Connector correcting device after heat exchanger assembly

Abstract

The utility model relates to the field of connector correcting devices, particularly discloses a connector correcting device after heat exchanger assembly, and solves the technical problem that the position of a connector cannot be corrected during necking in the existing heat exchanger assembly process. The connector correction device after heat exchanger assembly comprises a main base; the lower heat exchanger supporting pieces are oppositely arranged on the main base, each lower heat exchanger supporting piece is provided with a positioning groove used for supporting a heat exchanger, and a mounting groove is formed in the side, close to the other supporting piece, of each lower heat exchanger supporting piece; the two ends of the connecting bottom plate are inserted into the mounting grooves of the lower heat exchanger supporting pieces on the two sides respectively, the connecting bottom plate and the lower heat exchanger supporting pieces are connected through springs, and the connecting bottom plate can reciprocate in the vertical direction; the pressure executing mechanism comprises a pressing plate and a servo motor for driving the pressing plate to move along the Z axis; the necking die is arranged on the side of the lower heat exchanger supporting piece, and the device can correct the position of a heat exchanger connector in real time in the necking process.

Description

TECHNICAL FIELD

[0001] The utility model relates to joint correction device technical field, specifically, relates to a heat exchanger after assembling joint correction device. BACKGROUND

[0002] As the core device of industrial heat transfer system, the performance of heat exchanger directly affects the energy efficiency level of key fields such as energy chemical industry, automobile manufacturing and HVAC system. The equipment plays an irreplaceable role in refrigeration cycle, waste heat recovery and other scenes by strengthening the heat transfer between fluids. Its core component structure has precise thermal-mechanical coupling characteristics: high-efficiency heat exchange pipe adopts corrugated inner wall or micro-rib structure design to improve the heat transfer coefficient by increasing the turbulent effect; the aluminum alloy fin with surface anodizing treatment is combined with the pipe wall through the contact welding process, and its three-dimensional window structure can increase the effective heat exchange area to 8-12 times of the base pipe wall; the connecting pipe made of 304L stainless steel material realizes complex flow path layout through numerical control pipe bending machine; the double-clamping type joint ensures the long-term sealing of the system under 6MPa working pressure through the multi-layer sealing ring and the pre-stressed structure.

[0003] The process chain of the existing patent CN111975312B "5-tube single-channel heat exchanger assembly production system" still has significant optimization space. Although the existing technology can realize the automatic assembly process of the connecting pipe, the joint and the heat exchange pipe, after the assembly of the connecting pipe and the joint with the heat exchange pipe is completed, the mechanical hand places the assembled heat exchanger at the press machine to press the interface and shrink the opening, but the prior patent does not disclose the specific structure of the shrinking device, and the existing shrinking device does not have the function of correcting the position of the joint while shrinking. Real-time monitoring data shows that the joint offset caused by material plastic flow during the pressing process can reach 0.3-0.5mm. The position deviation caused by such dynamic deformation can cause two key problems: first, the leakage rate of misaligned interfaces in the subsequent helium leak detection process increases by about 40%; second, stress concentration reduces the fatigue life under vibration conditions by 30%. The root cause is that the existing press machine only has one-way pressing function and lacks real-time correction ability. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of heat exchanger after assembling joint correction device, solve the technical problems that current heat exchanger assembly process cannot correct the position of joint while shrinking.

[0005] The utility model provides a heat exchanger is assembled and is connected with joint correction device, include: main base, a pair of lower heat exchanger support spare, opposite setting on the main base, every lower heat exchanger support spare is equipped with the positioning groove for supporting heat exchanger, and every lower heat exchanger support spare is equipped with the mounting groove on the side close to another support spare, the connecting bottom plate, its both ends are inserted the mounting groove of two sides lower heat exchanger support spare respectively, the connecting bottom plate passes through spring connection with lower heat exchanger support spare, and the connecting bottom plate can reciprocate along vertical direction, pressure execution mechanism contains the pressing plate and the servo motor of driving the pressing plate moves along Z axle, necking mould is set up in the side of lower heat exchanger support spare.

[0006] According to one embodiment of the utility model, the bottom of the two lower heat exchanger support pieces is provided with a first sliding block, and the main base is provided with a first sliding groove extending along the connection direction of the two lower heat exchanger support pieces, and the first sliding block and the first sliding groove are in sliding connection.

[0007] According to one embodiment of the utility model, the main base is sequentially provided with a first auxiliary base and a second auxiliary base below, and the three together form a ladder structure.

[0008] According to one embodiment of the utility model, the second auxiliary base is provided with a second sliding groove extending along the connection direction of the two lower heat exchanger support pieces, and the necking mould is provided with a second sliding block, and the second sliding block is in sliding arrangement in the second sliding groove.

[0009] According to one embodiment of the utility model, the necking mould comprises a necking column, a supporting column, a second sliding block connected to the bottom of the supporting column, a rotating rod and a connecting platform, the necking column is arranged on the connecting platform, the rotating rod is arranged away from the necking column and is connected to the second auxiliary base along the vertical direction through the connecting platform.

[0010] According to one embodiment of the utility model, the necking column comprises a column body and a limiting piece threadedly connected to the column body.

[0011] According to one embodiment of the utility model, the necking mould is provided with a plurality of symmetric arrangements along the interface connection direction of the heat exchanger pipeline.

[0012] According to one embodiment of the utility model, the pressing plate is provided with a positioning piece matching the shape and position of the lower heat exchanger support piece, and the positioning piece and the lower heat exchanger support piece jointly form a through hole matching the diameter of the heat exchanger pipeline.

[0013] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0014] The utility model discloses a position adjustable necking die is arranged on the side of lower heat exchanger support piece, can carry out real -time correction to the position of heat exchanger joint in the necking process. The device can significantly reduce the position deviation caused by the dynamic deformation of the interface, thereby ensuring the accuracy and stability of the interface, since the joint offset is reduced, the interface is more accurate, and the leakage rate in the subsequent helium leak detection process is reduced. Greatly improve the sealing performance and reliability of the system. At the same time, by the design of slider and sliding slot, the whole device has good flexibility and adaptability, and the relative position of the two lower heat exchanger support pieces can be conveniently adjusted according to different production requirements, the heat exchanger of each different size is better matched, and the universality and practicality of the device are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope. For ordinary skilled in the art, other related drawings can also be obtained according to these drawings without creative labor.

[0016] Figure 1 The structure schematic view of the heat exchanger joint correction device provided for the embodiment 1 of the utility model is shown in the figure.

[0017] Figure 2 The connection structure schematic view of one of the lower heat exchanger support pieces and the connecting bottom plate of the heat exchanger joint correction device provided for the embodiment 1 of the utility model is shown in the figure.

[0018] Figure 3 The structure schematic view of the heat exchanger joint correction device provided for the embodiment 2 of the utility model is shown in the figure.

[0019] Figure 4 The necking column structure schematic view of the heat exchanger joint correction device provided for the embodiment 3 of the utility model is shown in the figure.

[0020] Figure:

[0021] 100, main base; 110, first auxiliary base; 120, second auxiliary base;

[0022] 200, lower heat exchanger support piece; 210, positioning groove;

[0023] 300, connecting bottom plate;

[0024] 400, pressing plate; 410, positioning piece; 411, auxiliary groove;

[0025] 510, support column; 520, necking column; 521, column body; 522, limiting piece; 530, rotating rod; 540, connecting platform;

[0026] 600, spring;

[0027] 700, servo motor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely 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 the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Embodiment 1

[0030] The embodiments of the present application provide a joint correction device for heat exchanger after assembly, so as to correct the position of the joint while necking.

[0031] Referring to Figure 1 The joint correction device for heat exchanger after assembly provided by the embodiments of the present application comprises: a main base 100, which is the basic structure of the whole device and provides stable support;

[0032] A pair of lower heat exchanger support members 200 are oppositely arranged on the main base 100. Each lower heat exchanger support member 200 is provided with a positioning groove 210 for supporting the heat exchanger, so as to accurately fix the position of the heat exchanger. Each lower heat exchanger support member 200 is provided with a mounting groove on the side close to the other support member, so as to facilitate the installation of the connecting bottom plate 300. In the embodiments, the positioning groove 210 is U-shaped.

[0033] Referring to Figure 2 The connecting bottom plate 300 is inserted into the mounting grooves of the two lower heat exchanger support members 200 at both ends. The connecting bottom plate 300 and the lower heat exchanger support members 200 are connected through springs 600. The connecting bottom plate 300 can move back and forth in the vertical direction.

[0034] The pressure actuator includes a pressing plate 400 and a servo motor 700 driving the pressing plate 400 to move along the Z-axis. The servo motor 700 drives the pressing plate 400 to reciprocate along the vertical direction to drive the pressing plate 400 to push the heat exchanger to move downward along the vertical direction. In the embodiment, the rotary motion of the servo motor 700 is transmitted to a ball screw through a coupling, and the ball screw converts the rotary motion into linear motion to drive the nut fixed thereon to move along the Z-axis direction. The nut can be directly or indirectly connected with the pressing plate 400. In the embodiment, the pressing plate 400 is provided with an auxiliary groove 411 matched with the position of the lower heat exchanger support 200 to further realize the positioning effect.

[0035] The necking die is arranged on the side of the lower heat exchanger support 200. Specifically, the necking die is located directly below the heat exchanger interface. When the pressing plate 400 moves downward along the vertical direction, the heat exchanger is driven to move downward along the vertical direction. Then, the interface of the heat exchanger is connected with the necking die to realize the necking operation of the heat exchanger interface.

[0036] In the embodiment, the bottom of each of the two lower heat exchanger supports 200 is provided with a first sliding block, and the main base 100 is provided with a first sliding groove extending along the connection direction of the two lower heat exchanger supports 200. The first sliding block and the first sliding groove are in sliding connection.

[0037] In the embodiment, the main base 100 is sequentially provided with a first auxiliary base 110 and a second auxiliary base 120 below, and the three together form a stepped structure.

[0038] In the embodiment, the second auxiliary base 120 is provided with a second sliding groove extending along the connection direction of the two lower heat exchanger supports 200, and the necking die is provided with a second sliding block. The second sliding block is slidingly arranged in the second sliding groove.

[0039] In the embodiment, the necking die includes a necking column 520, a support column 510, a second sliding block connected to the bottom of the support column 510, a rotating rod 530, and a connecting platform 540. The necking column 520 is arranged on the connecting platform 540. The rotating rod 530 is arranged away from the necking column 520 and connected to the second auxiliary base 120 through the connecting platform 540 along the vertical direction. The necking die can freely slide in the sliding groove on the second auxiliary base 120, which facilitates the adjustment of the position according to the actual needs and ensures the effective correction of the heat exchanger joint during the necking process. The connecting platform 540 can be supported by the first auxiliary base 110 to ensure the necking effect.

[0040] In the embodiment, the pressing plate 400 is provided with a positioning piece 410 matched with the shape and position of the lower heat exchanger support 200, the positioning piece 410 and the lower heat exchanger support 200 enclose a through hole matched with the diameter of the heat exchanger pipe, so that the heat exchanger is located between the positioning piece 410 and the lower heat exchanger support 200, and displacement is prevented.

[0041] The use process of the heat exchanger joint correction device after assembly of the utility model embodiment 1 is described in detail below:

[0042] In use, first, the heat exchanger to be processed is placed above the positioning groove 210 of the two lower heat exchanger supports 200, ensuring stable and accurate positioning, then the pressure actuator driven by the servo motor 700 is started to make the pressing plate 400 descend to the predetermined position and apply appropriate pressure to the heat exchanger, so that the heat exchanger is appropriately lowered to make the heat exchanger interface butt joint with the necking column 520, specifically, the heat exchanger is sleeved on the necking column 520, and then the necking operation of the heat exchanger interface is realized, in this process, the necking die not only completes the necking task, but also prevents possible joint deviation through orientation adjustment to realize position correction and ensure the high quality standard of the final product.

[0043] Embodiment 2

[0044] The utility model embodiment provides a kind of heat exchanger joint correction device after assembly, to carry out position correction to joint while necking.

[0045] The heat exchanger joint correction device after assembly provided by the utility model embodiment 2 is only different from the embodiment 1 in that,

[0046] Please refer to Figure 3 In the embodiment, the necking die is provided with multiple, and is symmetrically arranged along the interface connection direction of the heat exchanger pipe, in the embodiment, the necking die is provided with two, to carry out necking to the two joints of heat exchanger.

[0047] Embodiment 3

[0048] The utility model embodiment provides a kind of heat exchanger joint correction device after assembly, to carry out position correction to joint while necking.

[0049] The heat exchanger joint correction device after assembly provided by the utility model embodiment 3 is only different from the embodiment 1 in that,

[0050] In the embodiment, please refer to Figure 4 The necking column 520 includes a column body 521 and a limiting piece 522 threadedly connected to the column body 521, the limiting piece 522 can reciprocate on the column body 521 in vertical direction, and the relative position of the limiting piece 522 and the column body 521 is adjusted to adjust the necking position.

[0051] The embodiments of the utility model have at least the following advantages:

[0052] The utility model discloses a position adjustable necking die is arranged on the side of lower heat exchanger support spare, can be in the real -time correction of the position of heat exchanger joint in the necking process. The device can significantly reduce the position deviation caused by the dynamic deformation of the interface, thereby ensuring the accuracy and stability of the interface, because the joint offset is reduced, the interface is more accurate, and the leakage rate in the subsequent helium leak detection process is reduced. Greatly improve the sealing performance and reliability of the system. At the same time, by the design of slider and sliding slot, the whole device has good flexibility and adaptability, and the relative position of the two lower heat exchanger supports can be conveniently adjusted according to different production requirements, better cooperate with various different size heat exchangers, enhance the versatility and practicality of the device.

[0053] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat exchanger post-assembly joint correction device, characterized by, The utility model relates to a heat exchanger pipe necking device, including: A main base; A pair of lower heat exchanger supports are oppositely arranged on the main base, each lower heat exchanger support is provided with a positioning groove for supporting a heat exchanger, and each lower heat exchanger support is provided with a mounting groove near one side of the other support; A connecting bottom plate is inserted into the mounting groove of the lower heat exchanger support on both sides respectively, the connecting bottom plate and the lower heat exchanger support are connected through a spring, and the connecting bottom plate can reciprocate in the vertical direction; A pressure actuator includes a pressing plate and a servo motor for driving the pressing plate to move along the Z-axis; A necking die is arranged on the side of the lower heat exchanger support.

2. The heat exchanger post-assembly joint correction device of claim 1, wherein, The bottom of each of the two lower heat exchanger supports is provided with a first sliding block, the main base is provided with a first sliding groove extending along the connection direction of the two lower heat exchanger supports, and the first sliding block and the first sliding groove are in sliding connection.

3. The heat exchanger post-assembly joint correction device of claim 1, wherein, The main base is sequentially provided with a first secondary base and a second secondary base below, and the three form a stepped structure together.

4. The heat exchanger post-assembly joint correction device of claim 3, wherein, The second secondary base is provided with a second sliding groove extending along the connection direction of the two lower heat exchanger supports, the necking die is provided with a second sliding block, and the second sliding block is slidingly arranged in the second sliding groove.

5. The heat exchanger post-assembly joint correction device of claim 3, wherein, The necking die includes a necking column, a supporting column, a second sliding block connected to the bottom of the supporting column, a rotating rod, and a connecting platform, the necking column is arranged on the connecting platform, the rotating rod is arranged away from the necking column and penetrates the connecting platform in the vertical direction and is connected to the second secondary base.

6. The heat exchanger post-assembly joint correction device of claim 5, wherein, The necking column includes a column body and a limiting piece threadedly connected to the column body.

7. The heat exchanger post-assembly joint correction device of claim 1, wherein, The necking die is provided with a plurality of necking dies, which are symmetrically arranged along the interface connection direction of the heat exchanger pipe.

8. The heat exchanger post-assembly joint correction device of claim 1, wherein, The pressing plate is provided with a positioning piece matched with the shape and position of the lower heat exchanger support, and the positioning piece and the lower heat exchanger support enclose a through hole matched with the diameter of the heat exchanger pipe.

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