A production equipment for aluminum tube and aluminum fin evaporator

Abstract

The invention discloses a production device for an aluminum tube and aluminum fin evaporator, comprising a feed slide, a lifting platform, an aluminum tube guide mechanism, a die assembly and a joint assembly, wherein the die assembly is arranged on the lifting platform, and comprises a lower module, an upper module and a die frame, the joint surfaces of the upper module and the lower module are matched in the form of a step, and a clamping die hole is formed between the upper module and the lower module, the clamping die hole is provided with two, and they are respectively a clamping die hole 1 and a clamping die hole 2, the outer sides of the upper module and the lower module are respectively fixed with a sensor 1 and a sensor 2, the sensor 1 and the sensor 2 correspond to the clamping die hole 1 and the clamping die hole 2, and the lower module is fixed on the die frame by screws; the equipment changes the traditional tube expansion method of the aluminum tube and aluminum fin evaporator, and the equipment can produce products with a length of more than 1.5 meters and ensure that the fins and pipelines are closely fitted and the pipelines are not extended, and no manual operation is required, and the inside of the aluminum tube is purged after the tube expansion.

Description

Technical Field

[0001] The invention relates to the technical field of evaporator production, in particular to production equipment for an aluminum tube and aluminum fin evaporator. Background Art

[0002] The evaporator is an important component in the freezer refrigeration system. Its function is to dissipate the heat of the high-pressure, high-temperature refrigerant gas sent by the compressor to the external space of the refrigerator; the refrigerant liquid is liquefied after heat dissipation and cooling, and becomes high-pressure, room-temperature refrigerant liquid.

[0003] The evaporator is composed of fins and aluminum tubes assembled together. During the tube expansion process, the existing tube expansion method is mechanical expansion, which drives the expansion rod to move in the aluminum tube to expand the aluminum tube so that the outer surface of the aluminum tube is fully in contact with the hole wall of the fin. This method of expanding the aluminum tube may damage the aluminum tube. From the production process point of view, this radiator assembly method has complicated procedures and low efficiency, and increases the production process. Chinese patent application No. 202310360384.7 discloses a tube threading tensioning mechanism for radiator assembly; this mechanism can effectively solve the above problems, but the following problems are found in the use of this mechanism; due to insufficient strength of the aluminum tube, when the required product is greater than 1.5 meters, the aluminum tube will become thinner and extend, and the maximum extension length will reach 20-30mm, which will cause the fins and the aluminum tube to not fit tightly, affecting heat dissipation, and extension will make it impossible to produce subsequent processes; for example, extra-long products; such as air curtain cabinets, display cabinets and other terminal products, the use of this mechanism cannot meet production needs.

[0004] Chinese patent application No. 201910751424.4 discloses a circulating water expansion machine including a frame, which is divided into an upper layer and a lower layer. A sheet pressing mechanism and a water expansion mechanism are arranged on the upper layer from right to left in sequence. A lifting frame corresponding to the lower layer is arranged on the left and right sides of the upper layer. A demoulding mechanism is arranged above the lifting frame on the left side of the upper layer, and the water expansion mechanism is located behind the lower template; the water expansion machine uses clean water to expand the product, which has lower production costs, is more environmentally friendly, is more convenient to obtain materials, and has simpler subsequent cleaning operations; the processing method of the aluminum tube and the fin of the water expansion machine is a conventional method, in which a single aluminum tube is inserted into the hole of the fin, and then the port of the aluminum tube is passed through a U-shaped tube and connected in series by welding. Due to the complex process and high dependence on manual labor, this conventional method can no longer meet the production needs of enterprises. Although the water expansion method is also used to expand the tube, it is still necessary to A detachable plug needs to be installed at the front end of the aluminum tube. The problem is that water enters from one end of the aluminum tube and drains from the other end. It is only suitable for expanding a single aluminum tube and requires multiple water expansion mechanisms. The expansion sealing head of the water expansion mechanism is prone to misalignment when docking with the aluminum tube, resulting in damage to the aluminum tube and poor sealing. During the process of pressurization and pressure maintenance, it is easy to leak and cannot adapt to aluminum tubes with inconsistent lengths. Similarly, Chinese patent application No. 201721877432.6 discloses a water expansion machine, which includes: a mold conversion device and a water expansion device. The water expansion hydraulic cylinder of the water expansion device drives the water expansion device fixing frame and the water expansion connector to move, so that the water expansion connector cooperates with the end of the heat exchange tube. Although the other fin tube can be expanded while the sheet is laid, so that two stations can work simultaneously, there is the same problem as above, that is, the conventional single aluminum tube is expanded, and it cannot adapt to aluminum tubes with inconsistent lengths.

[0005] Chinese patent application numbers 201820026991.4, 201610369446.0 and 202020746998.0 all adopt a mechanical tube expansion method, which relies on the extension of the fins to mechanically force the aluminum tube to expand to the corresponding position, which cannot meet the needs of actual use. Therefore, a production equipment for an aluminum tube and aluminum fin evaporator is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the existing defects and provide a production equipment for aluminum tube and aluminum fin evaporator. The equipment changes the traditional tube expansion method of aluminum tube and aluminum fin evaporator. The equipment can produce products over 1.5 meters and ensure that the fins and pipelines fit tightly and the pipelines do not extend. No manual operation is required, and the inside of the aluminum tube is purged after tube expansion, which can effectively solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a production equipment for an aluminum tube and aluminum fin evaporator, comprising a feed slide, a lifting platform, an aluminum tube guide mechanism, a die assembly and a joint assembly, the die assembly is arranged on the lifting platform, the die assembly comprises a lower module, an upper module and a die frame, the joint surfaces of the upper module and the lower module are matched in the form of steps, and a clamping die hole is formed between the upper module and the lower module, the clamping die hole is set to two, and they are respectively clamping die hole one and clamping die hole two, the outer sides of the upper module and the lower module are respectively fixed with sensor one and sensor two, sensor one and sensor two correspond to clamping die hole one and clamping die hole two, the lower module is fixed to the die frame by screws, the die frame is fixed to the lifting platform, the die frame is provided with an electric cylinder three for driving the upper module to move up and down, the joint assembly is arranged on the feed slide, the feed slide is slidably connected to the lifting platform, the joint assembly is composed of a split rectangular block and a sealing butt joint, the split rectangular block is connected to a diverter block through a hose, the split rectangular block is threadedly connected to the sealing butt joint, the The butt joint corresponds to the pressing die hole, and the butt joint is composed of an extrusion cover, a joint body, an annular sealing gasket 2, an annular sealing gasket 1 and a protective ring. The right end head of the joint body is set as a conical structure, the annular sealing gasket 1, the protective ring, the annular sealing gasket 2 and the extrusion cover are sequentially worn on the joint body, the protective ring is threadedly connected to the joint body, the right ends of the annular sealing gasket 1 and the annular sealing gasket 2 are set as a conical structure, and a sealed docking channel is formed between the extrusion cover and the joint body. The aluminum tube guide mechanism is arranged on the right side of the die assembly, the aluminum tube guide mechanism includes a gradual closing mask and a floating ring, and a radial support spring is arranged between the inner circumferential direction of the floating ring and the gradual closing mask. The radial support spring plays a role of floating support for the gradual closing mask. A floating support frame is arranged at the lower part of the floating ring. Centering mechanisms are respectively arranged on both sides of the closing end of the gradual closing mask. The centering mechanism includes a centering guide plate, an electric cylinder 4 and a push plate. The centering guide plate is connected to the telescopic end of the electric cylinder 4, and the push plate is arranged on the centering guide plate. The centering guide plate corresponds to the arc pad at the closing end of the gradual closing mask.

[0008] Furthermore, two split rectangular blocks are provided, and they are split rectangular block one and split rectangular block two respectively. The split rectangular block one and the split rectangular block two have the same structure. An elastic bracket is provided on the back of the split rectangular block one. A movable guide column is passed through the elastic bracket. A limiting circular plate is provided at one end of the movable guide column. A vertical plate is connected to the other end of the limiting circular plate. The lower end of the vertical plate is fixed on the feed slide. A compression spring is passed through the movable guide column. The split rectangular block one is slidably connected to the feed slide. The sealing joints of the split rectangular block one and the split rectangular block two that are threadedly connected correspond to the clamping die hole one and the clamping die hole two respectively.

[0009] Furthermore, the split rectangular block is designed as an integral rectangular block, and ear plates are respectively arranged on the front and rear sides of the lower end of the integral rectangular block. A T-shaped slot is arranged on the surface of the feed slide, and a T-shaped screw is arranged in the T-shaped slot. The T-shaped screw is fixedly connected to the ear plate by a nut.

[0010] Furthermore, a slide plate frame is provided under the lifting platform, and guide rail frames are slidably connected to both sides of the slide plate frame, an electric cylinder five is provided on the guide rail frame, and the telescopic end of the electric cylinder five is connected to the slide plate frame, a guide bracket is provided on the upper surface of the lifting platform, a guide rod is provided on the guide bracket, and the feed slide is slidably connected to the guide rod, an electric cylinder one is provided on the lifting platform, and the telescopic end of the electric cylinder one is fixedly connected to the feed slide, and an electric cylinder two is fixed on the slide plate frame, and the telescopic end of the electric cylinder two is fixedly connected to the lifting platform.

[0011] Furthermore, guide rods are respectively arranged on both sides of the upper surface of the lower module, and the guide rods pass through the upper module to the top of the die frame. An upper clamping groove is arranged on the upper module, and a lower clamping groove is arranged on the lower module. The upper clamping groove and the lower clamping groove are combined to form a clamping die hole. The two ends of the clamping die hole are arranged to be trumpet openings, and a limiting block is arranged between the lower module and the upper module.

[0012] Furthermore, it also includes a high-pressure water system and an air intake system. The high-pressure water system includes a solenoid valve 1 and a water tank. The pump in the water tank is connected to the inlet of the solenoid valve 1 through a hose, and the outlet of the solenoid valve 1 is connected to the diverter block through a hose. The air intake system includes a solenoid valve 2, an air pump and a heating pipe. The outlet of the air pump is connected to the heating pipe, and the heating pipe is connected to the diverter block through the solenoid valve 2.

[0013] Furthermore, a guide support frame is arranged on the right side of the lifting platform, a slide rod bracket is fixed on the guide support frame, a slide rod is arranged on the slide rod bracket, a floating support frame is slidably connected to the slide rod, a correction plate is arranged at the lower end of the floating support frame, adaptive springs are arranged on both sides of the correction plate, and the adaptive spring, correction plate, floating support frame, slide rod bracket and slide rod together constitute a correction mechanism.

[0014] Furthermore, a centering frame is fixed on the guide support frame, the centering guide plate is slidably connected to the centering frame, and the electric cylinder four is fixed on the guide support frame.

[0015] Furthermore, threaded portion 1 and threaded portion 2 are provided on the joint body, threaded portion 2 is connected to the protective ring, threaded portion 1 is connected to the split rectangular block, an end sealing gasket is provided on the inner wall of the left end of the extrusion cover, and a chamfer is provided on the right port of the extrusion cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This equipment changes the traditional tube expansion method of aluminum tube and aluminum fin evaporator. Through this equipment, products over 1.5 meters can be produced and the fins and pipelines can be tightly fitted and the pipelines will not be extended. No manual operation is required, and the inside of the aluminum tube can be purged after the tube expansion.

[0018] 2. When the sealed joint is connected to the aluminum tube, the aluminum tube is guided by the aluminum tube guide mechanism, and the aluminum tube end and the pressing die hole can be adaptively corrected and aligned to adapt to the problem of inconsistency between the inlet and outlet ends of the aluminum tube. There is no manual operation, which improves accuracy and can effectively solve the problem of mismatch between the center of the aluminum tube port and the center of the pressing die hole.

[0019] 3. The equipment can expand and purge the tubes directly after the fins and aluminum tubes are assembled, saving labor to transport the evaporator again, saving processes, and avoiding unnecessary damage. Since the ends of the aluminum tubes may be inconsistent during the processing, the force-bearing movable guide pillars will undergo adaptive displacement during docking to adapt to the inconsistent lengths of the aluminum tubes. At the same time, under the action of the compression spring, the compression spring plays the role of an elastic support for the split rectangular block to prevent the problem of poor sealing due to looseness.

[0020] 4. The extrusion hood protects its outer circumference and limits the insertion depth of the aluminum tube port. The joint adopts an inner sealing and outer protection docking method, so that in the process of connecting with the aluminum tube, the annular sealing gasket 2 and the annular sealing gasket 1 seal the circumferential surface of the aluminum tube port, and the end sealing gasket seals the aluminum tube port. The double-layer sealing structure ensures reliable sealing.

[0021] 5. The equipment can be set between the mobile frame and the fin positioning table. The extension and retraction of the electric cylinder 2 can drive the lifting platform to be hidden on the frame of the tube tensioning mechanism assembly table, and can be perfectly combined with the tube tensioning mechanism. A guard plate is provided on the outside of the frame for protection. The hidden mode of the equipment does not affect the assembly of the aluminum tube and the fin. It can be realized on one device. The assembly, expansion and purging of the aluminum tube and the fin do not require manual operation, which saves labor and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a front view structural schematic diagram of the present invention;

[0024] Figure 3 The axonometric diagram of the invention is shown without the aluminum tube guide mechanism;

[0025] Figure 4 This is an axonometric view of the aluminum tube guide machine of the present invention;

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the gradual shrinking mask of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the split joint assembly of the present invention;

[0028] Figure 7This is a schematic diagram of the sealing joint structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the connector body of the present invention;

[0030] Fig. 9 This is a schematic diagram of the structure of the present invention without the extrusion cover;

[0031] Fig.10 It is a schematic diagram of the cross-sectional structure of the sealing joint of the present invention;

[0032] Fig.11 An isometric view of the installation of the split joint assembly of the present invention;

[0033] Fig.12 An isometric view of the integrated joint assembly of the present invention;

[0034] Fig.13 It is an axonometric view of the integral joint assembly of the present invention;

[0035] Fig.14 It is a front view structural schematic diagram of the integral joint of the present invention;

[0036] Fig.15 It is a schematic diagram of the assembly of the aluminum tube and the fin of the present invention.

[0037] In the figure: 1 water tank, 2 feed slide, 3 lifting platform, 4 slide frame, 5 aluminum tube guide mechanism, 6 die assembly, 7 joint assembly, 8 high pressure water system, 9 air intake system, 10 air pump, 11 heating pipe, 12 electric cylinder 1, 13 guide rod, 14 guide bracket, 15 electric cylinder 2, 16 limit block, 17 clamping die hole 1, 18 lower module, 19 sensor 2, 20 clamping die hole 2, 21 guide rod, 22 upper module, 23 electric cylinder 3, 24 sensor 1, 25 centering frame, 26 centering guide plate, 27 electric cylinder 4, 28 push plate, 29 floating support frame, 30 slide rod, 31 guide support frame, 32 slide rod bracket, 33 gradient Receiver cover, 34 radial support spring, 35 floating ring, 36 arc pad, 37 adaptive spring, 38 return plate, 39 split rectangular block one, 40 sealed joint, 41 split rectangular block two, 42 limit circular plate, 43 movable guide column, 44 elastic bracket, 45 compression spring, 46 vertical plate, 47 extrusion cover, 48 joint body, 49 wrench part, 50 threaded part one, 51 threaded part two, 52 annular sealing gasket two, 53 protective ring, 54 annular sealing gasket one, 55 end sealing gasket, 56 sealed docking channel, 57 valve bracket, 58 solenoid valve two, 59 solenoid valve one, 60 diverter block, 61 integral rectangular block, 62 T-shaped screw, 63 ear plate, 64 T-shaped slot, 65 die holder, 66 upper clamping slot, 67 lower clamping slot, 68 guide rail holder, 69 electric cylinder five. DETAILED DESCRIPTION

[0038] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] See also Figure 1-15The present invention provides a technical solution: a production device for an aluminum tube and aluminum fin evaporator, comprising a feed slide 2, a lifting platform 3, an aluminum tube guide mechanism 5, a die assembly 6 and a joint assembly 7. The die assembly 6 is arranged on the lifting platform 3. The die assembly 6 serves to fix the inlet end and the outlet end of the aluminum tube of the evaporator respectively, so as to prevent the problem of loose sealing caused by loose fixation during the sealing and docking process. Specifically, the die assembly 6 comprises a lower module 18, an upper module 22 and a die frame 65. The joint surfaces of the upper module 22 and the lower module 18 are matched in the form of steps, and a pressing die hole is formed between the upper module 22 and the lower module 18. The pressing die hole is used to penetrate the aluminum tube and fix it by merging the upper module 22 with the lower module 18. The pressing die hole is provided There are two, which are respectively a pressing die hole 17 and a pressing die hole 20. Sensor 1 24 and sensor 2 19 are fixed on the outer sides of the upper module 22 and the lower module 18, respectively. Sensor 1 24 and sensor 2 19 correspond to pressing die hole 17 and pressing die hole 20, respectively. The sensors are used to detect the aluminum tube ports on the outer sides of the pressing die holes. Since the inlet and outlet ends of the evaporator aluminum tube are designed to be staggered, the pressing die hole 17 and the pressing die hole 20 are respectively arranged on the upper table and the lower table, so that they can correspond to the inlet and outlet ends of the evaporator aluminum tube, respectively. The pressing die hole 17 and the pressing die hole 20 are respectively used to fix the inlet and outlet ends of the evaporator aluminum tube. The lower module 18 is fixed to the pressing die frame 65 by screws, and the pressing die frame 65 is fixed on the lifting platform 3. On the die frame 65, an electric cylinder 3 23 for driving the upper module 22 to move up and down is arranged, and the joint assembly 7 is arranged on the feed slide 2, and the feed slide 2 is slidably connected with the lifting platform 3. The joint assembly 7 is composed of a split rectangular block and a sealing joint 40, and the split rectangular block is connected with a diverter block 60 through a hose, and the diverter block 60 is connected with a high-pressure water system 8 and an air intake system 9. A channel is arranged inside the diverter block 60, and the channel is a three-way structure. This part of the conventional structure is not described in detail here. The split rectangular block is threadedly connected with the sealing joint 40, and the joint 40 corresponds to the pressing die hole. The joint 40 is composed of an extrusion cover 47, a joint body 48, an annular sealing gasket 2 52, an annular sealing gasket 1 54 and a protective ring 53. The right end head of the joint body 48 is set The conical structure plays a guiding role in the docking process to ensure that the docking joint 40 is smoothly inserted into the port of the aluminum tube. The annular seal 54, the protective ring 53, the annular seal 52 and the extrusion cover 47 are sequentially worn on the joint body 48. The protective ring 53 is threadedly connected to the joint body 48. The annular seal 54 can be pressed by the protective ring 53 to make it firmly fixed to ensure the sealing effect. The right ends of the annular seal 54 and the annular seal 52 are set to a conical structure, which is convenient for the docking joint 40 to be inserted into the port of the evaporator aluminum tube, plays a guiding and sealing role, and is in close contact with the inner wall of the aluminum tube to ensure the sealing effect and prevent leakage in the expansion tube and the blow tube. A sealed docking channel 56 is formed between the extrusion cover 47 and the joint body 48.The port of the aluminum tube is inserted into the docking channel 56, and its outer circumference is protected by the extrusion cover 47, and the insertion depth of the port of the aluminum tube is limited. The docking method of the joint 40 with internal sealing and external protection is adopted, so that in the process of connecting with the aluminum tube, the structure is stable and the sealing effect is good; the aluminum tube guide mechanism 5 is arranged on the right side of the die assembly 6, and the aluminum tube guide mechanism 5 includes a gradual sealing cover 33 and a floating ring 35. A radial support spring 34 is arranged between the inner circumferential direction of the floating ring 35 and the gradual sealing cover 33. The radial support spring 34 plays a role of floating support for the gradual sealing cover 33. Since the evaporator aluminum tube is processed by bending equipment, after the assembly of the aluminum tube and the fin is completed, the end of the evaporator aluminum tube is not necessarily corresponding to the center of the pressing die hole. The gradual sealing cover 33 guides the aluminum tube and makes the center of the aluminum tube correspond to the pressing die hole. In order to avoid hard contact with the aluminum tube port, the radial support spring 34 is provided between the inner circumferential direction of the floating ring 35 and the gradual sealing cover 33. The radial support spring 34 plays the role of floating support for the gradual closing mask 33. In order to prevent the aluminum tube port from being deformed due to force, the gradual closing mask 33 reduces the force on the aluminum tube port through the radial support spring 34, plays the role of adaptive external force, and can effectively solve this problem. A floating support frame 29 is arranged at the lower part of the floating ring 35. A centering mechanism is arranged on both sides of the closing end of the gradual closing mask 33. The centering mechanism includes a centering guide plate 26, an electric cylinder 27 and a push plate 28. The centering guide plate 26 is connected to the telescopic end of the electric cylinder 27. The push plate 28 is arranged on the centering guide plate 26. The centering guide plate 26 corresponds to the arc pad 36 at the closing end of the gradual closing mask 33. When the sensor detects the aluminum tube port, the centering mechanism is activated, and the electric cylinders 27 on both sides of the closing end of the gradual closing mask 33 are activated respectively to center the lower end of the gradual closing mask 33 so that the center of the aluminum tube corresponds to the pressing die hole.

[0040] There is a channel in the split rectangular block for circulating gas or liquid, which is connected to the sealing joint 40. The split rectangular block is set to two, and they are split rectangular block 1 39 and split rectangular block 2 41. The split rectangular block 1 39 and the split rectangular block 2 41 have the same structure. An elastic bracket 44 is set on the back of the split rectangular block 1 39. A movable guide column 43 is passed through the elastic bracket 44. A limited circular plate 42 is set at one end of the movable guide column 43. The other end of the limited circular plate 42 is connected to a vertical plate 46. The lower end of the vertical plate 46 is fixed on the feed slide 2. A compression spring 45 is passed through the movable guide column 43. The compression spring 45 is located between the vertical plate 46 and the elastic bracket 44. During docking, the force-bearing movable guide column 43 undergoes adaptive displacement, and the compression spring 45 plays the role of elastic support for the split rectangular block 39 to prevent the problem of poor sealing due to looseness. The split rectangular block 39 is slidably connected to the feed slide 2, and the sealing joint 40 threadedly connected between the split rectangular block 1 39 and the split rectangular block 2 41 corresponds to the clamping die hole 17 and the clamping die hole 20 respectively. Since the aluminum tube may have inconsistent ends during the processing, the two independent split rectangular blocks 1 39 and the split rectangular block 2 41 are used under the action of the compression spring 45 to achieve reliable sealing docking, effectively solving the problem of inconsistent ports.

[0041] The split rectangular block can also be set as an integral structure. With the improvement of processing technology, the consistency of products is improved. The overall structure is simple and can meet production renewal. The split rectangular block is designed as an integral structure. The split rectangular block is designed as an integral rectangular block 61. Ear plates 63 are respectively arranged on the front and rear sides of the lower end of the integral rectangular block 61. A T-slot 64 is arranged on the surface of the feed slide 2. A T-slot 62 is arranged in the T-slot 64. The T-slot 64 is fixedly connected with the ear plate 63 by a nut. The position of the integral rectangular block 61 on the feed slide 2 is changed by loosening the nut to meet the fixing requirements of the inlet and outlet ports of aluminum tubes of different lengths, thereby improving the practicality of the device.

[0042] A slide frame 4 is arranged below the lifting platform 3, and guide rail frames 68 are slidably connected on both sides of the slide frame 4. An electric cylinder 5 69 is arranged on the guide rail frame 68, and the telescopic end of the electric cylinder 5 69 is connected to the slide frame 4. The slide frame 4 and the mechanism thereon can be moved as a whole through the telescopic movement of the electric cylinder 5 69, so as to guide and press the aluminum tube. The guide rail frame 68 is fixed to the frame of the tensioning mechanism assembly platform by screws, and the device is arranged between the mobile frame and the fin positioning platform, so as to realize the sliding connection between the slide frame 4 and the frame of the tube tensioning mechanism assembly platform. A guide bracket 14 is arranged on the upper surface of the lifting platform 3, and a guide rod 13 is arranged on the guide bracket 14. The feed slide 2 is slidably connected to the guide rod 13, and the lifting platform 3 is provided with a guide bracket 14. An electric cylinder 12 is provided, and the telescopic end of the electric cylinder 12 is fixedly connected to the feed slide 2. The telescopic end of the electric cylinder 12 can drive the feed slide 2 to move, realize the movement of the joint assembly 7, and can push the sealing joint 40 to combine and separate with the aluminum tube port. An electric cylinder 2 15 is fixed on the slide frame 4. The telescopic end of the electric cylinder 2 15 is fixedly connected to the lifting platform 3. The telescopic movement of the electric cylinder 2 15 can drive the lifting platform 3 to be hidden on the frame of the tube threading tensioning mechanism assembly table. A guard plate is provided on the outside of the frame for protection. The concealable mode of the equipment does not affect the assembly of the aluminum tube and the fin, and can be realized on one device. The assembly, expansion and purging of the aluminum tube and the fin do not require manual operation, thereby saving labor and improving work efficiency.

[0043] Guide rods 21 are respectively provided on both sides of the upper surface of the lower module 18. The guide rods 21 pass through the upper module 22 to the top of the die frame 65. The guide rods 21 guide the upper module 22 to enable it to run accurately. An upper clamping groove 66 is provided on the upper module 22, and a lower clamping groove 67 is provided on the lower module 18. The upper clamping groove 66 and the lower clamping groove 67 are combined to form a clamping die hole. The two ends of the clamping die hole are set to a trumpet opening shape. This shape is conducive to the insertion of the aluminum tube and prevents the aluminum tube port from hitting the wall. A limit block 16 is set between the lower module 18 and the upper module 22. The limit block 16 is used to limit the distance between the lower module 18 and the upper module 22 to prevent the aluminum tube from being deformed by compression.

[0044] The high-pressure water system 8 includes a solenoid valve 59 and a water tank 1. The pump in the water tank 1 is connected to the inlet of the solenoid valve 59 through a hose. The outlet of the solenoid valve 59 is connected to the diverter block 60 through a hose. The air intake system 9 includes a solenoid valve 58, an air pump 10 and a heating pipe 11. The outlet of the air pump 10 is connected to the heating pipe 11. The heating pipe 11 is connected to the diverter block 60 through the solenoid valve 58. The switching of air supply and water supply can be achieved through the solenoid valve 58 and the solenoid valve 59. Heating the gas through the heating pipe 11 is conducive to the rapid volatilization of heat. In this system, the pipelines used are all hoses, which will not affect the movement of the feed slide 2.

[0045] A guide support frame 31 is arranged on the right side of the lifting platform 3, a slide rod support 32 is fixed on the guide support frame 31, a slide rod 30 is arranged on the slide rod support 32, a floating support frame 29 is slidably connected with the slide rod 30, a return plate 38 is arranged at the lower end of the floating support frame 29, and adaptive springs 37 are arranged on both sides of the return plate 38, respectively, and the adaptive spring 37, the return plate 38, the floating support frame 29, the slide rod support 32 and the slide rod 30 together constitute a return mechanism, and the gradual collection cover 33 is in the electric cylinder 5 69 moves, the gradual closing mask 33 will contact the aluminum tube port. At this time, the aluminum tube guide mechanism 5 will be subjected to left and right forces as a whole. Under the action of this force, the adaptive spring 37 will be slightly compressed, so that the force of the adaptive aluminum tube guide mechanism 5 on the aluminum tube port will not be in hard contact. When the force disappears after the aluminum tube is centered, the adaptive spring 37 will automatically drive the gradual closing mask 33 to return to the center, ensuring that the electric cylinder four 27 is accurately centered on the closing end of the gradual closing mask 33 through the centering guide plate 26.

[0046] A centering frame 25 is fixed on the guide support frame 31 , a centering guide plate 26 is slidably connected to the centering frame 25 , and an electric cylinder 27 is fixed on the guide support frame 31 .

[0047] A threaded portion 1 50 and a threaded portion 2 51 are provided on the joint body 48, the threaded portion 2 51 is connected to the protective ring 53, the threaded portion 1 50 is connected to the split rectangular block, and an end sealing gasket 55 is provided on the inner wall of the left end of the extrusion cover 47, and the aluminum tube port is sealed by the end sealing gasket 55 to further improve the sealing effect and prevent water leakage and air leakage. When the thread of the joint body 48 is tightened, the annular sealing gasket 1 54, the protective ring 53, the annular sealing gasket 2 52 and the extrusion cover 47 are reliably connected together through the extrusion force of the thread, and the right port of the extrusion cover 47 is provided with a chamfer. This structure facilitates the aluminum tube to smoothly enter the sealing docking channel 56, and the sealing docking channel 56 cooperates with the annular sealing gasket 2 52 and the annular sealing gasket 1 54 to achieve sealing of the circumferential surface of the aluminum tube. The double-layer sealing structure ensures reliable sealing.

[0048] When in use: after the aluminum tube and the fin are assembled, the electric cylinder 2 15 is extended and retracted to drive the lifting platform 3 to rise. After reaching the specified height, the electric cylinder 5 69 is extended and retracted to drive the slide frame 4 to move right as a whole. At this time, the gradual collection mask 33 moves toward the aluminum tube port. During the movement, the aluminum tube port contacts the inner wall of the gradual collection mask 33. The radial support spring 34 plays the role of floating support for the gradual collection mask 33, which can withstand forces from different directions of the aluminum tube and play the role of adaptive external force. At the same time, the adaptive spring 37 of the correcting mechanism will also move. The adaptive spring 37 is slightly compressed and mainly bears the force from the rightward movement of the gradual collection mask 33. When the force disappears after the aluminum tube is centered, the adaptive spring 37 will automatically drive the gradual collection mask 3 3. When the sensor detects the aluminum tube port, the electric cylinder 4 27 is activated. The electric cylinder 4 27 accurately centers the closing end of the gradient closing mask 33 through the centering guide plate 26, and the aluminum tube is accurately inserted into the pressing die hole. The electric cylinder 3 23 drives the upper module 22 to press down to press the aluminum tube. At this time, the telescopic end of the electric cylinder 12 can drive the feed slide 2 to move, so as to realize the movement of the joint assembly 7, and can push the sealing joint 40 to combine with the aluminum tube port. First, the solenoid valve 1 59 is opened, and water is passed into the aluminum tube, and then the pressure is maintained for a period of time and then closed. At this time, the expansion work has been completed, and the solenoid valve 2 58 is opened to purge the aluminum tube. After completion, the electric cylinder 12 contracts, and the sealing joint 40 is separated from the aluminum tube port to complete the expansion and purge work.

[0049] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which all fall within the scope of the present invention to be protected.

Claims

1. A production device for an aluminum tube and aluminum fin evaporator, comprising a feed slide (2), a lifting platform (3), an aluminum tube guide mechanism (5), a die assembly (6) and a joint assembly (7), characterized in that: The die assembly (6) is arranged on the lifting platform (3), and the die assembly (6) includes a lower die block (18), an upper die block (22) and a die frame (65). The joint surfaces of the upper die block (22) and the lower die block (18) are matched in the form of steps, and a clamping die hole is formed between the upper die block (22) and the lower die block (18). The number of the clamping die holes is two, namely, clamping die hole 1 (17) and clamping die hole 2 (20). Sensor 1 (24) and sensor 2 (19) are fixed to the outer sides of the upper die block (22) and the lower die block (18), respectively. Sensor 1 (24) and sensor 2 (19) correspond to clamping die hole 1 (17) and clamping die hole 2 (20), respectively. The lower die block ( 18) is fixed to the die frame (65) by screws, the die frame (65) is fixed to the lifting platform (3), the die frame (65) is provided with an electric cylinder three (23) for driving the upper module (22) to move up and down, the joint assembly (7) is arranged on the feed slide (2), the feed slide (2) is slidably connected to the lifting platform (3), the joint assembly (7) is composed of a split rectangular block and a sealing butt joint (40), the split rectangular block is connected to the diverter block (60) through a hose, the split rectangular block is threadedly connected to the sealing butt joint (40), the butt joint (40) corresponds to the pressing die hole, and the butt joint (40) is composed of an extrusion cover (47), a joint body (48), an annular sealing gasket two (52), The joint body (48) is composed of an annular sealing gasket (54) and a protective ring (53). The right end head of the joint body (48) is set as a conical structure. The annular sealing gasket (54), the protective ring (53), the annular sealing gasket (52) and the extrusion cover (47) are sequentially inserted into the joint body (48). The protective ring (53) is threadedly connected to the joint body (48). The right ends of the annular sealing gasket (54) and the annular sealing gasket (52) are set as conical structures. A sealed docking channel (56) is formed between the extrusion cover (47) and the joint body (48). The aluminum tube guide mechanism (5) is set on the right side of the die assembly (6). The aluminum tube guide mechanism (5) includes a gradual shrinkage cover (33) and a floating ring (35 ), a radial support spring (34) is arranged between the inner circumferential direction of the floating ring (35) and the gradual closing cover (33), and the radial support spring (34) plays a role in floating support of the gradual closing cover (33). A floating support frame (29) is arranged at the lower part of the floating ring (35). Centering mechanisms are respectively arranged on both sides of the closing end of the gradual closing cover (33). The centering mechanism includes a centering guide plate (26), an electric cylinder four (27) and a push plate (28). The centering guide plate (26) is connected to the telescopic end of the electric cylinder four (27), and the push plate (28) is arranged on the centering guide plate (26). The centering guide plate (26) corresponds to the arc-shaped pad (36) at the closing end of the gradual closing cover (33).

2. The production equipment of an aluminum tube and aluminum fin evaporator according to claim 1, characterized in that: Two split rectangular blocks are provided, namely split rectangular block 1 (39) and split rectangular block 2 (41). The split rectangular block 1 (39) and the split rectangular block 2 (41) have the same structure. An elastic bracket (44) is provided on the back of the split rectangular block 1 (39). A movable guide column (43) is inserted into the elastic bracket (44). A limiting circular plate (42) is provided at one end of the movable guide column (43). A vertical plate (46) is connected to the other end of the limiting circular plate (42). The lower end of the vertical plate (46) is fixed on the feed slide (2). A compression spring (45) is inserted into the movable guide column (43). The split rectangular block 1 (39) is slidably connected to the feed slide (2). The sealing joint (40) threadedly connected between the split rectangular block 1 (39) and the split rectangular block 2 (41) corresponds to the first pressing die hole (17) and the second pressing die hole (20) respectively.

3. The production equipment of an aluminum tube and aluminum fin evaporator according to claim 1, characterized in that: The split rectangular block is designed as an integral rectangular block (61), and ear plates (63) are respectively arranged on the front and rear sides of the lower end of the integral rectangular block (61). A T-shaped groove (64) is arranged on the surface of the feed slide (2), and a T-shaped screw (62) is arranged in the T-shaped groove (64). The T-shaped screw (62) and the ear plate (63) are fixedly connected by a nut.

4. The production equipment of an aluminum tube and aluminum fin evaporator according to claim 1, characterized in that: A slide frame (4) is arranged below the lifting platform (3), and guide rail frames (68) are slidably connected to both sides of the slide frame (4). An electric cylinder five (69) is arranged on the guide rail frame (68), and the telescopic end of the electric cylinder five (69) is connected to the slide frame (4). A guide bracket (14) is arranged on the upper surface of the lifting platform (3), and a guide rod (13) is arranged on the guide bracket (14). The feed slide (2) is slidably connected to the guide rod (13). An electric cylinder one (12) is arranged on the lifting platform (3), and the telescopic end of the electric cylinder one (12) is fixedly connected to the feed slide (2). An electric cylinder two (15) is fixedly connected to the slide frame (4), and the telescopic end of the electric cylinder two (15) is fixedly connected to the lifting platform (3).

5. The production equipment of the aluminum tube and aluminum fin evaporator according to claim 1, characterized in that: Guide rods (21) are respectively arranged on both sides of the upper surface of the lower module (18), and the guide rods (21) pass through the upper module (22) to the top of the die frame (65). The upper module (22) is provided with an upper clamping groove (66), and the lower module (18) is provided with a lower clamping groove (67). The upper clamping groove (66) and the lower clamping groove (67) are combined to form a clamping die hole. The two ends of the clamping die hole are arranged in a trumpet opening shape. A limit block (16) is arranged between the lower module (18) and the upper module (22).

6. The production equipment of the aluminum tube and aluminum fin evaporator according to claim 1, characterized in that: The invention also comprises a high-pressure water system (8) and an air intake system (9). The high-pressure water system (8) comprises a solenoid valve 1 (59) and a water tank (1). The pump in the water tank (1) is connected to the inlet of the solenoid valve 1 (59) via a hose. The outlet of the solenoid valve 1 (59) is connected to a diverter block (60) via a hose. The air intake system (9) comprises a solenoid valve 2 (58), an air pump (10) and a heating pipe (11). The outlet of the air pump (10) is connected to the heating pipe (11). The heating pipe (11) is connected to the diverter block (60) via the solenoid valve 2 (58).

7. The production equipment of the aluminum tube and aluminum fin evaporator according to claim 4, characterized in that: A guide support frame (31) is arranged on the right side of the lifting platform (3), a slide bar bracket (32) is fixed on the guide support frame (31), a slide bar (30) is arranged on the slide bar bracket (32), a floating support frame (29) is slidably connected to the slide bar (30), a return plate (38) is arranged at the lower end of the floating support frame (29), and adaptive springs (37) are arranged on both sides of the return plate (38), respectively, and the adaptive spring (37), the return plate (38), the floating support frame (29), the slide bar bracket (32) and the slide bar (30) together constitute a return mechanism.

8. The production equipment of the aluminum tube and aluminum fin evaporator according to claim 7, characterized in that: A centering frame (25) is fixed on the guide support frame (31), a centering guide plate (26) is slidably connected to the centering frame (25), and an electric cylinder four (27) is fixed on the guide support frame (31).

9. The production equipment of the aluminum tube and aluminum fin evaporator according to claim 1, characterized in that: The joint body (48) is provided with a first threaded portion (50) and a second threaded portion (51), the second threaded portion (51) is connected to a protective ring (53), the first threaded portion (50) is connected to the split rectangular block, an end sealing gasket (55) is provided on the inner wall of the left end of the extrusion cover (47), and a chamfer is provided on the right end of the extrusion cover (47).

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