Double-pipe expanding device for condenser machining

Abstract

The utility model is applicable to the technical field of condenser processing, and provides a double-tube expanding device for condenser processing, which comprises a base plate, and a mounting box is fixed at the top of the base plate; the assembling frames are symmetrically arranged in the mounting box, the distance between the assembling frames is adjustable, and rotating rods are rotationally mounted on the two assembling frames; the pipe expanding head is fixedly arranged on the rotating rod through a coupling and is used for expanding a pipe; the mounting frame is fixedly mounted on the assembling frame, a single-shaft motor is fixedly mounted on the mounting frame, and an output shaft of the single-shaft motor is fixedly connected with the rotating rod through a coupler. According to the double-pipe expanding device for condenser machining, the problem that the pipe expanding machining efficiency of an existing condenser is low is solved.

Description

Technical Field

[0001] This utility model belongs to the field of condenser processing technology, and in particular relates to a double-tube expansion device for condenser processing. Background Technology

[0002] In today's booming refrigeration industry, the condenser, as the core component of heat exchange equipment, shoulders the crucial mission of heat exchange. The multiple condenser tubes arranged inside the condenser are the key elements for achieving efficient heat exchange; through interaction with media such as refrigerant and air, it promotes heat transfer and ensures the stable operation of the refrigeration system.

[0003] However, in the actual assembly and application process of condensers, the connection between condenser tubes is crucial. In order to achieve convenient and stable pipe connections, traditional processes generally use tube expansion to expand one end of the condenser tube. This operation increases the diameter of the tube end, which can fit tightly to the connecting fittings, effectively reducing the risk of leakage, improving the overall connection reliability, and providing a solid guarantee for the sealing of the refrigeration system. However, this single tube expansion device can only expand one condenser tube at a time. Expanding one tube at a time means that the clamping, expansion, and unloading processes need to be repeated frequently, resulting in low processing efficiency. Utility Model Content

[0004] This invention provides a dual-tube expansion device for condenser processing, aiming to solve the problem of low efficiency in current condenser tube expansion processing.

[0005] This utility model is implemented as follows: a dual-tube expansion device for condenser processing, comprising: a base plate, with a mounting box fixed to the top of the base plate; symmetrically arranged assembly racks with adjustable spacing within the mounting box, each assembly rack having a rotating rod rotatably mounted on it; expansion heads for tube expansion fixedly mounted on the rotating rods via couplings; a mounting bracket fixedly mounted on the assembly racks, with a single-axis motor fixedly mounted on the mounting bracket, the output shaft of the single-axis motor being fixedly connected to the rotating rods via a coupling; an adjustment mechanism disposed within the mounting box for adjusting the spacing between the two assembly racks; and a fixing mechanism disposed on the base plate and the mounting box for fixing the condenser tubes to be expanded for cooling.

[0006] Preferably, the adjustment mechanism includes: a dual-axis motor fixedly installed inside the mounting box; mounting blocks symmetrically fixedly installed inside the mounting box; a bidirectional screw mounted on the mounting block via bearings, one end of the bidirectional screw threaded through the mounting frame and fixedly connected to the output shaft of the dual-axis motor; and a guide rod fixedly installed inside the mounting box, the guide rod passing through the mounting frame.

[0007] Preferably, the fixing mechanism includes: support columns symmetrically fixedly installed on the base plate, with a first clamping block fixedly installed on the top of the support column for placing the condenser tube to be processed into a cold expansion tube; a bracket symmetrically fixedly installed on the top of the mounting box, with an electric telescopic rod fixedly installed on the bracket; and a detachable second clamping block assembled on the output rod of the electric telescopic rod.

[0008] Preferably, a groove block is fixedly installed on the output rod of the electric telescopic rod, and a plug block is fixedly installed on the groove block by bolts, with the bottom end of the plug block being fixedly connected to the top of the second clamping block.

[0009] Preferably, the mounting box has symmetrical openings for the expansion tube head and the assembly frame to enter and exit.

[0010] Preferably, both the first clamping block and the second clamping block are fixedly equipped with anti-slip pads.

[0011] Preferably, a maintenance plate is fixedly mounted on the mounting box by screws, and the maintenance plate is provided with a visual observation window.

[0012] Compared with related technologies, the dual-tube expansion device for condenser processing provided by this utility model has the following beneficial effects:

[0013] The internal components are protected by the mounting box, which maintains a neat structure. The rotating rod, driven by a single-axis motor, drives the tube expansion head to rotate and expand the tube. The mounting frame firmly supports the single-axis motor, ensuring stable power transmission and effectively completing the tube expansion action, thus ensuring the tightness of the condenser tube connection. In the adjustment mechanism, a dual-axis motor serves as the core driver of the bidirectional screw, working with the mounting block and guide rod to quickly and accurately adjust the spacing of the assembly frame, saving adjustment time, improving equipment debugging and production efficiency, and adapting to condenser tubes of different diameters, thus enhancing the versatility of the device. In the fixing mechanism, the support column and the first clamping block stably place the condenser tube, and the bracket is reasonably positioned with an electric telescopic rod. The electric telescopic rod drives the second clamping block to cooperate with the first clamping block for clamping, which is convenient to operate, provides consistent clamping force, and the second clamping block is detachable, making it easy to replace with tubes of different diameters, reducing clamping time, maintenance costs, and downtime, and ensuring the quality of tube expansion. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a double-tube expansion device for condenser processing provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure;

[0018] Figure 5 This is a schematic diagram of the structure of the first clamping block and the second clamping block in this utility model.

[0019] Reference numerals: 1. Base plate; 2. Mounting box; 3. Assembly frame; 4. Rotating rod; 5. Expanding tube head; 6. Mounting frame; 7. Single-axis motor; 8. Dual-axis motor; 9. Mounting block; 10. Bidirectional screw; 11. Guide rod; 12. Support column; 13. First clamping block; 14. Pad block; 15. Bracket; 16. Electric telescopic rod; 17. Groove block; 18. Insertion block; 19. Second clamping block. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model provides a double-tube expansion device for condenser processing, such as... Figure 1-5 As shown, the dual-tube expansion device for condenser processing includes: a base plate 1, with a mounting box 2 fixed to the top of the base plate 1; symmetrically arranged assembly racks 3 with adjustable spacing within the mounting box 2, each assembly rack 3 having a rotating rod 4 rotatably mounted on it; expansion heads 5 for tube expansion fixedly mounted on the rotating rods 4 via couplings; a mounting frame 6 fixedly mounted on the assembly racks 3, with a single-axis motor 7 fixedly mounted on it, the output shaft of the single-axis motor 7 being fixedly connected to the rotating rods 4 via couplings; an adjustment mechanism within the mounting box 2 for adjusting the spacing between the two assembly racks 3; and a fixing mechanism on the base plate 1 and the mounting box 2 for fixing the condenser tubes to be expanded.

[0023] In this embodiment, the mounting box is fixed to the top of the base plate, serving to protect the internal components and organize the device structure. The rotating rod, mounted on the assembly frame, is a key component for power transmission. Driven by a single-axis motor, it rotates stably, thereby driving the tube expander head to rotate and achieve the tube expansion action. The tube expander head is fixedly mounted on the rotating rod via a coupling, directly acting on the inner wall of the condenser tube. Utilizing the centrifugal force generated by rotation and its own special structure, it expands the tube end diameter, achieving the purpose of tube expansion and ensuring the tightness of the condenser tube connection. The mounting frame is fixedly mounted on the assembly frame, providing stable support for the single-axis motor and ensuring that the motor will not shift during high-speed operation, guaranteeing the stability of power transmission. The output shaft of the single-axis motor is fixedly connected to the rotating rod via a coupling, serving as the power source of the device and providing continuous and strong power for the rotation of the tube expander head, driving the tube expansion operation efficiently. The adjustment mechanism, located inside the mounting box, controls the distance between the two assembly racks. Operators can quickly and accurately adjust the distance between the assembly racks by simply operating the adjustment mechanism to accommodate condenser tubes of different sizes, without the need for complex tool replacements or recalibration, saving time and improving production efficiency. The fixing mechanism, located on the base plate and mounting box, is used to fix the condenser tubes to be expanded. During the expansion process, it can firmly lock the condenser tubes to prevent displacement and avoid problems such as uneven expansion and loose connections caused by tube shaking, ensuring the quality of tube expansion. In summary, this utility model's dual-tube expansion device for condenser processing, through the coordinated work of its components, especially its ability to process two tubes simultaneously and its convenient adjustment and fixing functions, effectively solves the problem of low efficiency in current condenser tube expansion processing, improving the production efficiency and quality of the condenser tube connection process.

[0024] In a further preferred embodiment of the present invention, the adjustment mechanism includes: a dual-axis motor 8 fixedly installed in the mounting box 2; a mounting block 9 symmetrically fixedly installed in the mounting box 2; a bidirectional screw 10 mounted on the mounting block 9 by bearings, one end of the bidirectional screw 10 threaded through the mounting frame 3 and fixedly connected to the output shaft of the dual-axis motor 8; and a guide rod 11 fixedly installed in the mounting box 2, the guide rod 11 passing through the mounting frame 3.

[0025] In this embodiment, the dual-axis motor 8 is fixedly installed in the mounting box 2 and serves as the core power source of the adjustment mechanism. It has the ability to simultaneously drive the two ends of the bidirectional screw 10 to rotate. Compared with the single-axis drive method, it can more efficiently and synchronously adjust the distance between the two assembly frames 3, greatly saving adjustment time and improving the equipment debugging efficiency in the production process. It provides strong support for the processing tasks of quickly switching between different specifications of condenser tubes. The mounting block 9 is symmetrically fixedly installed in the mounting box 2, providing a stable and reliable mounting support for the bidirectional screw 10. It ensures that the screw will not deviate or shake during high-speed rotation, ensuring the accuracy and stability of the adjustment action. This allows the assembly frame 3 to move smoothly along the predetermined trajectory, thereby ensuring the accuracy requirements for clamping the condenser tubes. The bidirectional screw 10 is mounted on the mounting block 9 through bearings, and one end of its thread passes through the assembly frame 3 and is fixedly connected to the output shaft of the dual-axis motor 8. When the dual-axis motor 8 starts running, the bidirectional screw 10 rotates accordingly. Utilizing the principle of threaded transmission, it drives the two assembly frames 3 to move towards or away from each other, achieving flexible adjustment of the spacing. This allows for precise adaptation to condenser tubes of various diameters, eliminating the need for manual measurement and calibration of the spacing. The operation is convenient and highly accurate, effectively improving the versatility and ease of use of the device. The guide rod 11 is fixedly installed inside the mounting box 2 and passes through the assembly frame 3. As the assembly frame 3 moves with the bidirectional screw 10, it plays a crucial guiding and limiting role. It constrains the movement direction of the assembly frame 3, ensuring that it can only move in a straight line along the guide rod 11. This avoids deviations or skewing caused by uneven force on the assembly frame 3 or other external interference factors, further ensuring the accuracy of the spacing adjustment between the two assembly frames 3. This guarantees that the tube expansion operation can be carried out accurately and stably, improving product processing quality.

[0026] In a further preferred embodiment of the present invention, the fixing mechanism includes: a support column 12 symmetrically fixedly installed on the base plate 1, a first clamping block 13 fixedly installed on the top of the support column 12 for placing the condenser tube to be processed into a cold expansion tube; a bracket 15 symmetrically fixedly installed on the top of the mounting box 2, an electric telescopic rod 16 fixedly installed on the bracket 15; and a second clamping block 19 detachably mounted on the output rod of the electric telescopic rod 16.

[0027] In this embodiment, the support columns 12 are symmetrically fixedly installed on the base plate 1, forming a stable bottom support structure. This provides a solid foundation for the subsequent placement of the condenser tubes, ensuring that the entire fixing device will not easily shake or shift, guaranteeing the stability of the bottom of the condenser tubes during the tube expansion operation, and creating conditions for high-precision tube expansion. The first clamping block 13 is installed on the top of the support column 12. Its shape is designed to fit the outer wall of the condenser tube. When the condenser tube is placed on it, it can effectively bear the weight of the tube body, initially limiting the horizontal position of the tube body and preventing it from rolling randomly on the horizontal surface, ensuring the orderly progress of the tube expansion preparation stage. The bracket 15 is symmetrically fixedly installed on the top of the mounting box 2, making reasonable use of the space above the mounting box 2 to provide a stable high mounting point for the electric telescopic rod 16, enabling the electric telescopic rod 16 to act vertically downwards, accurately corresponding to the condenser tubes to be processed below. The layout is compact and reasonable, optimizing the space utilization of the device. The electric telescopic rod 16 is fixedly installed on the bracket 15, serving as the power drive component of the fixing mechanism, and can move precisely in extension and retraction according to control commands. During tube expansion, the electric telescopic rod 16 extends, driving the second clamping block 19 downwards to cooperate with the first clamping block 13 to clamp the condenser tube. Compared with the traditional manual clamping method, the operation is more convenient and faster, greatly shortening the clamping time and improving production efficiency. Moreover, the electric control can ensure the consistency of clamping force each time, avoiding problems such as condenser tube deformation or insecure clamping caused by uneven force during manual operation, thus ensuring the quality of tube expansion. The second clamping block 19 is mounted on the output rod of the electric telescopic rod 16 and is detachable. This detachable design is highly flexible. On the one hand, it is easy to replace the appropriate second clamping block 19 according to the condenser tube of different diameters, ensuring that the clamping block fits tightly with the outer wall of the tube and enhances the clamping effect. On the other hand, when the clamping block is worn or malfunctions, it can be replaced in time without affecting the continuous operation of the entire device, reducing maintenance costs and downtime, and maintaining an efficient production rhythm.

[0028] In a further preferred embodiment of the present invention, a groove block 17 is fixedly installed on the output rod of the electric telescopic rod 16, and a plug block 18 is fixedly installed on the groove block 17 by bolts. The bottom end of the plug block 18 is fixedly connected to the top of the second clamping block 19.

[0029] In this embodiment, the connecting assembly consisting of the groove block 17, the plug block 18, and the second clamping block 19, with its stable and flexible connection design, not only ensures reliable transmission between the electric telescopic rod 16 and the second clamping block 19, enabling the second clamping block 19 to efficiently complete the clamping task, but also benefits from its easy disassembly and replacement characteristics.

[0030] In a further preferred embodiment of this utility model, the mounting box 2 is symmetrically provided with openings for the expansion tube head 5 and the assembly frame 3 to enter and exit.

[0031] In this embodiment, when it is necessary to expand the condenser tubes, the expansion head 5 can smoothly enter and exit the installation box 2 through the port.

[0032] In a further preferred embodiment of the present invention, both the first clamping block 13 and the second clamping block 19 are fixedly installed with anti-slip pads 14.

[0033] In this embodiment, when the condenser tube to be expanded is placed on the first clamping block 13, the pad 14 directly contacts the outer wall of the condenser tube. On the one hand, during the initial placement stage, the pad 14, with its anti-slip surface, can effectively increase the friction between itself and the condenser tube, preventing the condenser tube from sliding or shifting on the first clamping block 13 due to its own weight or slight external force. This ensures that the condenser tube is in a relatively stable preparatory state before clamping, laying the foundation for subsequent precise clamping and tube expansion operations.

[0034] In a further preferred embodiment of this utility model, a maintenance plate is fixedly installed on the mounting box 2 by screws, and a visual observation window is provided on the maintenance plate.

[0035] In this embodiment, after long-term operation, internal components such as the dual-axis motor 8, unidirectional screw 10, and expansion head 5 will inevitably experience wear, malfunctions, or require regular maintenance. At this time, the presence of the inspection plate becomes particularly crucial. By unscrewing the screws, operators can easily open the inspection plate and quickly and directly access the components inside the mounting box 2.

[0036] In summary, the internal components are protected and the structure is organized by the mounting box 2. The rotating rod 4 drives the tube expansion head 5 to rotate under the drive of the single-axis motor 7 to achieve tube expansion. The mounting frame 6 firmly supports the single-axis motor 7, ensuring stable power transmission and effectively completing the tube expansion action, ensuring the tightness of the condenser tube connection. In the adjustment mechanism, the dual-axis motor 8 serves as the core to drive the bidirectional screw 10. Together with the mounting block 9 and the guide rod 11, it quickly and accurately adjusts the spacing of the assembly frame 3, saving adjustment time, improving equipment debugging and production efficiency, adapting to condenser tubes of different diameters, and improving the versatility of the device. In the fixing mechanism, the support column 12 and the first clamping block 13 stably place the condenser tube. The bracket 15 reasonably houses the electric telescopic rod 16. The electric telescopic rod 16 drives the second clamping block 19 to cooperate with the first clamping block 13 to clamp. The operation is convenient and the clamping force is consistent. Moreover, the second clamping block 19 is detachable, which is convenient for replacement to adapt to different tube diameters, reducing clamping time, maintenance costs and downtime, and ensuring the quality of tube expansion.

[0037] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0038] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A double tube expander for condenser processing, characterized by comprising: The utility model relates to a cold expansion pipe processing device, including: The top of base plate is fixed with installation box; Symmetrical installation frame is arranged in the installation box and the interval is adjustable, and the rotatable installation of two installation frames has the rotation bar; The expansion pipe head for expansion pipe is fixedly installed on the rotation bar through the shaft coupling; The mounting frame is fixedly installed on the installation frame, the single-shaft motor is fixedly installed on the mounting frame, and the output shaft of the single-shaft motor is fixedly connected with the rotation bar through the shaft coupling; Adjusting mechanism for adjusting the interval between two installation frames is arranged in the installation box; Fixing mechanism is arranged on the base plate and the installation box, and is used for fixing the condenser pipe to be processed.

2. The condenser tube expander for processing double tubes as set forth in claim 1, wherein The adjusting mechanism includes: Double-shaft motor is fixedly installed in the installation box; Mounting block is fixedly installed in the installation box symmetrically; Two-way screw rod is assembled on the mounting block through bearing, one end of the two-way screw rod is screwed through the installation frame and is fixedly connected with the output shaft of the double-shaft motor; Guide rod is fixedly installed in the installation box, and the guide rod penetrates the installation frame.

3. The condenser tube expander for processing double tubes as defined in claim 1, wherein The fixing mechanism includes: Support column is fixedly installed on the base plate symmetrically, the top of support column is fixedly installed with first clamping block, and is used for placing the condenser pipe to be processed; Support is fixedly installed on the top of installation box symmetrically, and electric telescopic rod is fixedly installed on the support; Second clamping block is assembled on the output rod of electric telescopic rod and can be detached.

4. The condenser tube expander for processing double tubes as set forth in claim 3, wherein The recess block is fixedly installed on the output rod of electric telescopic rod, the plug-in block is fixedly installed on the recess block through bolt, and the bottom end of plug-in block is fixedly connected with the top of second clamping block.

5. The condenser tube expander for processing double tubes as defined in claim 1, wherein The installation box is symmetrically provided with the through port that can be used for the egress of expansion pipe head and installation frame.

6. The condenser tube expander for processing double tubes as defined in claim 3, wherein The first clamping block and the second clamping block are fixedly installed with the pad block for antiskid.

7. The condenser tube expander as set forth in claim 1, wherein The maintenance plate is fixedly installed on the installation box through screw, and visual observation window is arranged on the maintenance plate.

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