Automatic connecting pipe feeding device for heat exchanger assembling machine

Abstract

The utility model relates to an automatic connecting pipe feeding device for a heat exchanger assembling machine, and aims to solve the problems that in the prior art, connecting pipes need to be manually sorted and then placed on a special carrier, and the automation degree is low. The device comprises a feeding groove; the spiral track is arranged on the feeding groove, and the vertical section of the track surface is in an inclined state; the arc-shaped guide section is arranged below the tail end of the spiral track and is partially overlapped with the spiral track, and a position correcting pipe is arranged between the arc-shaped guide section and the spiral track to ensure that the orifice of the connecting pipe faces upwards; the output track extends into the feeding groove, and the starting end is located below the tail end of the arc-shaped guide section and close to the inner side of the arc-shaped guide section; the pushing assembly comprises a pushing shaft and a pushing plate fixed in the circumferential direction of the pushing shaft, and the pushing shaft is located at the junction of the arc-shaped guide section and the output rail; the driving assembly is used for driving the pushing plate to rotate around the pushing shaft and pushing the connecting pipe to the output rail from the spiral rail; and the vibrating part is arranged in the feeding groove and provides vibrating components in the horizontal direction and the vertical direction, and automatic feeding of the connecting pipe can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting pipe automatic feeding device technical field, specifically, a kind of connecting pipe automatic feeding device for heat exchanger assembly machine. BACKGROUND

[0002] The heat exchanger is composed of heat exchange pipes, fins, connecting pipes, joints and other components. The existing heat exchanger automatic assembly system (publication number: CN111975312B) adopts a modular design architecture, including a tube bundle positioning mechanism, a multi-axis linkage welding unit, and a visual detection device as core modules, which can realize the full-automatic assembly of φ5mm miniature heat exchange pipes, connecting pipes and joints. Through the synergistic effect of high-precision servo drive system (positioning accuracy ±0.02mm) and intelligent control algorithm, the system achieves 0.1mm-level assembly precision in key processes such as pipe expansion and girth welding, with a single-machine daily production capacity of over 800 pieces. This innovative equipment has been successfully applied in the production of compact heat exchangers for new energy vehicle thermal management systems and industrial refrigeration units, etc. Compared with traditional manual production lines, the assembly efficiency is improved by more than 300%, the product defect rate is reduced from 2.1% to below 0.3%, and the core competitiveness of enterprises is significantly improved.

[0003] The existing patent still has the following technical bottlenecks in the material pretreatment link: the pre-process relies on manual sorting: the connecting pipe and the joint need to be placed on a special material carrier after manual sorting, which restricts the overall production line automation rate. INVENTION CONTENTS

[0004] The purpose of the utility model is to provide a connecting pipe automatic feeding device for heat exchanger assembly machine, which solves the technical problem of low automation degree in the current heat exchanger assembly process, where the connecting pipe and the joint need to be placed on a special material carrier after manual sorting.

[0005] The utility model provides a connecting pipe automatic feeding device for heat exchanger assembly machine, which comprises: a feeding groove;

[0006] A spiral track is arranged in the feeding groove and rotates in the vertical direction. The track surface of the spiral track is in an inclined state in the vertical section, and the side close to the axis of the spiral track is higher than the side away from the axis.

[0007] An arc-shaped guide section is arranged at the end of the spiral track and has a certain overlapping area with the spiral track. The starting end of the arc-shaped guide section is lower than the end of the spiral track in height. The length of the arc-shaped guide section is 1 / 12 to 1 / 20 of the total length of the spiral track. The arc-shaped guide section includes an angle-set outer baffle and a bottom plate, and a position correction pipe is arranged between the outer baffle and the bottom plate. The position correction pipe is connected to the bottom plate.

[0008] An output track extends into the feeding groove, and a starting end of the output track is arranged below an end of the arc-shaped guiding section and close to an inner side of the arc-shaped guiding section;

[0009] A pushing assembly includes a pushing shaft and a pushing plate fixed to a circumference of the pushing shaft, and the pushing shaft is arranged at a joint of the arc-shaped guiding section and the output track;

[0010] A driving assembly is configured to drive the pushing plate to rotate around the pushing shaft, so as to push the connecting pipe in the spiral track to the output track;

[0011] A vibrating member is arranged in the feeding groove and provides horizontal and vertical vibration components.

[0012] According to one embodiment of the present application, a baffle plate is arranged on a side wall of the feeding groove, and the baffle plate is arranged in a vertical direction away from a track surface of the spiral track.

[0013] According to one embodiment of the present application, an inclination angle of the track surface of the spiral track is 5° to 15°.

[0014] According to one embodiment of the present application, after the heat exchanger connecting pipe passes through the arc-shaped guiding section, a pipe opening height of the heat exchanger connecting pipe is higher than a top height of the arc-shaped guiding section in a vertical direction, so as to smoothly enter the output track.

[0015] According to one embodiment of the present application, a visual positioning system is further included, which includes a camera and a ring-shaped light supplement lamp arranged above the feeding groove, and is configured to monitor a position and a posture of the connecting pipe in real time, so as to ensure accurate feeding.

[0016] According to one embodiment of the present application, limit plates are arranged on both sides of the output track, and the output track and the limit plates jointly form a transportation channel for maintaining a vertical posture of the heat exchanger connecting pipe.

[0017] According to one embodiment of the present application, the vibrating member includes one or more vibrating motors, and the vibrating motors are mounted on the spiral track and a bottom of the arc-shaped guiding section.

[0018] According to one embodiment of the present application, the driving assembly is connected with a supporting device, and the supporting device is fixedly connected to a foundation.

[0019] According to one embodiment of the present application, the baffle plate is an arc-shaped plate.

[0020] According to one embodiment of the present application, a width of the output track matches a pipe opening diameter of the connecting pipe, so as to transport the connecting pipe in a vertical posture with the pipe opening downward.

[0021] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0022] The utility model discloses a spiral track, arc guide section, output track and push subassembly etc. structure, realized the full -automatic conveying process of connecting pipe from initial position to final assembly position, eliminated the dependence on manual operation, greatly improved the overall automation rate of production line. The arc guide section is corrected by the position correction pipe and is guaranteed to be upward. Specifically, the baffle is arranged in the feeding groove, and the baffle is arranged in the vertical direction and is spaced apart from the spiral track, which can guide the vertical transportation of the connecting pipe during transportation, push it to the bottom and transport it in the next round. The connecting pipe transported on the spiral track is in a flat state (the pipe opening is directed to the spiral track axis or away from the axis). When the connecting pipe enters the arc guide section, the pipe opening is automatically adjusted to be upward due to the low height of the arc guide section starting end and the gravity of the connecting pipe. The space of the arc guide section is reduced due to the position correction pipe, and the connecting pipe is inclined to facilitate the push subassembly to push it into the output track. The output track starting end is arranged in the feeding groove, and the width of the output track matches the diameter of the connecting pipe. If the connecting pipe does not enter the output track, it will fall to the bottom of the feeding groove and be transported in the next round. The visual positioning system includes a camera and a ring-shaped light supplement lamp arranged above the feeding groove, which can monitor the position and posture of the connecting pipe in real time. This not only ensures that each connecting pipe can enter the output track in the best state, but also monitors and adjusts in time when problems are found, improving the accuracy of the entire assembly process. In the utility model, the automatic feeding device significantly shortens the preparation time of the connecting pipe, greatly improves the production efficiency compared with the traditional manual sorting and placing method. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 The whole structure schematic diagram of the automatic feeding device of connecting pipe for heat exchanger assembly machine provided by the utility model embodiment 1 is provided.

[0025] Figure 2 The relative position schematic diagram of the spiral track end, arc guide section, push subassembly and output track of the automatic feeding device of connecting pipe for heat exchanger assembly machine provided by the utility model embodiment 1 in the connecting pipe transportation process

[0026] Figure 3 The structure top view of the automatic connecting pipe feeding device for the heat exchanger assembling machine is provided in Embodiment 2 of the present application.

[0027] Icon:

[0028] 100, feeding groove; 110, baffle;

[0029] 200, spiral track;

[0030] 300, arc guide section; 310, outer baffle; 320, bottom plate; 330, position correction pipe;

[0031] 400, output track; 410, limiting plate;

[0032] 510, push plate;

[0033] 600, driving assembly;

[0034] 700, recovery groove;

[0035] 800, connecting pipe. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination 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.

[0037] Embodiment 1

[0038] The present application provides an automatic connecting pipe feeding device for a heat exchanger assembling machine, so as to realize automatic feeding.

[0039] Please refer to Figure 1 and Figure 2 The automatic connecting pipe feeding device for a heat exchanger assembling machine provided in the embodiments of the present application comprises: a feeding groove 100 for storing and transporting the connecting pipe 800 to be fed;

[0040] A spiral track 200 is arranged in the feeding groove 100 and rotates in the vertical direction. The track surface of the spiral track 200 is in an inclined state in the vertical section, so as to ensure that the connecting pipe 800 remains stable during the feeding process. The spiral track 200 is higher on the side close to the axis than on the side away from the axis.

[0041] The arc-shaped guiding section 300 is arranged at the end of the spiral track 200 and has a certain overlapping area with the spiral track 200. In the embodiment, the arc-shaped guiding section 300 is arranged inside the end of the spiral track 200. The starting end of the arc-shaped guiding section 300 is lower than the end of the spiral track 200. The gravity is used to automatically adjust the position of the connecting pipe 800 when the connecting pipe 800 enters the arc-shaped guiding section 300, so as to ensure that the pipe opening is upward. The length of the arc-shaped guiding section 300 is 1 / 12 to 1 / 20 of the total length of the spiral track 200, so as to ensure that the connecting pipe 800 has enough time to adjust the position. The arc-shaped guiding section 300 comprises an angle-shaped outer baffle 310 and a bottom plate 320. A position correcting pipe 330 is arranged between the outer baffle 310 and the bottom plate 320. The connecting pipe 800 is inclined to rely on the position correcting pipe 330, so as to further correct the position of the connecting pipe 800 and ensure that the pipe opening is upward. The position correcting pipe 330 is connected to the bottom plate 320. The position correcting pipe 330 further corrects the position of the connecting pipe 800 and ensures that the pipe opening is upward. When the connecting pipe 800 enters the arc-shaped guiding section 300, the starting end of the arc-shaped guiding section 300 is lower than the end of the spiral track 200. The connecting pipe 800 automatically adjusts the position under the action of gravity, so that the pipe opening is upward.

[0042] The output track 400 extends into the feeding groove 100. The starting end of the output track 400 is arranged below the end of the arc-shaped guiding section 300 and close to the inner side of the arc-shaped guiding section 300. The connecting pipe 800 keeps a vertical posture in the output track 400 and is transported to an assembly position.

[0043] The pushing assembly comprises a pushing shaft and a pushing plate 510 fixed to the circumference of the pushing shaft. The pushing shaft is arranged at the joint of the arc-shaped guiding section 300 and the output track 400. The pushing assembly pushes the connecting pipe 800 from the arc-shaped guiding section 300 to the output track 400.

[0044] The driving assembly 600 is used to drive the pushing plate 510 to rotate around the pushing shaft, so as to push the connecting pipe 800 in the spiral track 200 to the output track 400. In the embodiment, the driving assembly 600 is a driving motor.

[0045] The vibrating member is arranged in the feeding groove 100 and provides horizontal and vertical vibration components, so as to ensure the smooth transportation of the connecting pipe 800.

[0046] In the embodiment, the baffle 110 is arranged on the side wall of the feeding groove 100. The baffle 110 is arranged in the vertical direction and is spaced apart from the track surface of the spiral track 200.

[0047] In this embodiment, the track surface of the spiral track 200 has an inclination angle of 5° to 15°, which increases the stability during transportation and reduces the falling of the connecting pipe 800 during transportation.

[0048] In this embodiment, the height of the pipe opening of the heat exchanger connecting pipe 800 after passing through the arc-shaped guide section 300 is higher than the top height of the arc-shaped guide section 300 in the vertical direction, so as to smoothly enter the output track 400.

[0049] In this embodiment, a visual positioning system is also included, which contains a camera and a ring-shaped light supplement lamp arranged above the feeding groove 100, for real-time monitoring of the position and attitude of the connecting pipe 800, to ensure accurate feeding. The visual positioning system real-time monitors the position and attitude of the connecting pipe 800, to ensure accurate feeding. According to the feedback of the visual positioning system, the position correction pipe 330 can fine-tune its position and angle to adapt to connecting pipes 800 of different sizes and shapes. In this embodiment,

[0050] The camera is a high-resolution (more than 5 million pixels) and high-frame-rate (more than 60 fps) industrial camera, which can clearly capture the details of the connecting pipe 800 and capture the motion state of the connecting pipe 800 in real time. The camera is installed above the feeding groove 100, facing the junction of the spiral track 200 and the arc guide section 300, ensuring full coverage of the conveying path of the connecting pipe 800. The ring-shaped fill light uses an LED ring-shaped fill light to provide uniform and stable lighting conditions. The brightness of the fill light can be adjusted to adapt to different environmental lighting conditions, ensuring image quality. The fill light is installed around the camera lens to ensure that there is no shadow interference when the connecting pipe 800 is being photographed. It also includes a processor, which uses a high-performance embedded processor or an industrial computer, responsible for image processing and analysis, equipped with high-speed storage devices for storing image data and operation logs. The camera captures images through external trigger signals (connecting pipe 800 reaches the designated position), ensuring that key frames are captured. In high-speed motion situations, multi-frame synthesis technology is used to improve image clarity and detail performance. Gaussian filtering or median filtering algorithms are used to remove noise from images. Histogram equalization or adaptive contrast enhancement algorithms are used to improve image contrast, making it easier for subsequent analysis. Canny edge detection algorithm is used to extract the contour information of the connecting pipe 800. Harris corner detection or SIFT feature point detection algorithm is used to identify the key positions (pipe mouth or pipe body) of the connecting pipe 800. Template matching is performed by pre-establishing a connecting pipe 800 template to determine the position and attitude of the connecting pipe 800. Affine transformation or perspective transformation algorithm is used to calculate the rotation angle and offset of the connecting pipe 800. By setting an attitude threshold (inclination angle exceeding a predetermined value), the attitude anomaly of the connecting pipe 800 is detected. By setting a position tolerance (such as offset exceeding a predetermined value), the position offset of the connecting pipe 800 is detected. The visual positioning system feeds back the position and attitude information of the connecting pipe 800 to the control system in real time, which is used to adjust the parameters of the pushing assembly and the vibration member. When the attitude anomaly or position offset of the connecting pipe 800 is detected, the system automatically sends an alarm signal and records the abnormal data. According to the feedback of the visual positioning system, the vibration frequency, pushing force (rotation speed of the pushing plate 510), and other parameters are automatically adjusted to ensure smooth conveying of the connecting pipe 800.

[0051] In this embodiment, limit plates 410 are provided on both sides of the output track 400, and the output track 400 and the limit plates 410 together form a transportation channel for maintaining the vertical attitude of the heat exchanger connecting pipe 800. In this embodiment, the output track 400 includes a receiving section and a transportation section. The transportation section is provided with a limit plate 410, and the receiving section is arranged inside the end of the arc guide section 300. The receiving section and the end of the arc guide section 300 are parallel, and the receiving section is lower than the fixed guide section, so that the connecting pipe 800 located in the arc guide section 300 can enter the inside of the receiving section by the pushing action of the pushing assembly.

[0052] In the embodiment, the vibration member comprises one or more vibration motors, which are installed at the bottom of the spiral track 200 and the arc guide section 300, and in the embodiment, the output track 400 is provided with one or more vibration motors, and in the embodiment, the vibration motor can provide horizontal vibration component and vertical vibration component, so that the connecting pipe 800 is stably moved upwards along the spiral track 200, and helps the connecting pipe 800 to be uniformly distributed and smoothly moved on the spiral track 200.

[0053] In the embodiment, the driving assembly 600 is connected with a supporting device, and the supporting device is fixedly connected to the foundation, and in the embodiment, the supporting device comprises a supporting rod connected to the foundation.

[0054] In the embodiment, the baffle 110 is an arc-shaped plate, which can limit the height direction of the transported connecting pipe 800, and specifically, the height of the baffle 110 from the track surface of the spiral track 200 is higher than the height of the connecting pipe 800 in the horizontal position and lower than the height of the connecting pipe 800 in the vertical position, when the connecting pipe 800 is in the horizontal position, it can normally pass through the baffle 110, and when the connecting pipe 800 is in the vertical position, it is blocked by the baffle 110, so as to be pushed by the baffle 110 to fall back to the bottom of the feeding groove 100 for a new round of transportation.

[0055] In the embodiment, the width of the output track 400 matches the pipe opening diameter of the connecting pipe 800, so as to further ensure that the connecting pipe 800 is transported in the vertical position with the opening downward.

[0056] In the embodiment, according to the requirement of the production line, the transportation speed of the output track 400 is adjusted to ensure that the connecting pipe 800 can timely reach the assembly position, and in the embodiment, the output track 400 is a conveying belt.

[0057] The use process of the connecting pipe 800 automatic feeding device for the heat exchanger assembling machine in the embodiment of the utility model will be described in detail as follows:

[0058] The connecting pipe 800 to be conveyed is placed in the feeding groove 100 in batches, and the vibration member starts to work to provide horizontal and vertical vibration components to help the connecting pipe 800 to be uniformly distributed and smoothly moved on the spiral track 200. After the connecting pipe 800 enters the arc guide section 300, the height of the starting end of the arc guide section 300 is lower than the height of the end of the spiral track 200, and the connecting pipe 800 is automatically adjusted in position due to gravity, so that the pipe opening faces upward. The position correcting pipe 330 further corrects the orientation of the connecting pipe 800 to ensure that the pipe opening faces upward, and avoids the connecting pipe 800 from deviating during the conveying process. The driving assembly 600 drives the pushing plate 510 to rotate around the pushing shaft to push the connecting pipe 800 from the arc guide section 300 to the output track 400. Specifically, the connecting pipe 800 is transported with the pipe opening facing upward in the arc guide section 300 and leans on the position correcting pipe 330 in an inclined state. The pushing plate 510 pushes the pipe opening to make the connecting pipe 800 overturn to fall on the output track 400. After the connecting pipe 800 enters the output track 400, the width of the output track 400 and the limiting plate 410 are designed to ensure that the connecting pipe 800 maintains a vertical posture and is transported to the assembly position through the output track 400.

[0059] Embodiment 2

[0060] The utility model embodiment provides a kind of connecting pipe 800 automatic feeding device for heat exchanger assembly machine, to realize automatic feeding.

[0061] Please refer to Figure 3 The connecting pipe 800 automatic feeding device for heat exchanger assembly machine provided in the utility model embodiment 2 is only different from the embodiment 1 as follows:

[0062] In the embodiment, a recovery tank 700 is further provided below the end of the arc guide section 300. The accommodating cavity of the recovery tank 700 is communicated with the passage of the arc guide section 300, so that the connecting pipe 800 not entering the output track 400 can fall from the arc guide section 300 to the recovery tank 700 to be recycled and transported again.

[0063] The utility model embodiment has at least the following advantages:

[0064] The utility model discloses a spiral track, arc guide section, output track and push assembly etc. structure has realized the full -automatic conveying process of connecting pipe from initial position to final assembly position, has eliminated the dependence on manual operation, has improved the overall automation rate of production line greatly. The arc guide section is corrected by setting the position correction pipe to correct the orientation of the connecting pipe, and the pipe opening is ensured to be upward. Specifically, baffles are provided in the feeding groove. The baffles are spaced apart from the spiral track in the vertical direction and can guide the vertically transported connecting pipe during transportation, push it to the bottom and perform a new round of transportation. The connecting pipe transported on the spiral track is in a flat state (the pipe opening is directed to the spiral track axis or away from the axis). When the connecting pipe enters the arc guide section, it is automatically adjusted to make the pipe opening upward due to the low height of the arc guide section starting end and the gravity of the connecting pipe when moving to the arc guide end. The existence of the position correction pipe reduces the space of the arc guide section, and the connecting pipe is inclined to facilitate the subsequent push assembly to push it into the output track. Since the starting end of the output track is provided in the feeding groove, and the width of the output track matches the diameter of the connecting pipe opening, if the connecting pipe does not enter the output track, it will fall to the bottom of the feeding groove and be transported again. The visual positioning system includes a camera and a ring-shaped fill light provided above the feeding groove, which can monitor the position and attitude of the connecting pipe in real time. This not only ensures that each connecting pipe can enter the output track in the best state, but also can monitor and adjust in time when problems are found, improving the precision of the entire assembly process. In the utility model, the automatic feeding device significantly shortens the preparation time of the connecting pipe, greatly improves the production efficiency compared with the traditional manual sorting and placing method.

[0065] The above is only the preferred embodiment of the utility model and does not limit the utility model. For those skilled in the art, the utility model can be changed and varied. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A connecting pipe automatic feeding device for a heat exchanger assembly machine, characterized by, The application relates to a feeding device for heat exchanger connecting pipes, which comprises the following parts: a feeding groove; a spiral track arranged in the feeding groove and rotating in the vertical direction, the track surface of the spiral track being in an inclined state in the vertical section, the spiral track being higher on the side close to the axis than on the side far from the axis; an arc-shaped guiding section arranged at the end of the spiral track and having a certain overlapping area with the spiral track, the starting end of the arc-shaped guiding section being lower than the end of the spiral track, the length of the arc-shaped guiding section being 1 / 12 to 1 / 20 of the total length of the spiral track, the arc-shaped guiding section comprising an angle-shaped outer baffle and a bottom plate, and a position correcting pipe being arranged between the outer baffle and the bottom plate and connected to the bottom plate; an output track extending into the feeding groove, the starting end of the output track being arranged below the end of the arc-shaped guiding section and close to the inner side of the arc-shaped guiding section; a pushing assembly comprising a pushing shaft and a pushing plate fixed to the periphery of the pushing shaft, the pushing shaft being arranged at the joint of the arc-shaped guiding section and the output track; a driving assembly for driving the pushing plate to rotate around the pushing shaft so as to push the connecting pipe in the spiral track to the output track; a vibrating part arranged in the feeding groove and providing horizontal and vertical vibration components.

2. The heat exchanger assembly connection pipe automatic feeding device according to claim 1, wherein A baffle is arranged on the side wall of the feeding groove, and the baffle is arranged in the vertical direction away from the track surface of the spiral track.

3. The heat exchanger assembly connection tube automatic feeding device according to claim 1, wherein The inclination angle of the track surface of the spiral track is 5-15 degrees.

4. The heat exchanger assembly connection tube automatic feeding device according to claim 1, wherein After the heat exchanger connecting pipe passes through the arc-shaped guiding section, the height of the pipe opening of the heat exchanger connecting pipe is higher than the top height of the arc-shaped guiding section in the vertical direction, so that the heat exchanger connecting pipe can smoothly enter the output track.

5. The heat exchanger assembly connection tube automatic feeding device according to claim 1, wherein A visual positioning system is further arranged, which comprises a camera and a ring-shaped light supplementing lamp arranged above the feeding groove, and is used for monitoring the position and posture of the connecting pipe in real time and ensuring accurate feeding.

6. The heat exchanger assembly connection tube automatic feeding device according to claim 1, wherein Limiting plates are arranged on both sides of the output track, and the output track and the limiting plates jointly form a conveying channel for keeping the vertical posture of the heat exchanger connecting pipe.

7. The heat exchanger assembly connection tube automatic feeding device according to claim 1, wherein The vibrating part comprises one or more vibrating motors, and the vibrating motors are mounted on the bottom of the spiral track and the arc-shaped guiding section.

8. The heat exchanger assembly connection tube automatic feeding device according to claim 1, wherein The driving assembly is connected with a supporting device, and the supporting device is fixedly connected to the foundation.

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