Evaporator tube expanding equipment

Abstract

According to the evaporator tube expanding equipment, the trapezoid groove is formed in the working table top of the evaporator tube expanding equipment, and the fin socket is arranged in the trapezoid groove and fixed to the working table top through the fastener, so that the fin sockets of different specifications and sizes can be replaced conveniently to adapt to fins of different specifications and sizes; meanwhile, the extrusion part comprises an extrusion plate and an extrusion block, a plurality of insertion grooves are formed in the end face of the extrusion plate, and the extrusion block is clamped in the insertion grooves, so that the extrusion block can be clamped in different insertion grooves according to the distance between the pipe penetrating holes in the fins of different specifications so as to adapt to the fins of different specifications; the equipment can meet the tube penetrating and expanding requirements of fins of various specifications of an evaporator.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchanger processing, and in particular to an evaporator tube expansion device. Background Art

[0002] The heat exchangers used in air conditioners or refrigerators are composed of copper tubes or aluminum tubes and fins. The copper tubes or aluminum tubes are collectively referred to as pipes. During the processing of the heat exchanger, the pipes and fins need to be fixed together. In the prior art, due to the different shapes and specifications of the fins in heat exchangers of different specifications, the distances of the tube holes on the fins are different, and the fin sockets are fixed on the work surface. When replacing fins of different specifications and sizes, different evaporator expansion devices need to be matched, resulting in a single device being unable to adapt to the situation of fins of various specifications and unable to meet the needs of diverse fin specifications. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the present application provides an evaporator tube expansion device, including a work surface, a fin socket and an extrusion assembly; a trapezoidal groove is arranged on the work surface; the fin socket is arranged in the trapezoidal groove and is fixed to the work surface by fasteners, and a plurality of fin slots extending in a vertical direction are arranged on the fin socket; the extrusion assembly is symmetrically arranged on both sides of the fin socket, the extrusion assembly includes a driving unit and an extrusion part, and the extrusion part is arranged on the protruding end of the driving unit; the extrusion part includes an extrusion plate and an extrusion block, and a plurality of slots are arranged on the end face of the extrusion plate, the slots extend along the width direction of the work surface, and the extrusion block is clamped in the slots.

[0004] In some embodiments of the present application, the extrusion assembly further includes a fixing seat, and the driving unit is disposed on the fixing seat.

[0005] In some embodiments of the present application, the extrusion assembly further includes a guide assembly, which includes guide columns symmetrically arranged on both sides of the driving unit, and the guide columns pass through the fixing seat and one end of which is connected to the extrusion part.

[0006] In some embodiments of the present application, the driving unit is an oil cylinder or a pneumatic cylinder.

[0007] Compared with the prior art, the utility model has the following advantages and beneficial effects: in the evaporator tube expansion device of the present application, a trapezoidal groove is arranged on the work surface, and the fin socket is arranged in the trapezoidal groove and is fixed to the work surface by fasteners, so that the fin sockets of different specifications and sizes can be conveniently replaced to adapt to fins of different specifications and sizes; at the same time, the extrusion part includes an extrusion plate and an extrusion block, and a plurality of slots are arranged on the end face of the extrusion plate, and the extrusion block is clamped in the slots, so that according to the distance between the tube penetration holes on fins of different specifications, the extrusion block can be clamped in different slots to adapt to fins of different specifications, so that the equipment can meet the tube penetration and expansion needs of fins of various specifications.

[0008] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings constituting a part of this document are used to provide a further understanding of this document. The exemplary embodiments and descriptions of this document are used to explain this document and do not constitute an improper limitation on this document. In the accompanying drawings:

[0010] Figure 1 is a schematic structural diagram of a fin provided by an exemplary embodiment of the present application;

[0011] Figure 2 is a front view of an evaporator tube expansion device provided by an exemplary embodiment of the present application;

[0012] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0013] Figure 4 yes Figure 2 The enlarged view of point B in the middle;

[0014] Figure 5 is a top view of an evaporator tube expansion device provided by an exemplary embodiment of the present application;

[0015] Figure 6 yes Figure 5 Enlarged view of point C in the middle.

[0016] In the figure:

[0017] 10. Fin socket; 101. Fin slot; 20. Extrusion assembly; 201. Drive unit; 202. Fixed seat; 203. Extrusion part; 2031. Extrusion plate; 2032. Extrusion block; 205. Guide assembly; 30. Work table; 301. Trapezoidal groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0019] In the related art, the heat exchangers used in air conditioners or refrigerators are composed of copper tubes or aluminum tubes and fins. The copper tubes or aluminum tubes are collectively referred to as pipes. During the processing of the heat exchanger, the pipes and fins need to be fixed together. In the prior art, due to the different shapes and specifications of the fins in heat exchangers of different specifications, the distances of the tube holes on the fins are different, and the fin sockets are fixed on the work surface. When replacing fins of different specifications and sizes, different evaporator expansion devices need to be matched, which cannot meet the needs of diverse fin specifications.

[0020] Based on this, an exemplary embodiment of the present application provides an evaporator tube expansion device, in which a trapezoidal groove is provided on the work surface of the evaporator tube expansion device, and the fin socket is provided in the trapezoidal groove and is fixed to the work surface by fasteners, so that the fin sockets of different specifications and sizes can be conveniently replaced to adapt to fins of different specifications and sizes; at the same time, the extrusion part includes an extrusion plate and an extrusion block, and a plurality of slots are provided on the end surface of the extrusion plate, and the extrusion block is clamped in the slots, so that according to the distance between the tube holes on fins of different specifications, the extrusion block can be clamped in different slots to adapt to fins of different specifications, so that the device can meet the tube expansion needs of fins of various specifications.

[0021] An exemplary embodiment of the present application provides an evaporator tube expansion device, which can press the tube from the side opening of the fin into the hole on the fin. Figure 1 As shown, irregularly shaped through-tube holes are provided on the fins, including rectangular holes near the edge of the fins and circular holes connected to the rectangular holes, and the size of the rectangular holes is smaller than that of the circular holes. Since the pipeline is usually a circular tube, before pressing the pipeline into the fins, the pipeline needs to be flattened so that the cross-sectional shape of the pipeline is elliptical. Afterwards, the pipeline is bent into a preset shape, and after fixing the fins, one side of the long radius of the pipeline is stuck in the rectangular hole, and then the evaporator tube expansion device is used to press the pipeline into the circular hole. At the same time, the pipeline is deformed by pressure, and the cross-sectional shape of the pipeline changes from elliptical to circular, so that the pipeline is stuck in the circular hole and will not fall out of the circular hole.

[0022] like Figures 2 to 4As shown, the evaporator tube expansion device includes a work surface 30, a fin socket 10 and an extrusion assembly 20; a trapezoidal groove 301 is provided on the work surface 30; the fin socket 10 is arranged in the trapezoidal groove 301 and is fixed to the work surface 30 by fasteners, so that the fin socket 10 can be removed by removing the fasteners, so that the fin socket 10 of different specifications and sizes can be replaced conveniently to adapt to fins of different specifications and sizes; the bottom size of the trapezoidal groove 301 can be adapted to the width size of the fin to position the fin. The fin socket 10 is provided with a plurality of fin slots 101 extending in the vertical direction, and the fins can be inserted into the fin slots 101 and positioned by the bottom of the trapezoidal groove 301; the extrusion assembly 20 is symmetrically arranged on both sides of the fin socket 10, and the extrusion assembly 20 includes a driving unit 201 and an extrusion part 203, and the extrusion part 203 is arranged on the protruding end of the driving unit 201; the extrusion part 203 includes an extrusion plate 2031 and an extrusion block 2032, and a plurality of slots are arranged on the end face of the extrusion plate 2031, and the slots extend along the width direction of the work table 30, and the extrusion block 2032 is clamped in the slots, so that according to the distance between the tube holes on the fins of different specifications, the extrusion block 2032 can be clamped in different slots to adapt to fins of different specifications, so that the equipment can meet the expansion requirements of fins of various specifications.

[0023] The extrusion assembly 20 includes a driving unit 201, and an extrusion part 203 is provided on the extended end of the driving unit 201. Preferably, the driving unit 201 is an oil cylinder or an air cylinder, and the driving unit 201 can drive the extrusion part 203 to move toward the fin socket 10. In the process of pressing the pipeline into the fin, the extrusion block 2032 matches the direction of the pipeline. During the extrusion, the extrusion block 2032 contacts the pipeline and squeezes the pipeline so that the pipeline enters the circular hole on the fin, and further squeezes and expands the pipeline so that the cross-section of the pipeline changes from an elliptical shape to a circular shape. In the extrusion process, the concave space between each extrusion block 2032 can accommodate the fin to prevent the fin from being squeezed and deformed.

[0024] In order to fix the driving unit 201, the extrusion assembly 20 further includes a fixing seat 202, and the driving unit 201 is arranged on the fixing seat 202. The protruding end of the driving unit 201 extends out of the fixing seat 202 and is connected to the extrusion part 203. In order to guide the movement of the extrusion part 203, the extrusion assembly 20 further includes a guide assembly 205, and the guide assembly 205 includes guide columns symmetrically arranged on both sides of the driving unit 201, the guide columns pass through the fixing seat 202 and one end is connected to the extrusion part 203, and the other end extends in the opposite direction of the extrusion part 203. When the driving unit 201 drives the extrusion part 203 to move, the guide assembly 205 can guide the movement of the extrusion part 203 to prevent the movement of the extrusion part 203 from being offset.

[0025] The working process of the evaporator tube expansion device of the present application is as follows: first, the fin is manually inserted into the fin slot 101 on the fin socket 10; second, the bent pipeline is manually clamped in the rectangular hole of the fin; thereafter, the evaporator tube expansion device is started, and the two driving units 201 on both sides of the fin socket 10 simultaneously drive the extrusion part 203 to move toward the fin socket 10, the extrusion block 2032 contacts the pipeline, the driving unit 201 drives the extrusion part 203 to move further toward the fin socket 10, the extrusion block 2032 presses the pipeline into the circular hole on the fin, the driving unit 201 drives the extrusion part 203 to move further toward the fin socket 10, and the extrusion block 2032 squeezes and expands the pipeline, so that the cross-sectional shape of the pipeline changes from elliptical to circular.

[0026] In this application, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0027] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0028] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the intention of the present application also includes these modifications and variations.

Claims

1. An evaporator tube expansion device, characterized in that: It includes a work surface, a fin socket and an extrusion assembly; a trapezoidal groove is arranged on the work surface; the fin socket is arranged in the trapezoidal groove and is fixed to the work surface by fasteners, and a plurality of fin slots extending in the vertical direction are arranged on the fin socket; the extrusion assembly is symmetrically arranged on both sides of the fin socket, the extrusion assembly includes a driving unit and an extrusion part, and the extrusion part is arranged on the protruding end of the driving unit; the extrusion part includes an extrusion plate and an extrusion block, and a plurality of slots are arranged on the end surface of the extrusion plate, and the slots extend along the width direction of the work surface, and the extrusion block is clamped in the slots.

2. The evaporator tube expansion device according to claim 1, characterized in that: The extrusion assembly also includes a fixing seat, and the driving unit is arranged on the fixing seat.

3. The evaporator tube expansion device according to claim 2, characterized in that: The extrusion assembly further includes a guide assembly, which includes guide columns symmetrically arranged on both sides of the driving unit. The guide columns pass through the fixing seat and one end of the guide columns is connected to the extrusion part.

4. The evaporator tube expansion device according to claim 1, characterized in that: The driving unit is an oil cylinder or a gas cylinder.

Images