, and the worktable 2 is mounted on the frame 1. The riveting mold also includes a riveting assembly, which includes a riveting support punch 3, a riveting core 4, and an elastic reset element 5. The riveting support punch 3 has multiple mold expansion components 30, which are assembled in a petal-like shape (by...). Figure 10 As shown), multiple mold expansion assemblies 30 are slidably installed along a direction parallel to the surface of the worktable 2, and all mold expansion assemblies 30 are externally equipped with elastic reset elements 5. Figure 11 As shown, the inner side of the mold expansion assembly 30 is provided with a sliding inclined surface 300, and the outer head of the mold expansion assembly 30 is provided with an expansion action surface 301. The expansion action surface 301 has a flange action surface 3010 and a tensioning action surface 3011 from top to bottom. Compared with the tensioning action surface 3011, the flange action surface 3010 protrudes radially outward. The head 40 of the riveting core 4 is tapered (from... Figure 13 As shown), the head 40 of the riveting core 4 passes through the worktable 2 and is slidably connected to the sliding ramp 300 of each mold expansion assembly 30; the riveting core 4 is connected to a first linear drive device 6; the first linear drive device 6 drives the riveting core 4 to rise, and the riveting core 4 drives each mold expansion assembly 30 to expand outward; the first linear drive device 6 drives the riveting core 4 to fall, and the elastic reset element 5 drives each mold expansion assembly 30 to retract inward and return to its original position.

[0032] like Figure 1 , Figure 16 , Figure 17 As shown, the riveting method for the subcooled liquid receiver assembly includes the following steps: S1. Insert the flanged structure 173 of the connecting bracket 17 upward into the flow hole 180 of the subcooled liquid reservoir housing 18; the flanged portion 1730 of the flanged structure 173 is provided inside the housing 18 and extends upward from the flow hole 180, and the tensioning portion 1731 of the flanged structure 173 is provided on the inner side of the hole wall of the flow hole 180, forming a subcooled liquid reservoir assembly to be riveted.

[0033] S2. Place the subcooled liquid reservoir assembly to be riveted, so that the expansion surface 301 of the expansion assembly 30 is inserted upward into the flange structure 173, the flange surface 3010 is located inside the flange portion 1730, and the tension surface 3011 is located inside the tension portion 1731.

[0034] S3. Start the first linear drive device 6 to drive the riveting top core 4 to rise. The head 40 of the riveting top core 4 drives each mold expansion assembly 30 to expand outward, so that the flange action surface 3010 and the tension action surface 3011 of each mold expansion assembly 30 expand outward. Since the flange action surface 3010 protrudes radially outward, the flange part 1730 of the flange hole structure 173 extends upward out of the flow hole 180. The flange action surface 3010 pushes the flange part 1730 to expand and deform outward, so that the flange part 1730 is tightly attached to the inner wall of the housing 18 after being flanged. The outwardly expanding tension action surface 3011 pushes the tension part 1731 to expand and deform outward, so that the tension part 1731 is tightly attached to the inner wall of the flow hole 180, thus completing the connection bracket 17 to be firmly riveted to the housing 18.

[0035] S4. Start the first linear drive device 6 to drive the riveting top core 4 to descend, and the elastic reset element 5 drives each mold expansion assembly 30 to retract inward and return to its original position, remove the subcooled liquid reservoir assembly, and complete the riveting work of the subcooled liquid reservoir assembly.

[0036] This invention provides a riveting mold for a supercooled liquid reservoir assembly. A first linear drive device 6 drives the riveting core 4 to rise, which in turn drives each expansion assembly 30 to expand outward. In actual operation, the rising speed of the riveting core 4 can be controlled to drive each expansion assembly 30 to "explode" outward, so that the connecting bracket 17 and the housing 18 form a riveting connection. Compared with the traditional handheld riveting gun, this invention improves processing efficiency, reduces the labor intensity of workers, saves human resources, and the supercooled liquid reservoir housing 18 and the connecting bracket 17 are less likely to fall off after riveting, making them more secure, with stable product quality and safer operation.

[0037] In some embodiments, preferably, by Figure 6 , Figure 7 As shown, the riveting assembly includes a fixed riveting assembly 7 and a movable riveting assembly 8. Both the fixed riveting assembly 7 and the movable riveting assembly 8 are respectively provided with the above-mentioned riveting support punch 3, riveting top core 4, and elastic reset element 5. The riveting top core 4 of the fixed riveting assembly 7 and the riveting top core 4 of the movable riveting assembly 8 are respectively connected to a first linear drive device 6.

[0038] Depend on Figure 4 , Figure 7As shown, the riveting mold is also equipped with a position adjustment device, which has a position adjustment plate 11. The position adjustment plate 11 has a strip-shaped mounting groove 110, which is located below the second strip-shaped through hole 21 and the two are arranged in parallel. The riveting core 4 of the fixed riveting assembly 7 and the riveting core 4 of the movable riveting assembly 8 are both detachably and fixedly connected in the strip-shaped mounting groove 110. The detachable and fixed connection of the riveting core 4 of the fixed riveting assembly 7 in the strip-shaped mounting groove 110 facilitates the replacement of the riveting core 4 of the fixed riveting assembly 7. The detachable and fixed connection of the riveting core 4 of the movable riveting assembly 8 in the strip-shaped mounting groove 110 allows for adjustment of the position of the riveting core 4 of the movable riveting assembly 8 according to actual conditions, saving time and effort. The position adjustment plate 11 is connected to the first linear drive device 6.

[0039] Depend on Figure 4 , Figure 7 As shown, the riveting mold is also provided with a support platform 9, which is installed on the workbench 2. The support platform 9 is provided with a first mounting through hole 90 and a first strip-shaped through hole 91 spaced apart longitudinally.

[0040] Depend on Figure 6 , Figure 7 As shown, the riveting bracket punch 3 of the fixed riveting assembly 7 is disposed in the first mounting through hole 90, and space is reserved between the two for each expansion die assembly 30 to expand outward. The expansion action surface 301 of the riveting bracket punch 3 of the fixed riveting assembly 7 is exposed upward through the first mounting through hole 90. Depend on Figure 4 , Figure 7 As shown, the movable riveting assembly 8 is also provided with a movable cover 80, which is disposed in the first strip-shaped through hole 91. The bottom of the movable cover 80 is slidably connected to the worktable 2. The movable cover 80 is provided with a second mounting through hole 800 in the longitudinal direction. The riveting support punch 3 of the movable riveting assembly 8 is disposed in the second mounting through hole 800, and space is reserved between the two for each expansion assembly 30 to expand outward. The expansion action surface 301 of the riveting support punch 3 of the movable riveting assembly 8 passes through the second mounting through hole 800 and then exposes the first strip-shaped through hole 91. Depend on Figure 7 As shown, both the fixed riveting assembly 7 and the movable riveting assembly 8 have elastic reset elements 5 equipped with compression springs 50. The fixed riveting assembly 7 has multiple compression springs 50, with one end of each compression spring 50 connected to the outer side of each expansion mold assembly 30 of the fixed riveting assembly 7, and the other end of each compression spring 50 connected to the wall of the first mounting through hole 90. The movable riveting assembly 8 also has multiple compression springs 50, with one end of each compression spring 50 connected to the outer side of each expansion mold assembly 30 of the movable riveting assembly 8, and the other end of each compression spring 50 connected to the wall of the second mounting through hole 800.

[0041] Depend on Figure 7 As shown, the workbench 2 has a first through hole 20 and a second strip-shaped through hole 21. The head 40 of the riveting core 4 of the fixed riveting assembly 7 passes through the first through hole 20 and is slidably connected to the riveting bracket punch 3 that matches it. The second strip-shaped through hole 21 is connected to the first strip-shaped through hole 91 and is arranged in parallel. The head 40 of the riveting core 4 of the movable riveting assembly 8 passes through the second strip-shaped through hole 21 and is slidably connected to the riveting bracket punch 3 that matches it. According to the actual situation, the movable cover 80 can be pushed to slide along the length direction of the second strip-shaped through hole 21 on the workbench 2 to a suitable position.

[0042] Depend on Figure 7 , Figure 9 , Figure 15 , Figure 17 As shown, the riveting method for the subcooled liquid receiver assembly includes the following steps: S1. Insert the two connecting brackets 17 with their flipped holes 173 facing upwards into the flow holes 180 of the subcooled liquid reservoir housing 18. The flipped edge 1730 of the flipped hole structure 173 is located inside the housing 18 and extends upwards from the flow hole 180. The tensioning part 1731 of the flipped hole structure 173 is located on the inner side of the hole wall of the flow hole 180, forming a subcooled liquid reservoir assembly to be riveted. S2. Release the riveting core 4 of the movable riveting assembly 8 from the strip mounting groove 110 of the position adjustment plate 11, move the movable riveting assembly 8 along the length direction of the first strip through hole 91, so that the distance between the riveting bracket punch 3 of the fixed riveting assembly 7 and the riveting bracket punch 3 of the movable riveting assembly 8 is appropriate to the distance between the two connecting brackets 17 of the subcooled liquid reservoir assembly to be riveted, and fix the riveting core 4 of the movable riveting assembly 8 in the strip mounting groove 110; S3. Place the subcooled liquid reservoir assembly to be riveted, and insert the expansion surface 301 of the expansion mold assembly 30 of the fixed riveting assembly 7 and the expansion surface 301 of the expansion mold assembly 30 of the movable riveting assembly 8 into the flip hole structure 173 of the two connecting brackets 17 respectively, so that the flange surface 3010 is located inside the flange portion 1730 and the tensioning surface 3011 is located inside the tensioning portion 1731. S4. Start the first linear drive device 6 to drive the position adjustment plate 11 together with the fixed riveting assembly 7 and the riveting core 4 of the movable riveting assembly 8 to rise, drive each mold expansion assembly 30 of the corresponding connecting bracket 17 to expand outward, so that the flange action surface 3010 and the tension action surface 3011 of each mold expansion assembly 30 expand outward. The flange action surface 3010 pushes the flange part 1730 to expand and deform outward, so that the flange part 1730 is tightly attached to the inner wall of the shell 18 after being flanged; the tension action surface 3011 pushes the tension part 1731 to expand and deform outward, so that the tension part 1731 is tightly attached to the inner wall of the flow hole 180. S5. Start the first linear drive device 6 to drive the position adjustment plate 11 together with the fixed riveting assembly 7 and the movable riveting assembly 8 to descend the riveting top core 4. The elastic reset elements 5 of the fixed riveting assembly 7 and the movable riveting assembly 8 respectively drive each corresponding mold expansion assembly 30 to retract inward and return to its original position, remove the supercooled liquid reservoir assembly, and complete the riveting work of the supercooled liquid reservoir assembly.

[0043] This invention provides a riveting mold for a subcooled liquid reservoir assembly. On one hand, the riveting assembly includes a fixed riveting component 7 and a movable riveting component 8. The position of the movable riveting component 8 can be adjusted according to actual conditions to achieve a suitable distance between the fixed riveting component 7 and the movable riveting component 8, thereby meeting the riveting requirements of two connecting brackets 17 at different distances on the subcooled liquid reservoir housing 18. On the other hand, under the power output of the first linear drive device 6, the riveting core 4 of the fixed riveting component 7 and the riveting core 4 of the movable riveting component 8 are simultaneously raised or lowered by the position adjustment plate 11, thereby completing the riveting work of the two connecting brackets 17 on the subcooled liquid reservoir housing 18.

[0044] In some embodiments, preferably, by Figure 4 As shown, the riveting mold is also equipped with a guiding device. The guiding device has a first guide member 10 arranged laterally. The first guide member 10 is a rod-shaped structure. One end of the first guide member 10 is connected to the movable cover 80, and the other end of the first guide member 10 passes through the support platform 9 and extends out. The first guide member 10 is arranged parallel to the second strip-shaped through hole 21, and the first guide member 10 is slidably connected to the support platform 9. When it is necessary to adjust the position of the movable riveting assembly 8, the first guide member 10 plays a further guiding role, so that the movable cover 80 of the movable riveting assembly 8 slides stably on the worktable 2 along the length direction of the second strip-shaped through hole 21.

[0045] In some embodiments, preferably, by Figure 7 , Figure 9As shown, the riveting core 4 of the fixed riveting assembly 7 has a second through hole 41, the riveting core 4 of the movable riveting assembly 8 has a third through hole 42, and the side wall of the strip mounting groove 110 has multiple fourth through holes 1100. The multiple third through holes 42 are spaced apart along the extension direction of the strip mounting groove 110. The riveting core 4 of the fixed riveting assembly 7 is detachably fixed in the second through hole 41 and the fourth through hole 1100 by means of a first positioning pin 43, and the riveting core 4 of the movable riveting assembly 8 is detachably fixed in the third through hole 42 and another fourth through hole 1100 by means of a second positioning pin 44. The detachable fixing method using positioning pins allows for quick replacement of the positioning pins, does not damage the holes, has high repeatability, saves on fixture costs, and requires zero maintenance.

[0046] In some embodiments, preferably, by Figure 4 As shown, the riveting mold is also equipped with a guiding device. The guiding device has a second guide member 12 arranged longitudinally. The second guide member 12 is a rod-shaped structure. The upper end of the second guide member 12 is connected to the worktable 2, and the lower end of the second guide member 12 passes downward through the position adjustment plate 11 and extends out. The second guide member 12 is slidably connected to the position adjustment plate 11. Under the power output of the first linear drive device 6, by setting the second guide member 12, the position adjustment plate 11 drives the riveting top core 4 of the fixed riveting assembly 7 and the riveting top core 4 of the movable riveting assembly 8 to rise or fall simultaneously in a more stable and reliable manner.

[0047] In some embodiments, preferably, by Figure 4 , Figure 9 As shown, the guiding device also includes a longitudinally arranged third guide member 13. The third guide member 13 has a U-shaped structure. The bottom of the third guide member 13 is detachably and fixedly connected to the riveting core 4 of the movable riveting assembly 8. The top two ends of the third guide member 13 extend upward through the movable cover 80 and are slidably connected to the movable cover 80. Under the power output of the first linear drive device 6, the riveting core 4 of the movable riveting assembly 8 rises or falls together with the third guide member 13. The U-shaped third guide member 13, which passes upward through the movable cover 80 and is slidably connected to it, further ensures the stability of the riveting core 4 of the movable riveting assembly 8 as it rises or falls. On the other hand, when adjusting the position of the movable riveting assembly 8, it ensures that the relative positions of its riveting bracket punch 3, riveting core 4, and movable cover 80 remain unchanged.

[0048] In some embodiments, preferably, by Figure 2 , Figure 15As shown, the riveting mold is also provided with a housing positioning device 14. The housing positioning device 14 is provided with a bracket 140, a second linear drive device 141, and a housing pressure block 142 located below the second linear drive device 141. The bracket 140 is installed on the worktable 2, the second linear drive device 141 is installed on the bracket 140, and the telescopic rod of the second linear drive device 141 is connected to the housing pressure block 142. In use, after placing the subcooled liquid reservoir assembly to be riveted on the riveting mold of this invention, the second linear drive device 141 is activated. The telescopic rod of the second linear drive device 141 extends, driving the housing pressure block 142 to move downward and press down on the housing 18 of the subcooled liquid reservoir located directly below it, so that the housing 18 is fixed in a stationary state and prevents it from shifting. After the riveting of the subcooled liquid reservoir assembly is completed, the second linear drive device 141 is activated again. The telescopic rod of the second linear drive device 141 retracts, driving the housing pressure block 142 to move upward and detach from the housing 18 of the subcooled liquid reservoir. Then the subcooled liquid reservoir assembly is removed.

[0049] In some embodiments, preferably, by Figure 18 , Figure 19 As shown, the riveting mold is also provided with a first bearing member 15. The first bearing member 15 is provided with a first bearing part 150 and a first connecting part 151. The first bearing part 150 is a U-shaped structure formed by connecting a first transverse section 1500 and two first longitudinal sections 1501. The upper surface of the first transverse section 1500 is an upward-facing first arc-shaped structure 15001, and a fifth through hole 15002 is provided. The two first longitudinal sections 1501 are respectively connected to the support platform 9 through a first connecting part 151.

[0050] like Figure 19 As shown, a conventional connecting bracket 17 includes a first arc structure 170, a second arc structure 171, and a perforated structure 173. The first arc structure 170 and the second arc structure 171 face away from each other, with the arc of the first arc structure 170 facing upwards to mate with the subcooled liquid reservoir housing 18, and the arc of the second arc structure 171 facing downwards. In this invention, the first transverse segment 1500 of the first bearing member 15 is provided with a first arc structure 15001, and the arc of the first arc structure 15001 faces upwards, its shape matching the second arc structure 171 of the connecting bracket 17. In use, the supercooled liquid reservoir assembly to be riveted is placed on the riveting mold of this application, so that the second arc structure 171 of the connecting bracket 17 is matched and placed on the first arc structure 15001 of the first transverse section 1500 of the first support member 15, and the flip-hole structure 173 of the connecting bracket 17 is aligned with the fifth through hole 15002 of the first transverse section 1500 of the first support member 15, so as to ensure that the connecting bracket 17 together with the housing 18 is accurately positioned and prevents displacement, thereby improving the riveting quality.

[0051] like Figure 8 , Figure 9 , Figure 11 , Figure 18 As shown, both the fixed riveting assembly 7 and the movable riveting assembly 8 are provided with a first bearing member 15. The expansion surface 301 of the riveting bracket punch 3 of the fixed riveting assembly 7 passes upward through the first mounting through hole 90 and the corresponding fifth through hole 15002 of the first bearing member 15, and a space is reserved between the expansion surface 301 of the riveting bracket punch 3 of the fixed riveting assembly 7 and the corresponding fifth through hole 15002 for each expansion assembly 30 to expand outward. Similarly, the expansion surface 301 of the riveting bracket punch 3 of the movable riveting assembly 8 passes upward through the second mounting through hole 800, the first strip through hole 91, and the corresponding fifth through hole 15002 of the first bearing member 15, and a space is reserved between the expansion surface 301 of the riveting bracket punch 3 of the movable riveting assembly 8 and the corresponding fifth through hole 15002 for outward expansion. By setting the first bearing member 15 on the fixed riveting assembly 7 and the movable riveting assembly 8 respectively, the corresponding connecting bracket 17 to be riveted in the fixed riveting assembly 7 and the movable riveting assembly 8, together with the housing 18, can be accurately positioned and prevented from shifting, thereby improving the riveting quality.

[0052] In some embodiments, preferably, by Figure 15 , Figure 20 As shown, the riveting mold also includes a second support member 16, which has a second support portion 160 and a second connecting portion 161. The second support portion 160 is a U-shaped structure formed by connecting a second transverse section 1600 and two second longitudinal sections 1601. The upper surface of the second transverse section 1600 is a downward-facing second arc-shaped structure 16001. The two second longitudinal sections 1601 are respectively connected to the support platform 9 through a second connecting portion 161. In use, the supercooled liquid reservoir assembly to be riveted is placed on the riveting mold of this application, so that the supercooled liquid reservoir housing 18 is matched and placed on the second arc-shaped structure 16001 of the second transverse section 1600, so that the housing 18 is accurately positioned and prevented from shifting, thereby improving the riveting quality. In some embodiments, preferably, by Figure 1 , Figure 11 , Figure 16 , Figure 17As shown, the elastic reset element 5 is provided with a compression spring 50 and an elastic rubber ring 51. Compression springs 50 and elastic rubber rings 51 are respectively installed on the outside of all mold expansion components 30. Each mold expansion component 30 is provided with a mounting hole 302 and a transverse mounting groove 303 on its outer side. One end of the compression spring 50 is connected to the mounting hole 302, and the other end of the compression spring 50 can be connected to the worktable 2 according to the actual situation. The elastic rubber ring 51 is sleeved on the riveting bracket punch 3 and is elastically installed in the transverse mounting groove 303 of each mold expansion component 30. When the first linear drive device 6 drives the riveting core 4 to rise, as the conical head 40 of the riveting core 4 gradually inserts upward into the riveting bracket punch 3, each mold expansion assembly 30 is driven to expand outward. The compression spring 50 and the elastic rubber ring 51 work together to stabilize this outward expansion process. When the first linear drive device 6 drives the riveting core 4 to fall, as the head 40 of the riveting core 4 gradually pulls downward away from the riveting bracket punch 3, the compression spring 50 and the elastic rubber ring 51 work together to drive each mold expansion assembly 30 to retract inward and return to its original position.

[0053] In some embodiments, preferably, by Figure 2 As shown, the riveting die is also equipped with casters 22, which are installed at the bottom of the frame 1. Four sets of casters 22 can be installed symmetrically at the bottom of the frame 1 by bolts, so as to realize the overall movement and fixation of the riveting die.

[0054] It should be noted that: (1) Multiple first linear drive devices 6 can be set according to actual conditions.

[0055] (2) The first linear drive device 6 and the second linear drive device 141 can be linear drive devices such as cylinders or electric cylinders.

[0056] (3) The number of fixed riveting components 7 and movable riveting components 8 can be set according to the actual situation.

[0057] (4) By Figure 4 As shown, the movable cover 80 can be constructed by stacking multiple perforated plate-like structures of different sizes according to the shape of the internal riveting bracket punch 3. The support platform 9 can also be constructed by stacking and connecting multiple support plates according to the actual situation.

[0058] (5) Fixed riveting assembly 7 and movable riveting assembly 8 can be set in multiple ways according to actual conditions, so as to meet the riveting requirements of multiple connecting brackets on the subcooled liquid reservoir shell.

[0059] (6) The connecting bracket can be made of metal materials such as aluminum alloy.

[0060] (7) Under the power output of the first linear drive device 6, the rising speed of the riveting core 4 can be controlled to be preferably 50-300 mm / s, driving each mold expansion assembly 30 to "explode" outward.

[0061] In the description of this invention, it should be understood that the terms "left," "right," "upper," "lower," "top," "bottom," "front," "rear," "inner," "outer," "back," and "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. It should be noted that in the above embodiments, the terms "first," "second," and "third" do not represent an absolute distinction in structure and / or function, nor do they represent a sequential execution order, but are merely for the convenience of description.

[0062] The above description is merely a preferred embodiment of this application and is not intended to limit this application. It should be understood that any feature described with respect to any embodiment can be used alone, or in combination with other features, or in combination with one or more features of any other embodiment, or in any combination with any other embodiment. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for riveting a subcooled liquid reservoir assembly, characterized in that, It employs a supercooled liquid reservoir assembly riveting mold, wherein the riveting mold is provided with a frame (1) and a worktable (2), the worktable (2) being mounted on the frame (1). The riveting mold is characterized by further comprising a riveting assembly, the riveting assembly comprising a riveting support punch (3), a riveting core (4), and an elastic reset element (5); the riveting support punch (3) comprises multiple expansion assemblies (30), the multiple expansion assemblies (30) being assembled in a petal-like manner, the multiple expansion assemblies (30) being slidably mounted along a direction parallel to the worktable (2) surface, and the elastic reset element (5) being mounted on the outside of all expansion assemblies (30); the inner side of the expansion assembly (30) is provided with a sliding inclined surface (300), and the outer head of the expansion assembly (30) is provided with an expansion action surface (301), the expansion action surface (301) being composed of... The device has a flanged surface (3010) and a tensioning surface (3011) from top to bottom. Compared with the tensioning surface (3011), the flanged surface (3010) protrudes radially outward. The head (40) of the riveting core (4) is tapered. The head (40) of the riveting core (4) passes through the worktable (2) and is slidably connected to the sliding ramp (300) of each mold expansion assembly (30). The riveting core (4) is connected to a first linear drive device (6). The first linear drive device (6) drives the riveting core (4) to rise, and the riveting core (4) drives each mold expansion assembly (30) to expand outward. The first linear drive device (6) drives the riveting core (4) to fall, and the elastic reset element (5) drives each mold expansion assembly (30) to retract inward and return to its original position. The riveting method for the subcooled liquid reservoir assembly includes the following steps: S1. Insert the flip-hole structure (173) of the connecting bracket (17) upward into the flow hole (180) of the subcooled liquid reservoir housing (18). The flange (1730) of the flip-hole structure (173) is located inside the housing (18) and extends upward from the flow hole (180). The tensioning part (1731) of the flip-hole structure (173) is located on the inner side of the hole wall of the flow hole (180) to form a subcooled liquid reservoir assembly to be riveted. S2. Place the supercooled liquid reservoir assembly to be riveted, so that the expansion surface (301) of the expansion assembly (30) is inserted upward into the flange structure (173), the flange surface (3010) is located inside the flange portion (1730), and the tension surface (3011) is located inside the tension portion (1731); S3. Start the first linear drive device (6) to drive the riveting top core (4) to rise. The head (40) of the riveting top core (4) drives each of the mold expansion components (30) to expand outward, so that the flanging action surface (3010) and the tensioning action surface (3011) of each of the mold expansion components (30) expand outward. The flanging action surface (3010) pushes the flanging part (1730) to expand and deform outward, so that the flanging part (1730) is tightly attached to the inner wall of the shell (18) after flanging. The tensioning action surface (3011) pushes the tensioning part (1731) to expand and deform outward, so that the tensioning part (1731) is tightly attached to the inner wall of the flow hole (180). S4. Start the first linear drive device (6) to drive the riveting top core (4) to descend, and the elastic reset element (5) drives each of the expansion mold components (30) to retract inward and return to its original position, remove the supercooled liquid reservoir assembly, and complete the riveting work of the supercooled liquid reservoir assembly.

2. The riveting method for a subcooled liquid reservoir assembly according to claim 1, characterized in that, The riveting assembly includes a fixed riveting assembly (7) and a movable riveting assembly (8). The fixed riveting assembly (7) and the movable riveting assembly (8) are respectively provided with the riveting support punch (3), the riveting top core (4), and the elastic reset element (5). The riveting top core (4) of the fixed riveting assembly (7) and the riveting top core (4) of the movable riveting assembly (8) are respectively connected to a first linear drive device (6). The riveting mold is also provided with a position adjustment device, which is provided with a position adjustment plate (11). The position adjustment plate (11) is provided with a strip-shaped mounting groove (110). The strip-shaped mounting groove (110) is located below the second strip-shaped through hole (21) and the two are arranged in parallel. The riveting core (4) of the fixed riveting assembly (7) and the riveting core (4) of the movable riveting assembly (8) are respectively detachably and fixedly connected in the strip-shaped mounting groove (110). The position adjustment plate (11) is connected to the first linear drive device (6). The riveting mold is also provided with a support platform (9), which is installed on the workbench (2). The support platform (9) is longitudinally spaced with a first mounting through hole (90) and a first strip through hole (91). The riveting bracket punch (3) of the fixed riveting assembly (7) is disposed in the first mounting through hole (90), and space is reserved between them for each of the expansion mold assemblies (30) to expand outward. The expansion action surface (301) of the riveting bracket punch (3) of the fixed riveting assembly (7) is exposed upward through the first mounting through hole (90). The movable riveting assembly (8) is also provided with a movable cover (80), which is disposed in the first strip-shaped through hole (91). The bottom of the movable cover (80) is slidably connected to the worktable (2). The movable cover (80) is provided with a second mounting through hole (800) in the longitudinal direction. The riveting support punch (3) of the movable riveting assembly (8) is disposed in the second mounting through hole (800), and space is reserved between them for each of the expansion components (30) to expand outward. The expansion action surface (301) of the riveting support punch (3) of the movable riveting assembly (8) passes through the second mounting through hole (800) and then exposes the first strip-shaped through hole (91). Both the fixed riveting assembly (7) and the movable riveting assembly (8) have elastic reset elements (5) equipped with compression springs (50). The fixed riveting assembly (7) has multiple compression springs (50), one end of which is connected to the outer side of each mold expansion assembly (30) of the fixed riveting assembly (7), and the other end of which is connected to the wall of the first mounting through hole (90). The movable riveting assembly (8) has multiple compression springs (50), one end of which is connected to the outer side of each mold expansion assembly (30) of the movable riveting assembly (8), and the other end of which is connected to the wall of the second mounting through hole (800). The workbench (2) has a first through hole (20) and a second strip through hole (21). The head (40) of the riveting core (4) of the fixed riveting assembly (7) passes through the first through hole (20) and is slidably connected to the riveting bracket punch (3) that matches it. The second strip through hole (21) is connected to the first strip through hole (91) and is arranged in parallel. The head (40) of the riveting core (4) of the movable riveting assembly (8) passes through the second strip through hole (21) and is slidably connected to the riveting bracket punch (3) that matches it. The riveting method for the subcooled liquid reservoir assembly includes the following steps: S1. Insert the flip-hole structures (173) of the two connecting brackets (17) upward into the flow holes (180) of the subcooled liquid reservoir housing (18), respectively. The flange (1730) of the flip-hole structure (173) is located inside the housing (18) and extends upward from the flow hole (180). The tensioning part (1731) of the flip-hole structure (173) is located on the inner side of the hole wall of the flow hole (180) to form a subcooled liquid reservoir assembly to be riveted. S2. Release the riveting core (4) of the movable riveting assembly (8) from the strip mounting groove (110) of the position adjustment plate (11), move the movable riveting assembly (8) along the length direction of the first strip through hole (91), so that the distance between the riveting bracket punch (3) of the fixed riveting assembly (7) and the riveting bracket punch (3) of the movable riveting assembly (8) is appropriate to the distance between the two connecting brackets (17) of the supercooled liquid reservoir assembly to be riveted, and fix the riveting core (4) of the movable riveting assembly (8) in the strip mounting groove (110); S3. Place the supercooled liquid reservoir assembly to be riveted, and insert the expansion surface (301) of the expansion mold assembly (30) of the fixed riveting assembly (7) and the expansion surface (301) of the expansion mold assembly (30) of the movable riveting assembly (8) upward into the flip hole structure (173) of the two connecting brackets (17), so that the flange surface (3010) is located inside the flange portion (1730) and the tension surface (3011) is located inside the tension portion (1731); S4. Start the first linear drive device (6) to drive the position adjustment plate (11) together with the fixed riveting assembly (7) and the riveting core (4) of the movable riveting assembly (8) to rise, drive each of the corresponding connecting brackets (17) to expand outward, so that the flange action surface (3010) and the tension action surface (3011) of each of the flange assembly (30) expand outward, the flange action surface (3010) pushes the flange part (1730) to expand and deform outward, so that the flange part (1730) is tightly attached to the inner wall of the shell (18) after flange; the tension action surface (3011) pushes the tension part (1731) to expand and deform outward, so that the tension part (1731) is tightly attached to the inner wall of the flow hole (180); S5. Start the first linear drive device (6) to drive the position adjustment plate (11) together with the fixed riveting assembly (7) and the riveting core (4) of the movable riveting assembly (8) to descend. The elastic reset elements (5) of the fixed riveting assembly (7) and the movable riveting assembly (8) respectively drive each of the corresponding expansion assemblies (30) to retract inward and return to their original positions, remove the supercooled liquid reservoir assembly, and complete the riveting work of the supercooled liquid reservoir assembly.

3. The riveting method for a subcooled liquid reservoir assembly according to claim 2, characterized in that, The riveting mold is also provided with a guide device. The guide device is provided with a first guide member (10) in the horizontal direction. The first guide member (10) is a rod-shaped structure. One end of the first guide member (10) is connected to the movable cover (80). The other end of the first guide member (10) passes through the support platform (9) and extends out. The first guide member (10) is arranged parallel to the second strip-shaped through hole (21). The first guide member (10) is slidably connected to the support platform (9).

4. The riveting method for a subcooled liquid reservoir assembly according to claim 2, characterized in that, The fixed riveting assembly (7) has a second through hole (41) in the riveting top core (4), the movable riveting assembly (8) has a third through hole (42) in the riveting top core (4), and the side wall of the strip mounting groove (110) has a plurality of fourth through holes (1100). The plurality of third through holes (42) are spaced apart along the extension direction of the strip mounting groove (110). The fixed riveting assembly (7) has a riveting top core (4) that is detachably fixed in the second through hole (41) and the fourth through hole (1100) by means of a first positioning pin (43). The movable riveting assembly (8) has a riveting top core (4) that is detachably fixed in the third through hole (42) and another fourth through hole (1100) by means of a second positioning pin (44).

5. A riveting method for a subcooled liquid reservoir assembly according to claim 2, characterized in that, The riveting mold is also provided with a guide device. The guide device is provided with a second guide member (12) in the longitudinal direction. The second guide member (12) is a rod-shaped structure. The upper end of the second guide member (12) is connected to the worktable (2). The lower end of the second guide member (12) passes through the position adjustment plate (11) downward and extends out. The second guide member (12) is slidably connected to the position adjustment plate (11).

6. A riveting method for a subcooled liquid reservoir assembly according to claim 2, characterized in that, The guiding device is also provided with a third guide (13) in the longitudinal direction. The third guide (13) has a U-shaped structure. The bottom of the third guide (13) is detachably and fixedly connected to the riveting top core (4) of the movable riveting assembly (8). The top two ends of the third guide (13) pass through the movable cover (80) and extend upward. The third guide (13) is slidably connected to the movable cover (80).

7. The riveting method for a subcooled liquid reservoir assembly according to claim 1, characterized in that, The riveting mold is also provided with a housing positioning device (14). The housing positioning device (14) is provided with a bracket (140), a second linear drive device (141), and a housing pressure block (142) located below the second linear drive device (141). The bracket (140) is installed on the workbench (2), the second linear drive device (141) is installed on the bracket (140), and the telescopic rod of the second linear drive device (141) is connected to the housing pressure block (142).

8. A riveting method for a subcooled liquid reservoir assembly according to any one of claims 2-7, characterized in that, The riveting mold is also provided with a first bearing member (15) and a second bearing member (16). The first support member (15) is provided with a first support part (150) and a first connecting part (151). The first support part (150) is a U-shaped structure formed by connecting a first transverse section (1500) and two first longitudinal sections (1501). The upper surface of the first transverse section (1500) is an upward first arc-shaped structure (15001) and is provided with a fifth through hole (15002). The two first longitudinal sections (1501) are respectively connected to the support platform (9) through one of the first connecting parts (151). The second support member (16) is provided with a second support part (160) and a second connecting part (161). The second support part (160) is a U-shaped structure formed by connecting a second transverse section (1600) and two second longitudinal sections (1601). The upper surface of the second transverse section (1600) is a downward-facing second arc-shaped structure (16001). The two second longitudinal sections (1601) are respectively connected to the support platform (9) through a second connecting part (161). Both the fixed riveting assembly (7) and the movable riveting assembly (8) are provided with a first bearing member (15). The expansion surface (301) of the riveting bracket punch (3) of the fixed riveting assembly (7) passes through the first mounting through hole (90) and the corresponding fifth through hole (15002) upwards and then protrudes. A space is reserved between the expansion surface (301) of the riveting bracket punch (3) of the fixed riveting assembly (7) and the corresponding fifth through hole (15002) for each The expansion assembly (30) has an outward expansion space; the expansion action surface (301) of the riveting bracket punch (3) of the movable riveting assembly (8) passes upward through the second mounting through hole (800), the first strip through hole (91), and the corresponding fifth through hole (15002) and is exposed, and an outward expansion space is reserved between the expansion action surface (301) of the riveting bracket punch (3) of the movable riveting assembly (8) and the corresponding fifth through hole (15002).

9. A riveting method for a subcooled liquid reservoir assembly according to claim 2, characterized in that, The elastic reset element (5) is provided with the compression spring (50) and the elastic rubber ring (51), and the compression spring (50) and the elastic rubber ring (51) are respectively installed on the outside of all the expansion mold components (30); Each of the mold expansion components (30) has a mounting hole (302) and a transverse mounting groove (303) on its outer side. One end of the compression spring (50) is connected to the mounting hole (302). The elastic rubber ring (51) is sleeved on the riveting bracket punch (3) and is elastically installed in the transverse mounting groove (303) of each of the mold expansion components (30).

10. A riveting method for a subcooled liquid reservoir assembly according to claim 1, characterized in that, The riveting mold is also provided with a fuma wheel (22), which is installed at the bottom of the frame (1).

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