Air conditioner heat exchanger penetrating and expanding device

Abstract

The invention relates to an air conditioner heat exchanger penetrating and expanding device, and relates to the technical field of air conditioner manufacturing. The pipe penetrating assembly line is arranged on one side of the lifting platform, a pipe expander is arranged between the pipe penetrating assembly line and the buffering assembly line, a photoelectric sensor is arranged at one end of the pipe penetrating assembly line, and the pipe penetrating assembly line is used for conveying heat exchange fins; the mounting support is arranged at the bottom of the pipe penetrating assembly line, the upsetting plate is fixedly mounted above the mounting support, and the supporting plate is fixedly arranged on the surface of the upsetting plate; through operation connection among the pipe penetrating assembly line, the pipe expander and the lifting platform, the bending action that workers in the pipe penetrating procedure move materials down from the pipe penetrating assembly line is avoided, the labor intensity of the workers is reduced, and meanwhile the probability that the heat exchanger reversion defect is caused in the turnover process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air-conditioning manufacturing, and in particular to an air-conditioning heat exchanger expansion device. Background Art

[0002] The air conditioning heat exchanger is an important component in the air conditioning system. It is used to achieve heat transfer and exchange. When cooling, it absorbs the heat in the room and transfers it to the outside. When heating, it absorbs the heat outside and transfers it to the room, so as to achieve the purpose of regulating the indoor temperature. In the assembly of the air conditioning heat exchanger, there are mainly processes such as fin punching, tube threading, and tube expansion.

[0003] In the prior art, when assembling the air-conditioning heat exchanger, the fin punching, tube threading and tube expansion processes are all single-process operations. After each process is completed, the logistics personnel use a forklift to transfer the materials to the next process. The employees need to bend over frequently to load and unload materials, which is labor-intensive and can easily cause heat exchanger flipping defects during the turnover process. In addition, in order to ensure the consistency of the tube mouths during the tube expansion process, the employees are required to flush the U-tube mouths of the two devices downward before expanding the tubes, and then perform the tube expansion operation on the tube expander. The process is cumbersome and the efficiency is low. Summary of the invention

[0004] The present invention provides an air-conditioning heat exchanger expansion device, which is used to solve the problem that material transportation causes high labor intensity for employees and easily causes heat exchanger inversion defects during transportation, and at the same time solves the problem that the U-tube openings of two devices need to be flushed downward before expansion, resulting in low efficiency.

[0005] The present invention provides an air-conditioning heat exchanger expansion device, comprising:

[0006] A lifting platform, the lifting platform is used to store materials, and a buffer line is provided on one side of the lifting platform, the buffer line is used to transport the materials stored on the lifting platform;

[0007] A tube threading line, which is arranged on one side of the lifting platform, is arranged vertically with the buffer line, a tube expander is arranged between the tube threading line and the buffer line, a photoelectric sensor is arranged at one end of the tube threading line, and is used to transport heat exchange fins;

[0008] A mounting support is provided at the bottom of the pipe threading line, a pier plate is fixedly installed above the mounting support, a support plate is fixedly provided on the surface of the pier plate, and the support plate is used to support the heat exchange fins.

[0009] Preferably, a limiting structure for limiting the position of materials is provided on the surface of the lifting platform, and a sensing mechanism for sensing the placement height of materials is installed on the lifting platform.

[0010] Preferably, the height of the cache pipeline matches the height of the lifting platform.

[0011] Preferably, the tube threading line is arranged at an angle, and a forklift pallet is arranged at one end of the tube threading line away from the lifting platform, and the forklift pallet is used to store the heat exchange fins.

[0012] Preferably, a copper tube storage box is fixedly installed above the tube threading assembly line, and a U-tube is placed inside the copper tube storage box.

[0013] Preferably, the tube expander is arranged on a side of the lifting platform close to the buffer assembly line.

[0014] Preferably, the photoelectric sensor is arranged at the delivery end of the tube threading assembly line, and the photoelectric sensor is used to sense the position of the material.

[0015] Preferably, the heat exchange fins and the U-tubes are assembled on the surface of the tube threading line to form a semi-finished heat exchanger.

[0016] Preferably, the mounting support is located below the pipe threading line, and the upper surface of the mounting support is flush with the surface of the pipe threading line.

[0017] Preferably, the support plate is arranged on a side of the pier plate close to the pipe threading line.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. Through the operational connection between the tube threading line, tube expander and lifting platform, the workers in the tube threading process avoid bending down to move materials from the tube threading line, which reduces the labor intensity of the workers and the probability of heat exchanger reversal defects during the turnover process.

[0020] 2. During the tube threading operation, after placing the heat exchange fins above the tube threading line, the bottom of the heat exchange fins abuts against the support plate, and then the U-tube is inserted into the interior of the heat exchange fins, so that the end of the U-tube passes through the heat exchange fins and abuts against the pier plate, thereby ensuring that the leakage length of the copper tube of the material to be expanded is consistent, avoiding the problem of buckling the U-tube to the lower pier before expanding the tube, simplifying the operation process and improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0022] Figure 1 It is a front view schematic diagram of the air-conditioning heat exchanger expansion device of the present invention;

[0023] Figure 2 The invention is an air conditioning heat exchanger expansion device Figure 1 The enlarged schematic diagram at A in the middle;

[0024] Figure 3 It is a left side schematic diagram of the air-conditioning heat exchanger expansion device of the present invention;

[0025] Figure 4 is a schematic top view of the air-conditioning heat exchanger expansion device of the present invention;

[0026] Figure 5 Schematic diagram of a fourth embodiment of the air-conditioning heat exchanger expansion device of the present invention;

[0027] Reference numerals:

[0028] Lifting platform 1, buffer assembly line 2, tube expander 3, copper tube storage box 4, U tube 5, heat exchange fin 6, forklift pallet 7, heat exchanger semi-finished product 8;

[0029] Pipe threading line 9, mounting support 91, pier plate 92, support plate 93;

[0030] Photoelectric sensor 10. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0032] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0033] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0036] The present invention provides an air conditioning heat exchanger expansion device, comprising:

[0037] A lifting platform 1, the lifting platform 1 is used to store materials, a limiting structure for limiting the position of the materials is provided on the surface of the lifting platform 1, and a sensing mechanism for sensing the height of the material is installed on the lifting platform 1;

[0038] A buffer assembly line 2 is provided on one side of the lifting platform 1. The height of the buffer assembly line 2 matches the height of the lifting platform 1. The buffer assembly line 2 is used to transport the materials stored on the lifting platform 1.

[0039] A pipe threading line 9, wherein the pipe threading line 9 is arranged on one side of the lifting platform 1, the pipe threading line 9 is arranged obliquely, and a forklift pallet 7 is arranged at one end of the pipe threading line 9 away from the lifting platform 1;

[0040] A copper tube storage box 4 is fixedly installed above the tube threading assembly line 9, and a U tube 5 is placed inside the copper tube storage box 4;

[0041] The pipe threading line 9 is arranged vertically with the buffer line 2, and a pipe expander 3 is arranged between the pipe threading line 9 and the buffer line 2. The pipe expander 3 is arranged on one side of the lifting platform 1 close to the buffer line 2;

[0042] A photoelectric sensor 10 is provided at one end of the tube threading line 9. The photoelectric sensor 10 is provided at the delivery end of the tube threading line 9. The photoelectric sensor 10 is used to sense the position of the material. The tube threading line 9 is used to transport the heat exchange fins 6.

[0043] The forklift pallet 7 is used to store the heat exchange fins 6, and the heat exchange fins 6 and the U-tubes 5 are assembled on the surface of the tube threading line 9 into a semi-finished heat exchanger 8;

[0044] A mounting support 91, wherein the mounting support 91 is disposed at the bottom of the pipe threading line 9, the mounting support 91 is located below the pipe threading line 9, and the upper surface of the mounting support 91 is flush with the surface of the pipe threading line 9;

[0045] A pier plate 92 is fixedly installed above the mounting support 91, and a support plate 93 is fixedly provided on the surface of the pier plate 92. The support plate 93 is arranged on a side of the pier plate 92 close to the pipe threading line 9, and the support plate 93 is used to support the heat exchange fins 6.

[0046] Embodiment 1:

[0047] Reference Figure 1 As shown, Figure 1 It is a front view schematic diagram of the air-conditioning heat exchanger expansion device of the present invention;

[0048] Reference Figure 2 As shown, Figure 2 The invention is an air conditioning heat exchanger expansion device Figure 1 The enlarged schematic diagram at A in the middle;

[0049] Reference Figure 3 As shown, Figure 3 It is a left side schematic diagram of the air-conditioning heat exchanger expansion device of the present invention;

[0050] Reference Figure 4 As shown, Figure 4 is a schematic top view of the air-conditioning heat exchanger expansion device of the present invention;

[0051] Reference Figure 1-Figure 4 As shown, the present invention provides an air conditioning heat exchanger expansion device, comprising:

[0052] Lifting platform 1, buffer assembly line 2, tube expander 3, tube threading assembly line 9;

[0053] The buffer assembly line 2 is arranged in the horizontal direction of the lifting platform 1, the tube threading assembly line 9 is arranged in the vertical direction of the lifting platform 1, the tube expander 3 is arranged between the lifting platform 1 and the tube threading assembly line 9, and the tube expander 3 is located on the side of the lifting platform 1 close to the buffer assembly line 2, so that an operating space is reserved between the lifting platform 1 and the tube threading assembly line 9, which is convenient for employees to transfer materials between the tube threading assembly line 9, the tube expander 3, and the lifting platform 1 when performing tube expansion operations;

[0054] The forklift pallet 7 storing the heat exchange fins 6 is transported to the end of the tube threading line 9 away from the tube expander 3 by a forklift, so as to facilitate the loading of materials by the staff;

[0055] When threading the pipe, three employees stand in a group at the position of the pipe threading line 9 in turn. The first employee takes the heat exchange fin 6 from the forklift pallet 7 and puts it on the pipe threading line 9. Then the three employees take a group of U-tubes 5 from the inside of the copper tube storage box 4, and insert the U-tubes 5 into the inside of the heat exchange fin 6, so that the U-tubes 5 and the heat exchange fin 6 form a heat exchanger semi-finished product 8. The heat exchanger semi-finished product 8 is transported by the pipe threading line 9 and moves to the position of the photoelectric sensor 10;

[0056] After the photoelectric sensor 10 senses the semi-finished heat exchanger 8, it controls the tube threading line 9 to stop. At this time, the staff of the tube expansion process takes the semi-finished heat exchanger 8 and puts it on the tube expander 3 for tube expansion. The staff conducts an appearance inspection on the material that has completed the tube expansion operation and puts the material on the lifting platform 1. When the sensing mechanism on the lifting platform 1 senses that the material has reached a certain height, the material on the lifting platform 1 is transferred to the buffer line 2 for transportation;

[0057] Through the operational connection between the tube threading line 9, the tube expander 3, and the lifting platform 1, the employees in the tube threading process avoid bending down to move materials from the tube threading line 9, thereby reducing the labor intensity of the employees and the probability of heat exchanger reversal defects during the turnover process.

[0058] Embodiment 2:

[0059] Based on Example 1, refer to Figure 2 As shown, an air conditioning heat exchanger expansion device also includes:

[0060] Install the support 91, the pier plate 92, and the support plate 93;

[0061] The mounting support 91 is arranged on the lower side of the pipe threading assembly line 9, and the upper surface of the mounting support 91 is flush with the upper surface of the pipe threading assembly line 9, and the pier plate 92 is vertically fixed to the upper surface of the mounting support 91, so that the pier plate 92 is perpendicular to the upper surface of the pipe threading assembly line 9, and the support plate 93 is vertically arranged on the side of the pier plate 92 close to the pipe threading assembly line 9, and the support plate 93 is arranged parallel to the pipe threading assembly line 9;

[0062] During the tube threading operation, after the heat exchange fin 6 is placed above the tube threading line 9, the bottom of the heat exchange fin 6 abuts against the support plate 93, and then the U-tube 5 is inserted into the interior of the heat exchange fin 6, so that the end of the U-tube 5 passes through the heat exchange fin 6 and abuts against the pier plate 92, thereby ensuring that the exposed length of the copper tube of the material to be expanded is consistent, avoiding the problem of buckling the U-tube to the lower pier before expanding the tube, simplifying the operation process and improving the operation efficiency.

[0063] Embodiment three:

[0064] The buffer assembly line 2 is arranged in the horizontal direction of the lifting platform 1, the tube threading assembly line 9 is arranged in the vertical direction of the lifting platform 1, the tube expander 3 is arranged between the lifting platform 1 and the tube threading assembly line 9, and the tube expander 3 is located on the side of the lifting platform 1 close to the buffer assembly line 2, so that an operating space is reserved between the lifting platform 1 and the tube threading assembly line 9, which is convenient for employees to transfer materials between the tube threading assembly line 9, the tube expander 3, and the lifting platform 1 when performing tube expansion operations;

[0065] The forklift pallet 7 storing the heat exchange fins 6 is transported to the end of the tube threading line 9 away from the tube expander 3 by a forklift. On the basis of the first embodiment, a lifting device is provided inside the forklift pallet 7 in this embodiment. When taking the heat exchange fins 6 stored on the forklift pallet 7, as the heat exchange fins 6 decrease, the lifting device inside the forklift pallet 7 gradually rises, so that the heat exchange fins 6 stored inside the forklift pallet 7 always maintain a certain height, thereby avoiding the problem of employees bending down to take due to the reduction of the heat exchange fins 6, and further improving the convenience of loading;

[0066] When threading the pipe, three employees stand in a group at the position of the pipe threading line 9 in turn. The first employee takes the heat exchange fin 6 from the forklift pallet 7 and puts it on the pipe threading line 9. Then the three employees take a group of U-tubes 5 from the inside of the copper tube storage box 4, and insert the U-tubes 5 into the inside of the heat exchange fin 6, so that the U-tubes 5 and the heat exchange fin 6 form a heat exchanger semi-finished product 8. The heat exchanger semi-finished product 8 is transported by the pipe threading line 9 and moves to the position of the photoelectric sensor 10;

[0067] After the photoelectric sensor 10 senses the semi-finished heat exchanger 8, it controls the tube threading line 9 to stop. At this time, the staff of the tube expansion process takes the semi-finished heat exchanger 8 and puts it on the tube expander 3 for tube expansion. The staff conducts an appearance inspection on the material that has completed the tube expansion operation and puts the material on the lifting platform 1. When the sensing mechanism on the lifting platform 1 senses that the material has reached a certain height, the material on the lifting platform 1 is transferred to the buffer line 2 for transportation;

[0068] Through the operational connection between the tube threading line 9, the tube expander 3, and the lifting platform 1, the employees in the tube threading process avoid bending down to move materials from the tube threading line 9, thereby reducing the labor intensity of the employees and the probability of heat exchanger reversal defects during the turnover process.

[0069] Embodiment 4:

[0070] The buffer line 2 is arranged in the horizontal direction of the lifting platform 1, the pipe threading line 9 is arranged in the vertical direction of the lifting platform 1, and the tube expander 3 is arranged between the lifting platform 1 and the pipe threading line 9. Figure 5 As shown, in this embodiment, the tube expander 3 is located on the side of the lifting platform 1 away from the buffer assembly line 2, so that the operating space between the lifting platform 1 and the tube threading assembly line 9 is located on the side close to the buffer assembly line 2, so that the operator can easily handle the materials on the buffer assembly line 2 in an emergency, and it is convenient for the staff to transfer the materials between the tube threading assembly line 9, the tube expander 3 and the lifting platform 1 when performing the tube expansion operation;

[0071] The forklift pallet 7 storing the heat exchange fins 6 is transported to the end of the tube threading line 9 away from the tube expander 3 by a forklift. A lifting device is provided inside the forklift pallet 7. When the heat exchange fins 6 stored on the forklift pallet 7 are taken, as the heat exchange fins 6 decrease, the lifting device inside the forklift pallet 7 gradually rises, so that the heat exchange fins 6 stored inside the forklift pallet 7 always maintain a certain height, thereby avoiding the problem that the employee needs to bend down to take due to the reduction of the heat exchange fins 6, and further improving the convenience of loading;

[0072] When threading the pipe, three employees stand in a group at the position of the pipe threading line 9 in turn. The first employee takes the heat exchange fin 6 from the forklift pallet 7 and puts it on the pipe threading line 9. Then the three employees take a group of U-tubes 5 from the inside of the copper tube storage box 4, and insert the U-tubes 5 into the inside of the heat exchange fin 6, so that the U-tubes 5 and the heat exchange fin 6 form a heat exchanger semi-finished product 8. The heat exchanger semi-finished product 8 is transported by the pipe threading line 9 and moves to the position of the photoelectric sensor 10;

[0073] After the photoelectric sensor 10 senses the semi-finished heat exchanger 8, it controls the tube threading line 9 to stop. At this time, the staff of the tube expansion process takes the semi-finished heat exchanger 8 and puts it on the tube expander 3 for tube expansion. The staff conducts an appearance inspection on the material that has completed the tube expansion operation and puts the material on the lifting platform 1. When the sensing mechanism on the lifting platform 1 senses that the material has reached a certain height, the material on the lifting platform 1 is transferred to the buffer line 2 for transportation;

[0074] Through the operational connection between the tube threading line 9, the tube expander 3, and the lifting platform 1, the employees in the tube threading process avoid bending down to move materials from the tube threading line 9, thereby reducing the labor intensity of the employees and the probability of heat exchanger reversal defects during the turnover process.

[0075] Embodiment five:

[0076] The buffer assembly line 2 is arranged in the horizontal direction of the lifting platform 1, the tube threading assembly line 9 is arranged in the vertical direction of the lifting platform 1, the tube expander 3 is arranged between the lifting platform 1 and the tube threading assembly line 9, and the tube expander 3 is located on the side of the lifting platform 1 away from the buffer assembly line 2, so that the operating space between the lifting platform 1 and the tube threading assembly line 9 is located on the side close to the buffer assembly line 2, so that the operator can conveniently carry out emergency treatment of the materials on the buffer assembly line 2, and it is convenient for the staff to carry out the tube expansion operation. The material is transferred between the tube threading assembly line 9, the tube expander 3, and the lifting platform 1;

[0077] The forklift pallet 7 storing the heat exchange fins 6 is transported to the end of the tube threading line 9 away from the tube expander 3 by a forklift. A lifting device is provided inside the forklift pallet 7. When the heat exchange fins 6 stored on the forklift pallet 7 are taken, as the heat exchange fins 6 decrease, the lifting device inside the forklift pallet 7 gradually rises, so that the heat exchange fins 6 stored inside the forklift pallet 7 always maintain a certain height, thereby avoiding the problem that the employee needs to bend down to take due to the reduction of the heat exchange fins 6, and further improving the convenience of loading;

[0078] When threading the pipe, three employees stand in a group at the position of the pipe threading line 9 in turn. The first employee takes the heat exchange fin 6 from the forklift pallet 7 and puts it on the pipe threading line 9. Then the three employees take a group of U-tubes 5 from the inside of the copper tube storage box 4, and insert the U-tubes 5 into the inside of the heat exchange fin 6, so that the U-tubes 5 and the heat exchange fin 6 form a heat exchanger semi-finished product 8. The heat exchanger semi-finished product 8 is transported by the pipe threading line 9 and moves to the position of the photoelectric sensor 10;

[0079] On the basis of the fourth embodiment, in this embodiment, the photoelectric sensor 10 is replaced with a contact switch. When the tube threading line 9 drives the semi-finished heat exchanger 8 to move to the position of the photoelectric sensor 10, the semi-finished heat exchanger 8 contacts the photoelectric sensor 10, triggering the photoelectric sensor 10 to control the tube threading line 9 to stop. At this time, the employee of the tube expansion process takes the semi-finished heat exchanger 8 and places it on the tube expander 3 for tube expansion. The employee performs an appearance inspection on the material that has completed the tube expansion operation and puts the material on the lifting platform 1. When the sensing mechanism on the lifting platform 1 senses that the material has reached a certain height, the material on the lifting platform 1 is transferred to the buffer assembly line 2 for transportation;

[0080] Through the operational connection between the tube threading line 9, the tube expander 3, and the lifting platform 1, the employees in the tube threading process avoid bending down to move materials from the tube threading line 9, thereby reducing the labor intensity of the employees and the probability of heat exchanger reversal defects during the turnover process.

[0081] Embodiment six:

[0082] The mounting support 91 is arranged on the lower side of the pipe threading assembly line 9, and the upper surface of the mounting support 91 is flush with the upper surface of the pipe threading assembly line 9. On the basis of the second embodiment, the inclination angle of the pipe threading assembly line 9 in this embodiment is adjustable. When the inclination angle of the pipe threading assembly line 9 is adjusted, the mounting support 91 is adjusted synchronously with the pipe threading assembly line 9, so that the employees can adjust the pipe threading assembly line 9 to the most comfortable working angle according to their own conditions.

[0083] The pier plate 92 is vertically fixed to the upper surface of the mounting support 91, so that the pier plate 92 is perpendicular to the upper surface of the pipe threading line 9, and the support plate 93 is vertically arranged on the side of the pier plate 92 close to the pipe threading line 9, and the support plate 93 is arranged parallel to the pipe threading line 9;

[0084] During the tube threading operation, after the heat exchange fin 6 is placed above the tube threading line 9, the bottom of the heat exchange fin 6 abuts against the support plate 93, and then the U-tube 5 is inserted into the interior of the heat exchange fin 6, so that the end of the U-tube 5 passes through the heat exchange fin 6 and abuts against the pier plate 92, thereby ensuring that the exposed length of the copper tube of the material to be expanded is consistent, avoiding the problem of buckling the U-tube to the lower pier before expanding the tube, simplifying the operation process and improving the operation efficiency.

[0085] Embodiment seven:

[0086] The mounting support 91 is arranged on the lower side of the pipe threading assembly line 9, and the upper surface of the mounting support 91 is flush with the upper surface of the pipe threading assembly line 9. The inclination angle of the pipe threading assembly line 9 is adjustable. When the inclination angle of the pipe threading assembly line 9 is adjusted, the mounting support 91 is adjusted synchronously with the pipe threading assembly line 9, so that the employees can adjust the pipe threading assembly line 9 to the most comfortable working angle according to their own conditions.

[0087] The pier plate 92 is vertically fixed to the upper surface of the mounting support 91, so that the pier plate 92 is perpendicular to the upper surface of the pipe threading line 9. On the basis of the sixth embodiment, in this embodiment, the pier plate 92 can be adjusted to be arranged on the surface of the mounting support 91. By adjusting the position of the pier plate 92, the distance between the pier plate 92 and the pipe threading line 9 is changed, so that the position of the pier plate 92 can be adjusted according to the heat exchange fins 6 of different specifications, so that the heat exchange fins 6 of different specifications can be placed on the surface of the pipe threading line 9. Positions can be located in a convenient position for operation, thereby improving the convenience of employees threading pipes. The support plate 93 is vertically arranged on one side of the pier plate 92 close to the pipe threading line 9, and the support plate 93 is arranged parallel to the pipe threading line 9;

[0088] During the tube threading operation, after the heat exchange fin 6 is placed above the tube threading line 9, the bottom of the heat exchange fin 6 abuts against the support plate 93, and then the U-tube 5 is inserted into the interior of the heat exchange fin 6, so that the end of the U-tube 5 passes through the heat exchange fin 6 and abuts against the pier plate 92, thereby ensuring that the exposed length of the copper tube of the material to be expanded is consistent, avoiding the problem of buckling the U-tube to the lower pier before expanding the tube, simplifying the operation process and improving the operation efficiency.

[0089] Embodiment eight:

[0090] The mounting support 91 is arranged on the lower side of the pipe threading assembly line 9, and the upper surface of the mounting support 91 is flush with the upper surface of the pipe threading assembly line 9. The inclination angle of the pipe threading assembly line 9 is adjustable. When the inclination angle of the pipe threading assembly line 9 is adjusted, the mounting support 91 is adjusted synchronously with the pipe threading assembly line 9, so that the employees can adjust the pipe threading assembly line 9 to the most comfortable working angle according to their own conditions.

[0091] The pier plate 92 is vertically fixed to the upper surface of the mounting support 91, so that the pier plate 92 is perpendicular to the upper surface of the pipe threading line 9. The pier plate 92 can be adjusted on the surface of the mounting support 91. By adjusting the position of the pier plate 92, the distance between the pier plate 92 and the pipe threading line 9 is changed, so that the position of the pier plate 92 can be adjusted according to the heat exchange fins 6 of different specifications, so that the heat exchange fins 6 of different specifications can be placed on the surface of the pipe threading line 9. The position is located at a position that is convenient for operation, thereby improving the convenience of employees threading pipes;

[0092] The support plate 93 is vertically arranged on one side of the piercing plate 92 close to the tube threading line 9, and the support plate 93 is arranged parallel to the tube threading line 9. On the basis of the seventh embodiment, in this embodiment, the support plate 93 can be adjusted to be arranged on the surface of the piercing plate 92. When in use, according to different tube threading positions of heat exchange fins 6 of different specifications, the height of the support plate 93 is adjusted so that the support plate 93 can be located between the two tube openings of the U tube 5, thereby facilitating the assembly of heat exchange fins 6 and U tubes 5 of different specifications;

[0093] During the tube threading operation, after the heat exchange fin 6 is placed above the tube threading line 9, the bottom of the heat exchange fin 6 abuts against the support plate 93, and then the U-tube 5 is inserted into the interior of the heat exchange fin 6, so that the end of the U-tube 5 passes through the heat exchange fin 6 and abuts against the pier plate 92, thereby ensuring that the exposed length of the copper tube of the material to be expanded is consistent, avoiding the problem of buckling the U-tube to the lower pier before expanding the tube, simplifying the operation process and improving the operation efficiency.

[0094] Embodiment nine:

[0095] Referring to the fifth embodiment, the buffer assembly line 2 is arranged in the horizontal direction of the lifting platform 1, the pipe threading assembly line 9 is arranged in the vertical direction of the lifting platform 1, the tube expander 3 is arranged between the lifting platform 1 and the pipe threading assembly line 9, and the tube expander 3 is located on the side of the lifting platform 1 away from the buffer assembly line 2, so that the operating space between the lifting platform 1 and the pipe threading assembly line 9 is located on the side close to the buffer assembly line 2, so that the operator can conveniently carry out emergency treatment of the materials on the buffer assembly line 2, and it is convenient for the staff to carry out the pipe expansion operation. The material is transferred between the pipe threading assembly line 9, the tube expander 3, and the lifting platform 1;

[0096] The forklift pallet 7 storing the heat exchange fins 6 is transported to the end of the tube threading line 9 away from the tube expander 3 by a forklift. A lifting device is provided inside the forklift pallet 7. When the heat exchange fins 6 stored on the forklift pallet 7 are taken, as the heat exchange fins 6 decrease, the lifting device inside the forklift pallet 7 gradually rises, so that the heat exchange fins 6 stored inside the forklift pallet 7 always maintain a certain height, thereby avoiding the problem that the employee needs to bend down to take due to the reduction of the heat exchange fins 6, and further improving the convenience of loading;

[0097] When threading the pipe, three employees stand in a group at the position of the pipe threading line 9 in turn. The first employee takes the heat exchange fin 6 from the forklift pallet 7 and puts it on the pipe threading line 9. Then the three employees take a group of U-tubes 5 from the inside of the copper tube storage box 4, and insert the U-tubes 5 into the inside of the heat exchange fin 6, so that the U-tubes 5 and the heat exchange fin 6 form a heat exchanger semi-finished product 8. The heat exchanger semi-finished product 8 is transported by the pipe threading line 9 and moves to the position of the photoelectric sensor 10;

[0098] The photoelectric sensor 10 is replaced with a contact switch. When the tube threading line 9 drives the semi-finished heat exchanger 8 to move to the position of the photoelectric sensor 10, the semi-finished heat exchanger 8 contacts the photoelectric sensor 10, triggering the photoelectric sensor 10 to control the tube threading line 9 to stop. At this time, the staff of the tube expansion process takes the semi-finished heat exchanger 8 and puts it on the tube expander 3 for tube expansion. The staff conducts an appearance inspection on the material that has completed the tube expansion operation and puts the material on the lifting platform 1. When the sensing mechanism on the lifting platform 1 senses that the material has reached a certain height, the material on the lifting platform 1 is transferred to the buffer assembly line 2 for transportation;

[0099] Through the operation connection between the tube threading line 9, the tube expander 3, and the lifting platform 1, the bending action of the employees in the tube threading process to move the materials from the tube threading line 9 is avoided, the labor intensity of the employees is reduced, and the probability of heat exchanger reversal defects caused during the turnover process is reduced;

[0100] Referring to the eighth embodiment, the mounting support 91 is arranged on the lower side of the pipe threading assembly line 9, and the upper surface of the mounting support 91 is flush with the upper surface of the pipe threading assembly line 9, and the inclination angle of the pipe threading assembly line 9 is adjustable. When the inclination angle of the pipe threading assembly line 9 is adjusted, the mounting support 91 is adjusted synchronously with the pipe threading assembly line 9, so that the employees can adjust the pipe threading assembly line 9 to the most comfortable working angle according to their own conditions;

[0101] The pier plate 92 is vertically fixed to the upper surface of the mounting support 91, so that the pier plate 92 is perpendicular to the upper surface of the pipe threading line 9. The pier plate 92 can be adjusted on the surface of the mounting support 91. By adjusting the position of the pier plate 92, the distance between the pier plate 92 and the pipe threading line 9 is changed, so that the position of the pier plate 92 can be adjusted according to the heat exchange fins 6 of different specifications, so that the heat exchange fins 6 of different specifications can be placed on the surface of the pipe threading line 9. The position is located at a position that is convenient for operation, thereby improving the convenience of employees threading pipes;

[0102] The support plate 93 is vertically arranged on one side of the piercing plate 92 close to the tube threading line 9, and the support plate 93 is arranged parallel to the tube threading line 9. On the basis of the seventh embodiment, in this embodiment, the support plate 93 can be adjusted to be arranged on the surface of the piercing plate 92. When in use, according to different tube threading positions of heat exchange fins 6 of different specifications, the height of the support plate 93 is adjusted so that the support plate 93 can be located between the two tube openings of the U tube 5, thereby facilitating the assembly of heat exchange fins 6 and U tubes 5 of different specifications;

[0103] During the tube threading operation, after the heat exchange fin 6 is placed above the tube threading line 9, the bottom of the heat exchange fin 6 abuts against the support plate 93, and then the U-tube 5 is inserted into the interior of the heat exchange fin 6, so that the end of the U-tube 5 passes through the heat exchange fin 6 and abuts against the pier plate 92, thereby ensuring that the exposed length of the copper tube of the material to be expanded is consistent, avoiding the problem of buckling the U-tube to the lower pier before expanding the tube, simplifying the operation process and improving the operation efficiency.

[0104] On the basis of Embodiment 5 and Embodiment 8, in this embodiment, a groove for placing the U-tube 5 is provided on the side of the tube threading line 9 close to the employee, and a baffle is provided on one side of the groove. When the heat exchange fin 6 is placed on the surface of the tube threading line 9, the tube threading line 9 transports the heat exchange fin 6 to abut against the baffle. At this time, the hole on the surface of the heat exchange fin 6 for plugging the U-tube 5 is just aligned with the groove. At this time, the employee places the U-tube 5 in the groove, and then pushes the U-tube 5 to insert it into the interior of the heat exchange fin 6. After the plugging is completed, the baffle is controlled to be square, which saves the employee's time for aligning the hole when plugging the U-tube 5, thereby improving work efficiency.

[0105] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0106] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An air conditioning heat exchanger expansion device, characterized in that: include: A lifting platform, the lifting platform is used to store materials, and a buffer line is provided on one side of the lifting platform, the buffer line is used to transport the materials stored on the lifting platform; A tube threading line is arranged on one side of the lifting platform, a tube expander is arranged between the tube threading line and the buffer line, a material sensing device is arranged at one end of the tube threading line, and the tube threading line is used to transport heat exchange fins.

2. The air conditioning heat exchanger expansion device according to claim 1, characterized in that: The surface of the lifting platform is provided with a limiting structure for limiting the position of materials.

3. The air conditioning heat exchanger expansion device according to claim 2, characterized in that: The height of the cache assembly line matches the height of the lifting platform. A sensing mechanism for sensing the height of material placement is installed on the lifting platform. When the sensing mechanism senses that the material has reached a specified height, the material on the lifting platform is transferred to the cache assembly line.

4. The air conditioning heat exchanger expansion device according to claim 3, characterized in that: The pipe threading line is arranged obliquely relative to the horizontal ground. A forklift pallet is arranged at one end of the pipe threading line away from the lifting platform. The forklift pallet is used to store the heat exchange fins. A mounting support is arranged at the bottom of the pipe threading line.

5. The air conditioning heat exchanger expansion device according to claim 4, characterized in that: A copper tube storage box is fixedly installed above the tube threading line, a U tube is placed inside the copper tube storage box, and the copper tube storage box is aligned with a side of the forklift pallet close to the tube threading line.

6. The air conditioning heat exchanger expansion device according to claim 5, characterized in that: The tube expander is arranged on a side of the lifting platform close to the buffer assembly line.

7. The air conditioning heat exchanger expansion device according to claim 6, characterized in that: The material sensing device adopts a photoelectric sensor.

8. The air conditioning heat exchanger expansion device according to claim 7, characterized in that: The photoelectric sensor is arranged at the delivery end of the pipe threading assembly line, and the photoelectric sensor is used to sense the position of the material.

9. The air conditioning heat exchanger expansion device according to claim 4, characterized in that: A flush plate is fixedly installed above the mounting support, a support plate is fixedly provided on the surface of the flush plate, and the support plate is used to support the heat exchange fins. The upper surface of the mounting support is flush with the surface of the pipe threading line.

10. The air conditioning heat exchanger expansion device according to claim 9, characterized in that: The support plate is arranged on a side of the pier plate close to the pipe threading line.

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