Pipe expanding device and heat exchange part production equipment

Abstract

The invention relates to a pipe expanding device and heat exchange part production equipment, and relates to the technical field of pipe expanding. The pipe expanding device comprises a plurality of expanding rod sets and a plurality of limiting assemblies. The expanding rod sets are arranged at intervals in the first direction. The limiting assemblies can be controlled to be arranged in a stacked mode in the second direction. Wherein each expansion rod set comprises a plurality of expansion rods which are linearly distributed at equal intervals in the third direction, each limiting assembly correspondingly fixes the same ends of all the expansion rods of the corresponding expansion rod set, all the expansion rods of each expansion rod set abut against one row of pipelines in the second direction, and all the expansion rods of the corresponding expansion rod set abut against the corresponding row of pipelines in the third direction. And the pipe expanding device can be controlled to move in the second direction, so that the expanding rods expand the inner diameters of the pipelines. The pipe expanding efficiency of the multiple rows of heat exchange pipes can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of tube expansion, and in particular to a tube expansion device and heat exchange component production equipment. Background Art

[0002] In the air conditioning system, both the evaporator and the condenser have heat exchange tube components. In order to improve the heat exchange efficiency, it is often necessary to adopt a multi-row heat exchange tube design. During the production process, the heat exchange tube needs to be expanded to facilitate the connection between the heat exchange tubes. However, in the related art, a tube expander is still used to expand a single heat exchange tube or a single row of heat exchange tubes, which has low production efficiency and is difficult to meet market demand. Summary of the invention

[0003] Based on this, it is necessary to provide a tube expansion device and heat exchange component production equipment to address the problem of low tube expansion efficiency.

[0004] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0005] In a first aspect, an embodiment of the present application provides a tube expansion device for expanding the inner diameter of multiple rows of pipelines, the tube expansion device comprising:

[0006] A plurality of expansion rod groups, each of the expansion rod groups is arranged at intervals along a first direction;

[0007] A plurality of position limiting components, each of which can be controlled to be stacked along the second direction;

[0008] Wherein, each of the expansion rod groups includes a plurality of expansion rods that are equidistantly distributed in a straight line along the third direction, each of the limit assemblies corresponds to fixing the same end of all the expansion rods of one of the expansion rod groups, all the expansion rods of each of the expansion rod groups are pressed against a row of the pipelines along the second direction, and the expansion device can be controlled to move along the second direction, so that each of the expansion rods expands the inner diameter of each of the pipelines;

[0009] Any two of the first direction, the second direction, and the third direction are perpendicular to each other.

[0010] Through the above design, the inner diameters of multiple rows of pipelines can be expanded simultaneously, thereby improving production efficiency and being suitable for industrial production.

[0011] In one of the embodiments of the first aspect, in the second direction, the expansion rods fixed to one of the upper limiting assemblies are sequentially slidably passed through other limiting assemblies located below.

[0012] Through the above design, the upper row of expansion rods can be guided while making the overall structure more compact and reducing the overall volume of the device.

[0013] In one embodiment of the first aspect, the expansion rod groups are provided with four and are respectively a first expansion rod group, a second expansion rod group, a third expansion rod group, and a fourth expansion rod group, and the limiting components are correspondingly provided with four and are respectively a first limiting component, a second limiting component, a third limiting component, and a fourth limiting component;

[0014] One end of each expansion rod in the first expansion rod group is fixed to the first limiting assembly, and the other end passes through the second limiting assembly, the third limiting assembly and the fourth limiting assembly in sequence; one end of each expansion rod in the second expansion rod group is fixed to the second limiting assembly, and the other end passes through the third limiting assembly and the fourth limiting assembly in sequence; one end of each expansion rod in the third expansion rod group is fixed to the third limiting assembly, and the other end passes through the fourth limiting assembly; one end of each expansion rod in the fourth expansion rod group is fixed to the fourth limiting assembly.

[0015] Through the above design, each expansion rod group can be pressed against the corresponding four rows of heat exchange tube ports at the same time to achieve synchronous tube expansion of the four rows of heat exchange tubes, which is convenient for industrial automatic production.

[0016] In one of the embodiments of the first aspect, the first limiting assembly includes a first mounting member, a first fixing member, a first screw rod and a first driving member, the first fixing member is arranged on the side of the first mounting member facing away from the second limiting assembly, one end of each expansion rod of the first expansion rod group is inserted into the first fixing member, the first driving member is transmission-connected with the first screw rod, the first screw rod is rotatably passed through the first mounting member, and the other end is threadedly engaged with the third limiting assembly.

[0017] Through the above design, the distance between the first limiting assembly and the third limiting assembly is adjusted, thereby achieving height adjustment of the first expansion rod group and the third expansion rod group, corresponding to the height difference of the corresponding heat exchange tubes.

[0018] In one embodiment of the first aspect, the first limiting assembly further includes a limiting member and a telescopic member, the limiting member is slidably installed between the first fixing member and the first mounting member and is provided with a plurality of slots, and the telescopic member is connected to the limiting member to drive the limiting member to move along the third direction;

[0019] A clamping portion is provided at one end of each expansion rod of the first expansion rod group connected to the first fixing member, and the clamping portion is clamped and matched with the clamping slot.

[0020] Through the above design, each expansion rod is further fixed, thereby ensuring the stability of the tube expansion operation.

[0021] In one embodiment of the first aspect, the second limit assembly includes a second mounting member, a second fixing member and a second screw rod, the second fixing member is arranged on a side of the second mounting member close to the first limit assembly, one end of each expansion rod of the second expansion rod group is inserted into the second fixing member, and one end of the second screw rod is threadedly engaged with the second mounting member;

[0022] The third limiting assembly includes a second driving member, and the second driving member is transmission-connected to an end of the second screw rod away from the second mounting member.

[0023] Through the above design, the distance between the second mounting plate and the third limiting assembly is adjusted, thereby adjusting the height of the second expansion rod group.

[0024] In one of the embodiments of the first aspect, the third limiting assembly further includes a third mounting member and a third fixing member, the third fixing member is arranged on the side of the third mounting member facing away from the second limiting assembly, and one end of each expansion rod of the third expansion rod group is inserted into the third fixing member.

[0025] Through the above design, the third expansion rod group is fixed.

[0026] In one embodiment of the first aspect, the fourth limiting assembly includes a fourth mounting member, a fourth fixing member and a third screw rod, the fourth mounting member is arranged on a side of the third limiting assembly facing away from the second limiting assembly, the fourth fixing member is arranged on a side of the fourth mounting member close to the third limiting assembly, one end of each expansion rod of the fourth expansion rod group is inserted into the fourth fixing member, and one end of the third screw rod is threadedly engaged with the fourth mounting member;

[0027] The third limiting assembly includes a third driving member, and the third driving member is transmission-connected to an end of the third screw rod away from the fourth mounting member.

[0028] Through the above design, the position adjustment of the fourth limiting assembly relative to the third limiting assembly is achieved, and the height of the fourth expansion rod group is adjusted.

[0029] In one of the embodiments of the first aspect, the tube expansion device also includes a guide assembly, which includes a plurality of guide plates stacked along the second direction and a plurality of guide rods parallel to the second direction, each of the guide plates is provided with a guide hole for each expansion rod to pass through, at least one guide rod is connected between two adjacent guide plates, and the guide plate located at the top in the second direction is connected to a limit assembly through at least one guide rod.

[0030] Through the above design, the expansion rod is limited to ensure the pressing strength during the operation.

[0031] In a second aspect, an embodiment of the present application further provides a heat exchange component production device, comprising the tube expansion device described in any of the above embodiments.

[0032] Through the above design, the expansion operation of multiple rows of heat exchange tubes in the heat exchange component is realized, the production efficiency is improved, and automated production is realized.

[0033] Compared with the related art, the beneficial effect of the present application is as follows: the present application provides a tube expansion device and a heat exchange component production equipment, which can improve the tube expansion efficiency of the heat exchange tube. The tube expansion device includes a plurality of expansion rod groups and a plurality of limit assemblies. Among them, each expansion rod group is provided with a plurality of expansion rods, each limit assembly is fixed with an expansion rod group, and the expansion rod groups are arranged with a height difference. In this way, during the tube expansion operation, the operating ends of each expansion rod group are arranged in a staggered manner like the multiple rows of heat exchange tubes, so that when the tube expansion device is pressed down as a whole, each expansion rod group simultaneously performs the diameter expansion operation of multiple rows of heat exchange tubes, thereby improving the tube expansion efficiency of multiple rows of heat exchange tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a front view structural schematic diagram of a tube expansion device in some embodiments of the present application;

[0036] Figure 2 This is a schematic diagram of the side view of the tube expansion device in some embodiments of the present application;

[0037] Figure 3 This is a schematic diagram of the axonometric structure of a tube expansion device in some embodiments of the present application;

[0038] Figure 4 This is a schematic diagram of the structure of the first limiting component in some embodiments of the present application;

[0039] Figure 5 for Figure 4 The enlarged structural diagram of the middle E part;

[0040] Figure 6 This is a schematic diagram of the structure of the position limiting member in some embodiments of the present application;

[0041] Figure 7 This is a schematic diagram of the structure of the expansion rod in some embodiments of the present application;

[0042] Figure 8This is a schematic diagram of the structure of the second limiting component in some embodiments of the present application;

[0043] Fig. 9 This is a schematic diagram of the structure of the third limiting component in some embodiments of the present application;

[0044] Fig.10 This is a schematic diagram of the structure of the fourth limiting component in some embodiments of the present application.

[0045] Description of reference numerals:

[0046] 100, expansion device; 110, expansion rod group; 110a, first expansion rod group; 110b, first expansion rod group; 110c, first expansion rod group; 110d, first expansion rod group; 111, expansion rod; 1111, clamping part; 120, limit assembly; 120a, first limit assembly; 121a, first mounting member; 122a, first fixing member; 123a, first screw rod; 124a, first driving member; 125a, limit member; 126a, telescopic member; 127a, clamping groove; 120b, second position-limiting assembly; 121b, second mounting member; 122b, second fixing member; 123b, second screw rod; 120c, third position-limiting assembly; 121c, third mounting member; 122c, third fixing member; 123c, second driving member; 124c, third driving member; 120d, fourth position-limiting assembly; 121d, fourth mounting member; 122d, fourth fixing member; 123d, third screw rod; 130, guide assembly; 131, guide plate; 132, guide rod;

[0047] x, first direction; z, second direction; y, third direction. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0049] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0050] In addition, if the term "and / or" appears, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0054] See also Figure 1 As shown, an embodiment of the present application provides a tube expansion device 100 that can simultaneously expand the inner diameters of multiple rows of pipelines to improve tube expansion efficiency.

[0055] Continue reading Figure 2 and Figure 3 As shown, specifically, the tube expansion device 100 includes a plurality of expansion rod groups 110 and a plurality of limit assemblies 120. Among them, each expansion rod group 110 is arranged at intervals along the first direction x, and each limit assemblies 120 can be controlled to be stacked along the second direction z. And each expansion rod group 110 includes a plurality of expansion rods 111 equidistantly distributed in a straight line along the third direction y, so as to expand the inner diameter of the pipeline through the expansion rods 111. Each limit assembly 120 corresponds to fixing the same end of all the expansion rods 111 of an expansion rod group 110, so that each expansion rod group 110 is fixed by each limit assembly 120, so as to facilitate the simultaneous tube expansion operation of all the expansion rods 111.

[0056] It should be noted that any two of the first direction x, the second direction z and the third direction y are perpendicular to each other. In this application, the first direction x refers to the width direction of the limit assembly 120, the third direction y refers to the length direction of the limit assembly 120, and the second direction z refers to the height direction of the limit assembly 120, that is, the gravity direction. The upper and lower directions in this application are all based on the second direction z as the reference coordinate.

[0057] Exemplarily, during the tube expansion operation, each expansion rod 111 is vertically arranged along the second direction z, and one end on the same side is fixed by the corresponding limit assembly 120, while the other end points to a corresponding pipeline port. Each pipeline is fixed below the tube expansion device 100, and each expansion rod 111 is pressed downward against the port of the corresponding pipeline. Under the action of the external driving member, the tube expansion device 100 moves downward as a whole, so that the expansion rod 111 is inserted into the pipeline to complete the corresponding tube expansion operation. In this way, the tube expansion device 100 provided in the present application can simultaneously expand the inner diameter of multiple rows of pipelines, improve production efficiency, and is suitable for industrial production.

[0058] In some embodiments, in the second direction z, the expansion rods 111 fixed to one of the upper limiting assemblies 120 sequentially slide through other limiting assemblies 120 located below.

[0059] Specifically, each limit assembly 120 has a row of holes for fixing corresponding expansion rods 111, and the expansion rods 111 located at the top need to pass through the limit assembly 120 at the bottom, so that all expansion rods 111 maintain the same working direction. To this end, the limit assembly 120 located at the bottom will open more corresponding expansion rod 111 holes to facilitate the insertion of the upper row of expansion rods 111, which can guide the upper row of expansion rods 111 while making the overall structure more compact and reducing the overall volume of the device.

[0060] Exemplarily, the topmost limiting assembly 120 only needs to have one row of through holes for installing the first row of expansion rods 111, while the lower limiting assemblies 120 will have two, three, four, five, etc. rows in sequence, depending on the number of expansion rod groups 110.

[0061] It should be noted that as commercial buildings such as large shopping malls and office buildings require more efficient and energy-saving refrigeration systems, the demand for high-efficiency evaporators and condensers with four rows of heat exchange tubes is increasing. To this end, the tube expansion device 100 provided in this application is mainly used for the production of heat exchange components of evaporators or condensers to meet the automated production of four-row heat exchange tube components.

[0062] In view of the above description, in this specific embodiment, there are four expansion rod groups 110, namely the first expansion rod group 110a, the second expansion rod group 110b, the third expansion rod group 110c, and the fourth expansion rod group 110d. Correspondingly, there are four limiter components 120, namely the first limiter component 120a, the second limiter component 120b, the third limiter component 120c, and the fourth limiter component 120d.

[0063] In this way, each expansion rod 111 in the first expansion rod group 110a is fixed at one end to the first limit assembly 120a, and the other end is sequentially passed through the second limit assembly 120b, the third limit assembly 120c and the fourth limit assembly 120d. Each expansion rod 111 in the second expansion rod group 110b is fixed at one end to the second limit assembly 120b, and the other end is sequentially passed through the third limit assembly 120c and the fourth limit assembly 120d. Each expansion rod 111 in the third expansion rod group 110c is fixed at one end to the third limit assembly 120c, and the other end is passed through the fourth limit assembly 120d. One end of each expansion rod 111 in the fourth expansion rod group 110d is fixed to the fourth limit assembly 120d.

[0064] Exemplarily, the four rows of heat exchange tubes in the heat exchange component are arranged in a staggered manner, and the size of each expansion rod 111 remains the same, so as to facilitate the uniform production and replacement of the expansion rod 111. To this end, each expansion rod group 110 is formed into a staggered structure with different heights through a corresponding limit assembly 120.

[0065] Specifically, the first stopper assembly 120a is located at the top, and the second stopper assembly 120b, the third stopper assembly 120c, and the fourth stopper assembly 120d are sequentially arranged below it. Under the action of each stopper assembly 120, the first expansion rod group 110a, the second expansion rod group 110b, the third expansion rod group 110c, and the fourth expansion rod group 110d maintain a stepped structure with different heights, and the height difference between each expansion rod group 110 is the same as the height difference of each row of heat exchange tubes, so that during the tube expansion process, each expansion rod group 110 can be simultaneously pressed against the corresponding heat exchange tube port to achieve synchronous tube expansion of four rows of heat exchange tubes, which is convenient for industrial automatic production.

[0066] Continue reading Figure 4 As shown, further, the first limiting component 120a includes a first mounting member 121a, a first fixing member 122a, a first screw rod 123a and a first driving member 124a. The first fixing member 122a is arranged on the side of the first mounting member 121a facing away from the second limiting component 120b. One end of each expansion rod 111 of the first expansion rod group 110a is inserted into the first fixing member 122a. The first driving member 124a and the first screw rod 123a are transmission-connected. The first screw rod 123a is rotatably passed through the first mounting member 121a, and the other end is threadedly engaged with the third limiting component 120c.

[0067] Specifically, the first mounting member 121a and the first fixing member 122a are both planar plates, wherein the first fixing member 122a is provided with a row of through holes, and a through groove is correspondingly provided in the middle of the first mounting member 121a, and each expansion rod 111 of the first expansion rod group 110a is respectively inserted into the through holes of the first fixing member 122a, and passes through the through groove of the first mounting member 121a to point to the second limiting component 120b.

[0068] There are two first screw rods 123a, which are arranged at two ends of the first mounting member 121a. At the same time, one end of the first screw rod 123a is rotatably connected to the first mounting member 121a through a bushing or a bearing, and the other end is threadedly matched with the third limit assembly 120c, so that the spacing between the first limit assembly 120a and the third limit assembly 120c can be adjusted by screwing the first screw rod 123a and the third limit assembly 120c, thereby realizing the height adjustment of the first expansion rod group 110a and the third expansion rod group 110c, corresponding to the height difference of the corresponding heat exchange tube.

[0069] The first driving member 124a may be a rotating motor, which is coupled to one end of the first screw rod 123a connected to the first mounting member 121a to drive the first screw rod 123a to rotate, thereby driving the first mounting frame to move up and down. For example, the end of the first screw rod 123a may be provided with a transmission member such as a gear, a pulley, a sprocket, etc., and the first driving member 124a may form a gear transmission, a belt transmission, a chain transmission, a line transmission, etc. with the first screw rod 123a accordingly, and the specific selection may be based on actual needs and is not specifically limited here.

[0070] Continue reading Figure 5 and Figure 6 As shown, further, the first limiting component 120a also includes a limiting member 125a and a telescopic member 126a. The limiting member 125a is slidably installed between the first fixing member 122a and the first mounting member 121a, and is provided with a plurality of slots 127a. The telescopic member 126a is connected to the limiting member 125a to drive the limiting member 125a to move along the third direction y.

[0071] Continue reading Figure 7 As shown, correspondingly, one end of each expansion rod 111 of the first expansion rod group 110a connected to the first fixing member 122a is provided with a clamping portion 1111, and the clamping portion 1111 is clamped and matched with the clamping groove 127a.

[0072] Specifically, the telescopic member 126a can be a pneumatic cylinder, and its driving end abuts against one end of the limiting member 125a. The limiting member 125a can also be a flat plate, and is slidably arranged between the first fixing member 122a and the first mounting member 121a. The limiting member 125a is provided with a slot 127a corresponding to the through hole on the first fixing member 122a, and the inner diameter of the slot 127a is the same as the inner diameter of the through hole. During the installation process of the expansion rod 111, the slot 127a of the limiting member 125a is coaxially arranged with the through hole of the first fixing member 122a, so that each expansion rod 111 can pass through the first fixing member 122a and the limiting member 125a in sequence. The expansion rod 111 is correspondingly provided with a clamping portion 1111, and the clamping portion 1111 is arranged in a notch, so the outer diameter there is smaller than the overall outer diameter of the expansion rod 111. Therefore, when the clamping portion 1111 and the limiting member 125a are in the same horizontal plane, the limiting member 125a can move relative to the expansion rod 111, so that under the drive of the telescopic member 126a, the limiting member 125a moves along the third direction y, so that the side of the clamping groove 127a is embedded in the clamping portion 1111 of the expansion rod 111, thereby achieving further fixation of each expansion rod 111 and ensuring the stability of the tube expansion operation.

[0073] Continue reading Figure 8As shown, further, the second limiting component 120b includes a second mounting member 121b, a second fixing member 122b and a second screw rod 123b. The second fixing member 122b is arranged on a side of the second mounting member 121b close to the first limiting component 120a. One end of each expansion rod 111 of the second expansion rod group 110b is inserted into the second fixing member 122b, and one end of the second screw rod 123b is threadedly engaged with the second mounting member 121b.

[0074] Correspondingly, the third limiting assembly 120c includes a second driving member 123c, and the second driving member 123c is transmission-connected to an end of the second screw rod 123b away from the second mounting member 121b.

[0075] Specifically, the second mounting member 121b and the second fixing member 122b can also be flat plates, and the second fixing member 122b needs to have two rows of through holes to facilitate the insertion of the first expansion rod group 110a and the installation of the second expansion rod group 110b. Similar to the first limiting assembly 120a, a limiting member 125a can also be set between the second fixing member 122b and the second mounting member 121b, and the second expansion rod group 110b can be fixed by the same principle through the drive of the cylinder, which will not be repeated here. At the same time, two second screw rods 123b are provided, and the two second screw rods 123b are correspondingly arranged at both ends of the second mounting member 121b. The second driving member 123c can also be a rotating motor, and is connected to the second screw rod 123b through a transmission mechanism such as a belt or chain, so as to drive the second screw rod 123b to rotate, adjust the distance between the second mounting plate and the third limiting assembly 120c, and then adjust the height of the second expansion rod group 110b.

[0076] Continue reading Fig. 9 As shown, further, the third limiting component 120c also includes a third mounting member 121c and a third fixing member 122c. The third fixing member 122c is arranged on the side of the third mounting member 121c facing away from the second limiting component 120b, and each expansion rod 111 of the third expansion rod group 110c is inserted into the third fixing member 122c at one end.

[0077] Specifically, the third mounting member 121c is a box structure to meet the layout of the second driving member 123c and related transmission members, and to facilitate the assembly of the first screw rod 123a, the second screw rod 123b and the third mounting member 121c. The third fixing member 122c is arranged on the bottom side of the third mounting member 121c, and three rows of through holes are correspondingly provided to facilitate the penetration of the first expansion rod group 110a and the second expansion rod group 110b and the installation of the third expansion rod group 110c. Similarly, the third limiting assembly 120c can also be provided with a limiting member 125a that is the same as the first limiting assembly 120a to fix the third expansion rod group 110c, which will not be repeated here.

[0078] Continue reading Fig.10As shown, further, the fourth limiting component 120d includes a fourth mounting member 121d, a fourth fixing member 122d and a third screw rod 123d, the fourth mounting member 121d is arranged on the side of the third limiting component 120c facing away from the second limiting component 120b, the fourth fixing member 122d is arranged on the side of the fourth mounting member 121d close to the third limiting component 120c, one end of each expansion rod 111 of the fourth expansion rod group 110d is inserted into the fourth fixing member 122d, and one end of the third screw rod 123d is threadedly matched with the fourth mounting member 121d.

[0079] Correspondingly, the third limiting assembly 120c includes a third driving member 124c, and the third driving member 124c is transmission-connected to an end of the third screw rod 123d away from the fourth mounting member 121d.

[0080] Specifically, the fourth position-limiting assembly 120d is arranged below the third position-limiting assembly 120c, and its structure is basically the same as that of the second position-limiting assembly 120b, and the third screw rod 123d is driven to rotate by the third driving member 124c, so as to adjust the position of the fourth position-limiting assembly 120d relative to the third position-limiting assembly 120c and adjust the height of the fourth expansion rod group 110d. The difference between the fourth position-limiting assembly 120d and the second position-limiting assembly 120b is that the fourth fixing member 122d needs to have four rows of through holes to facilitate the installation of the first expansion rod group 110a, the second expansion rod group 110b and the third expansion rod group 110c and the installation of the fourth expansion rod group 110d. The rest of the principles are the same as those of the second position-limiting assembly 120b, and will not be described in detail here.

[0081] In summary, in the tube expansion device 100 provided in this embodiment, the third limit assembly 120c and the third expansion rod group 110c maintain a fixed height. At the same time, through the cooperation of the first driving member 124a and the first screw rod 123a, the height adjustment of the first limit assembly 120a and the third limit assembly 120c is realized, thereby adjusting the height of the first expansion rod group 110a; through the cooperation of the second driving member 123c and the second screw rod 123b, and the cooperation of the third driving member 124c and the third screw rod 123d, the height adjustment of the second expansion rod group 110b and the fourth expansion rod group 110d is realized, so as to meet the staggered setting of each expansion rod group 110, so as to align with the corresponding four rows of heat exchange tubes and improve the tube expansion efficiency.

[0082] In some embodiments, the tube expansion device 100 also includes a guide assembly 130, which includes a plurality of guide plates 131 stacked along the second direction z and a plurality of guide rods 132 parallel to the second direction z, each guide plate 131 is provided with a guide hole for each expansion rod 111 to pass through, at least one guide rod 132 is connected between two adjacent guide plates 131, and a guide plate 131 located at the top in the second direction z is connected to a limit assembly 120 through at least one guide rod 132.

[0083] Specifically, the topmost guide plate 131 is mounted below the third mounting member 121c via guide rods 132. To ensure the stability of each guide plate 131, the same number of guide rods 132 should be disposed on both sides of each guide plate 131 to ensure the stability of the guide plate 131.

[0084] It is understandable that due to the long length of the expansion rod 111, the expansion rod 111 lacks pressing strength in the absence of limitation. To this end, multiple guide plates 131 are stacked to allow each expansion rod 111 to pass through the guide holes of each guide plate 131 to limit the expansion rod 111 and ensure the pressing strength during operation. The spacing between two adjacent guide plates 131 can be adjusted by locking the bolts and the guide rod 132 to meet the height adjustment of the expansion rod 111 during the production process.

[0085] An embodiment of the present application further provides a heat exchange component production device, comprising the tube expansion device 100 in any of the above embodiments.

[0086] It is understandable that the heat exchange component can be a heat exchange tube component of an evaporator or a condenser, and the present application can accordingly propose an evaporator production device or a condenser production device to realize the automated production of the evaporator or the condenser. The heat exchange component production device can also include a fixed bracket and a driving mechanism, so that the tube expansion device 100 is installed on the fixed bracket, and after adjusting the height of each expansion rod group 110, the tube expansion device 100 is driven downward as a whole by the driving mechanism to realize the tube expansion operation of the heat exchange component.

[0087] This embodiment has the tube expansion device 100 in any of the above embodiments, and therefore has all the beneficial effects of the tube expansion device 100 in any of the above embodiments, which will not be described in detail here.

[0088] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A tube expansion device for expanding the inner diameter of multiple rows of pipes, characterized in that: The tube expansion device comprises: A plurality of expansion rod groups, each of the expansion rod groups is arranged at intervals along a first direction; A plurality of limit assemblies, each of which can be controlled to be stacked along the second direction; Wherein, each of the expansion rod groups includes a plurality of expansion rods that are equidistantly distributed in a straight line along the third direction, each of the limit assemblies corresponds to fixing the same end of all the expansion rods of one of the expansion rod groups, all the expansion rods of each of the expansion rod groups are pressed against a row of the pipelines along the second direction, and the expansion device can be controlled to move along the second direction, so that each of the expansion rods expands the inner diameter of each of the pipelines; Any two of the first direction, the second direction, and the third direction are perpendicular to each other.

2. The tube expansion device according to claim 1, characterized in that: In the second direction, the expansion rods fixed to one of the upper limiting assemblies are sequentially slidably passed through other limiting assemblies located below.

3. The tube expansion device according to claim 1, characterized in that: The expansion rod groups are provided with four and are respectively the first expansion rod group, the second expansion rod group, the third expansion rod group and the fourth expansion rod group, and the limit assemblies are provided with four and are respectively the first limit assemblies, the second limit assemblies, the third limit assemblies and the fourth limit assemblies; One end of each expansion rod in the first expansion rod group is fixed to the first limiting assembly, and the other end passes through the second limiting assembly, the third limiting assembly and the fourth limiting assembly in sequence; one end of each expansion rod in the second expansion rod group is fixed to the second limiting assembly, and the other end passes through the third limiting assembly and the fourth limiting assembly in sequence; one end of each expansion rod in the third expansion rod group is fixed to the third limiting assembly, and the other end passes through the fourth limiting assembly; one end of each expansion rod in the fourth expansion rod group is fixed to the fourth limiting assembly.

4. The tube expansion device according to claim 3, characterized in that: The first limiting assembly includes a first mounting member, a first fixing member, a first screw rod and a first driving member. The first fixing member is arranged on the side of the first mounting member facing away from the second limiting assembly. One end of each expansion rod of the first expansion rod group is inserted into the first fixing member. The first driving member is transmission-connected to the first screw rod. The first screw rod is rotatably passed through the first mounting member, and the other end is threadedly engaged with the third limiting assembly.

5. The tube expansion device according to claim 4, characterized in that: The first limiting assembly further includes a limiting member and a telescopic member, wherein the limiting member is slidably mounted between the first fixing member and the first mounting member and is provided with a plurality of slots, and the telescopic member is connected to the limiting member to drive the limiting member to move along the third direction; A clamping portion is provided at one end of each expansion rod of the first expansion rod group connected to the first fixing member, and the clamping portion is clamped and matched with the clamping slot.

6. The tube expansion device according to claim 3, characterized in that: The second limit assembly includes a second mounting member, a second fixing member and a second screw rod, the second fixing member is arranged on a side of the second mounting member close to the first limit assembly, one end of each expansion rod of the second expansion rod group is inserted into the second fixing member, and one end of the second screw rod is threadedly engaged with the second mounting member; The third limiting assembly includes a second driving member, and the second driving member is transmission-connected to an end of the second screw rod away from the second mounting member.

7. The tube expansion device according to claim 6, characterized in that: The third limiting assembly further includes a third mounting member and a third fixing member. The third fixing member is arranged on a side of the third mounting member facing away from the second limiting assembly. One end of each expansion rod of the third expansion rod group is inserted into the third fixing member.

8. The tube expansion device according to claim 7, characterized in that: The fourth limiting assembly includes a fourth mounting member, a fourth fixing member and a third screw rod, the fourth mounting member is arranged on a side of the third limiting assembly facing away from the second limiting assembly, the fourth fixing member is arranged on a side of the fourth mounting member close to the third limiting assembly, one end of each expansion rod of the fourth expansion rod group is inserted into the fourth fixing member, and one end of the third screw rod is threadedly matched with the fourth mounting member; The third limiting assembly includes a third driving member, and the third driving member is transmission-connected to an end of the third screw rod away from the fourth mounting member.

9. The tube expansion device according to any one of claims 1 to 8, characterized in that: The tube expansion device also includes a guide assembly, which includes a plurality of guide plates stacked along the second direction and a plurality of guide rods parallel to the second direction, each of the guide plates is provided with a guide hole for each expansion rod to pass through, at least one guide rod is connected between two adjacent guide plates, and the guide plate located at the top in the second direction is connected to a limit assembly through at least one guide rod.

10. A heat exchange component production equipment, characterized in that: The invention comprises the tube expansion device according to any one of claims 1 to 9.

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