An automatic blockage detection tool and an assembly device of a pipeline formed thereby

Abstract

The utility model provides a kind of automatic detection blocking tool and the assembly device of pipeline piece formed by it, automatic detection blocking tool includes fixed part, probe, driving part and detection part, wherein fixed part is used to fix the fixed part of pipeline piece;Probe is located in the side of the pipeline piece, and with the center line of the pipeline piece coincides, driving part is connected to the probe, and can drive the probe moves towards the direction of approaching or away from the pipeline piece;The side of probe is provided with detection part, and the end of probe away from the pipeline piece is provided with detection position;Detection part is used to detect whether the detection position reaches the detection part position during the movement of probe. The present application can realize the automatic detection of pipeline piece plugging, ensure that the distance of plugging detection is the same when deep into the inside of pipeline piece, avoid the mistake and miss phenomenon caused by undetected.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe fitting blockage detection, and in particular to an automatic blockage detection fixture and an assembly device for the pipe fittings formed therefrom. Background Technology

[0002] Air conditioning pipe fittings need to be used with type A pipe fittings. The pipe fittings and pipe fittings need to be joined by wire feeding welding. During the automatic wire feeding welding process, due to the instability of the welding process, weld blockage may occur. Once the weld filler blocks the pipe fitting, the refrigerant flow will be affected during the operation of the air conditioning system, resulting in unqualified air conditioning performance. In order to avoid such quality abnormalities, a lot of manpower needs to be invested in the on-site production process to repeatedly grab the pipe fittings for blockage detection.

[0003] The existing process for manually inspecting pipe fittings for plugging includes: employees removing welded pipe fittings sequentially from the assembly line, aligning the fittings, and then inserting a plugging probe into each fitting's through-hole. Qualified fittings are placed in the nut-fixing slot, while unqualified fittings are removed separately and placed in the unqualified product storage area. This plugging inspection method has the following problems:

[0004] 1. Low efficiency in detecting blockages; on average, each pipe fitting requires 8 seconds to inspect.

[0005] 2. Employees manually inspect and plug multiple pipe fittings by hand. Since the number of pipe fittings to be inspected and plugged at one time is large, it is easy to miss some.

[0006] 3. When using a needle for manual plugging, the plugging depth cannot be guaranteed, and insufficient insertion depth of the needle may lead to plugging failure.

[0007] 4. During frequent handling of pipe fittings, quality problems such as squeezing, bumping, and scratches can easily occur;

[0008] 5. Prolonged operation causes employees' hands to become sore, swollen, and pale, making it difficult for them to perform their jobs due to the high labor intensity, resulting in low production efficiency. Utility Model Content

[0009] To overcome the problems existing in related technologies, one of the objectives of this utility model is to provide an automatic plugging detection fixture. By setting up a driving component and a probe, it can realize the automatic detection of pipe plugging. At the same time, the driving component drives the probe to move the same distance, ensuring that the distance penetrated into the pipe during plugging detection is the same, avoiding errors caused by incomplete detection. This application determines whether the pipe is plugged by whether the detection component can detect the placement position. The judgment method is efficient and fast, improving the efficiency and accuracy of plugging detection.

[0010] An automatic plugging detection fixture is used to detect whether pipeline components are blocked. The automatic plugging detection fixture includes:

[0011] Fasteners used to secure pipe fittings;

[0012] A probe is located on one side of the pipe fitting and coincides with the center line of the pipe fitting; a detection position is provided at the end of the probe away from the pipe fitting;

[0013] A drive unit connected to the probe; the drive unit is capable of moving the probe toward or away from the conduit;

[0014] A detection element located on the side of the probe is used to detect whether the detection position reaches the position of the detection element during the movement of the probe.

[0015] In a preferred embodiment of this invention, the fixing member includes a slot, the shape of which is adapted to the shape of the pipeline component.

[0016] In this application, the fastener is used to secure the pipe fitting. In actual operation, the slot can be made of flexible material, and the inner diameter of the slot is slightly smaller than the outer diameter of the pipe fitting. When the pipe fitting is placed inside the slot, the squeezing force of the slot on the pipe fitting can secure it. The slot in this application can also be configured to fit the shape of the pipe fitting. Clamping fasteners are provided above or on the side of the slot. When the pipe fitting is placed inside the slot, the clamping fasteners secure it, ensuring that the pipe fitting is fixed inside the slot. This prevents the pipe fitting from shifting during the sealing test, improving the accuracy of the sealing test.

[0017] In a preferred embodiment of this invention, a sensor for detecting whether a pipeline component is in place is provided in the slot, and the sensor is electrically connected to the drive component.

[0018] In this application, the sensor can specifically be a photoelectric sensor. When a pipe component is placed inside the slot, the photoelectric sensor detects that the pipe component is in place and sends an arrival signal to the driving component. The driving component then drives the probe to extend into the pipe component through the detection hole to achieve sealing detection of the pipe component. In this application, the sensor is also electrically connected to a clamping and fixing component. When the photoelectric sensor detects that the pipe component is in place, it sends an arrival signal to the clamping and fixing component, which then presses down to limit and fix the pipe component. By setting a sensor in the slot and electrically connecting the sensor to the driving component and the clamping and fixing component, this application can achieve automatic fixing and automatic detection of pipe components. Only the pipe component needs to be placed to automate subsequent processes, improving the automation level of pipe component detection and thus increasing the efficiency of pipe component detection.

[0019] In a preferred embodiment of this invention, the fixing member is provided with a detection hole, the center line of which coincides with the center line of the pipeline component; the inner diameter of the detection hole is less than or equal to the inner diameter of the pipeline component.

[0020] In this application, the outer diameter of the probe is smaller than the inner diameter of the detection hole, and the inner diameter of the detection hole is less than or equal to the inner diameter of the pipe fitting. This ensures that the probe can enter the interior of the pipe fitting through the detection hole. In this application, the detection hole is integrated into a fixing component, and the fixing component is a detachable and replaceable structure. Specifically, different fixing components are provided with slots and detection holes of different sizes to adapt to different types of pipe fittings.

[0021] In a preferred embodiment of this invention, the automatic blockage detection fixture further includes a slider and a slide rail, with the two ends of the slider connected to the driving component and the probe, respectively; the slider is slidably connected to the slide rail.

[0022] This application allows the slider to be positioned between the probe and the drive component, with the two ends of the slider connected to the drive component and the probe respectively, ensuring that the drive component synchronously moves the slider and the probe. Since the slider is located inside the slide rail, and the slide rail extends parallel to the centerline of the pipeline component, when the drive component moves the slider, the slide rail's limiting mechanism ensures that the probe's movement direction always coincides with the centerline of the pipeline component.

[0023] In a preferred embodiment of this invention, an elastic element is provided between the driving element and the slider, and the two ends of the elastic element are respectively connected to the driving element and the slider.

[0024] In this application, the driving component can be a driving cylinder. An elastic element is provided between the driving cylinder and the slider to ensure that when the pipeline is blocked, since the extension length of the driving cylinder is fixed, the obstacle inside the pipeline will block the probe from advancing further. That is, the reaction of the obstacle on the probe compresses the elastic element, avoiding rigid contact between the probe and the obstacle, which would cause the probe to break and be damaged.

[0025] In a preferred embodiment of this invention, the detection element includes a sensor, which is located on the side of the probe.

[0026] The probe has a collar at its detection position; when the probe enters the pipe fitting and penetrates a preset distance, the sensor detects the collar.

[0027] In this application, the collar is a ring-shaped structure fitted around the outside of the probe. The sensor can specifically be a distance sensor. When the collar is not flush with the distance sensor, the distance sensor cannot detect the probe's approach. When the collar moves to be flush with the distance sensor, the distance sensor can detect the collar. Thus, when the distance sensor detects the collar, it indicates that the probe has penetrated the pipe to a preset distance, meaning the pipe is not blocked. When the drive unit extends and the distance sensor does not detect the collar, it indicates that the probe is obstructed and cannot penetrate to the preset distance in the pipe, meaning the pipe is blocked. This application, through the cooperation of the distance sensor and the collar, enables rapid and efficient detection of the probe's movement distance, improving the efficiency and accuracy of pipe blockage detection.

[0028] In a preferred embodiment of this invention, the detection element further includes an alarm, which is electrically connected to the sensor.

[0029] During the blockage detection process, if the drive unit operates and the sensor detects the detection position, it indicates that the pipeline component is not blocked, and no alarm is needed. If the drive unit operates but the sensor does not detect the detection position, it indicates that the pipeline component is blocked. The sensor will then send the detection result to the alarm, which will trigger an audible and visual alarm, reminding staff to classify the current pipeline component as unblocked. By adding alarms, it is possible to ensure that unblocked pipeline components can pass normally, while blocked pipeline components can be promptly addressed through alarms.

[0030] In a preferred embodiment of this invention, the automatic plugging detection fixture further includes a base plate, and the fixing component and the driving component are located on the upper surface of the base plate; and the fixing component is detachably connected to the base plate.

[0031] In this application, the base plate serves as the support platform for the entire tooling. Different fasteners have inspection holes and slots of different sizes. By replacing the fasteners, adaptable inspection of pipe fittings of different sizes can be achieved. This application features a detachable connection between the fasteners and the base plate, which improves the efficiency of fastener replacement and expands the applicability of this tooling.

[0032] The second objective of this application is to provide an assembly device for pipe fittings, including a screw-driving device and an automatic plug-in inspection fixture as described above. Pipe fittings that pass the inspection by the automatic plug-in inspection fixture are then assembled by the screw-driving device, which can achieve efficient coordination between the plug-in inspection process and the installation process, thereby improving the production efficiency of pipe components in the refrigeration industry.

[0033] The beneficial effects of this utility model are as follows:

[0034] This utility model provides an automatic shaft blockage detection fixture for detecting whether a pipeline component is blocked. The automatic blockage detection fixture includes a fixing component, a probe, a driving component, and a detection component. The fixing component is used to fix the pipeline component. The probe is located on one side of the pipeline component and coincides with the center line of the pipeline component. The driving component is connected to the probe and can drive the probe to move in a direction closer to or away from the pipeline component. A detection component is provided on the side of the probe, and a detection position is provided at the end of the probe away from the pipeline component. The detection component is used to detect whether the detection position reaches the position of the detection component during the movement of the probe. During plugging detection, the pipe fitting is first placed inside the slot. The drive unit moves the probe deep into the pipe fitting. If the pipe fitting is not plugged, the drive unit will move the probe to a preset position inside the pipe fitting. At this point, the probe's placement position is exactly level with the detection component. If the detection component detects the placement position, it indicates that the pipe fitting is not plugged. If the pipe fitting is plugged, the drive unit cannot move the probe to the preset position inside the pipe fitting. In this case, the detection component cannot detect the probe's placement position, indicating that the pipe fitting is plugged. This application, through the setting of the drive unit and probe, can achieve automatic detection of pipe fitting plugging. At the same time, the drive unit moves the probe the same distance, ensuring that the distance penetrated into the pipe fitting is the same during plugging detection, avoiding errors caused by incomplete detection. This application determines whether the pipe fitting is plugged by whether the detection component can detect the placement position. The determination method is efficient and fast, improving the efficiency and accuracy of plugging detection.

[0035] This application also provides an assembly device for pipe fittings, including a screw-driving device and an automatic plug-in inspection fixture as described above. Pipe fittings that pass the inspection by the automatic plug-in inspection fixture are then assembled by the screw-driving device, which can achieve efficient coordination between the plug-in inspection process and the installation process, thereby improving the production efficiency of pipe components in the refrigeration industry. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the automatic blockage detection tool in the embodiments of this application;

[0037] Figure 2 This is a top view of the automatic plug detection fixture in the embodiments of this application;

[0038] Figure 3 This is a side view of the automatic plug detection fixture in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram of the structure of the fastener in the embodiments of this application;

[0040] Figure label:

[0041] 11. Base plate; 12. Probe; 13. Slider; 14. Slide rail; 15. Drive component; 16. Collar; 18. Detection hole; 19. Slot; 21. Column; 22. Mounting plate. Detailed Implementation

[0042] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0043] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0044] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] Example 1

[0046] like Figures 1-4 As shown, this application provides an automatic plugging detection fixture for detecting whether pipeline components are blocked. The automatic plugging detection fixture includes:

[0047] Fasteners used to secure pipe fittings;

[0048] The probe 12 is located on one side of the pipeline component and coincides with the center line of the pipeline component; a detection position is provided at the end of the probe 12 away from the pipeline component;

[0049] A drive unit 15 is connected to the probe 12; the drive unit 15 is capable of driving the probe 12 to move in a direction closer to or farther from the probe 12;

[0050] A detection element located on the side of the probe 12 is used to detect whether the detection position reaches the position of the detection element during the movement of the probe 12.

[0051] The pipe fittings described in this application refer to pipe fittings that have been welded to pipe fittings or have undergone other processing techniques. When pipe fittings and pipe fittings are welded together, welding fluid may enter the interior of the pipe fitting, causing blockage. The purpose of this application is to confirm whether pipe fittings have become blocked after welding or other processing operations, and to remove blocked pipe fittings.

[0052] The fastener described in this application is provided with a detection hole (18), the center line of which coincides with the center line of the pipeline component; the inner diameter of the probe 12 is slightly smaller than the inner diameter of the pipeline component, and the probe 12 is driven by the drive component 15 to penetrate into the pipeline component through the detection hole 18. The position of the detection position in the probe 12 is fixed, and the position of the detection component is also fixed; if the detection position moves to be flush with the detection component, it means that the distance of the probe 12 penetrating into the pipeline component is a preset distance. The specific value of the preset distance can be defined by setting the positional relationship between the detection position and the detection component, and the preset distance refers to the distance from the end of the pipeline component to the inside where it is necessary to detect whether it is blocked. For example, in a pipeline component after welding, the welding position is 20mm away from the end. During the blocking detection process, by setting the position of the detection component, it is ensured that when the probe 12 penetrates into the pipeline component to a position of 20mm, the distance between the detection position and the detection component is flush, thus avoiding the missed detection phenomenon caused by insufficient penetration distance in the prior art.

[0053] In this application, the detection position and the detection element are mutually compatible. For example, a signal transmitter can be set in the detection element, and a signal receiver can be set in the detection position. When the two are aligned, the detection element can receive the signal in the detection position. When the two are misaligned, the detection element cannot receive the signal in the detection position. Based on whether the detection element can receive the signal, it is determined whether the probe 12 has penetrated to the preset position.

[0054] In this application, during the sealing test, the pipe component is first placed inside the slot 19. The drive unit 15 drives the probe 12 through the detection hole 18 to penetrate into the pipe component. If the pipe component is not blocked, the drive unit 15 can drive the probe 12 to a preset position inside the pipe component. At this time, the placement position of the probe 12 is exactly moved to a position flush with the detection unit. If the detection unit detects the placement position, it indicates that the pipe component is not blocked. If the pipe component is blocked, the drive unit 15 cannot drive the probe 12 to the preset position inside the pipe component. At this time, the detection unit cannot detect the placement position of the probe 12, indicating that the pipe component is blocked.

[0055] This application enables automatic detection of pipe component blockage by setting up the drive unit 15 and the probe 12. At the same time, the drive unit 15 drives the probe 12 to move the same distance, ensuring that the distance penetrated into the pipe component during blockage detection is the same, avoiding errors caused by incomplete detection. This application determines whether the pipe component is blocked by whether the detection unit can detect the placement position. The judgment method is efficient and fast, improving the efficiency and accuracy of blockage detection.

[0056] Example 2

[0057] like Figures 1-4 As shown, this application provides an automatic plugging detection fixture for detecting whether pipeline components are blocked. The automatic plugging detection fixture includes:

[0058] A fastener for fixing pipe fittings, wherein the fastener is provided with a detection hole 18, the center line of the detection hole 18 coincides with the center line of the pipe fitting;

[0059] The probe 12 is located on one side of the pipeline component and coincides with the center line of the pipeline component; a detection position is provided at the end of the probe 12 away from the pipeline component;

[0060] A drive unit 15 is connected to the probe 12; the drive unit 15 can drive the probe 12 to move in a direction closer to or away from the pipeline component;

[0061] A detection element located on the side of the probe 12 is used to detect whether the detection position reaches the position of the detection element during the movement of the probe 12.

[0062] Furthermore, the fastener includes a slot 19, the shape of which is adapted to the shape of the pipeline component.

[0063] In this application, the fastener is used to secure the pipe fitting. In actual operation, the slot 19 can be made of flexible material, and the inner diameter of the slot 19 is slightly smaller than the outer diameter of the pipe fitting. When the pipe fitting is placed inside the slot 19, the squeezing force of the slot 19 on the pipe fitting can secure it. The slot 19 can also be configured to fit the shape of the pipe fitting. Clamping fasteners are provided above or on the side of the slot 19. When the pipe fitting is placed inside the slot 19, the clamping fasteners secure it, ensuring that the pipe fitting is fixed inside the slot 19. This prevents the pipe fitting from shifting during the sealing test, improving the accuracy of the sealing test.

[0064] Furthermore, a sensor for detecting whether the pipeline component is in place is provided in the slot 19, and the sensor is electrically connected to the drive component 15.

[0065] In this application, the sensor can specifically be a photoelectric sensor. When a pipe component is placed inside the slot 19, the photoelectric sensor detects that the pipe component is in place and sends an arrival signal to the drive component 15. The drive component 15 drives the probe 12 to extend into the pipe component through the detection hole 18 to achieve the sealing detection of the pipe component. In this application, the sensor is also electrically connected to the clamping and fixing component. When the photoelectric sensor detects that the pipe component is in place, it sends an arrival signal to the clamping and fixing component, and the clamping and fixing component presses down to achieve the limiting and fixing of the pipe component. By setting a sensor in the slot 19 and electrically connecting the sensor to the drive component 15 and the clamping and fixing component, this application can realize the automatic fixing and automatic detection of pipe components. Only the pipe component needs to be placed to realize the automation of subsequent processes, improving the automation level of pipe component detection and thus improving the efficiency of pipe component detection.

[0066] Furthermore, the inner diameter of the detection hole 18 is less than or equal to the inner diameter of the pipe fitting.

[0067] In this application, the outer diameter of the probe 12 is smaller than the inner diameter of the detection hole 18, and the inner diameter of the detection hole 18 is less than or equal to the inner diameter of the pipe fitting. This ensures that the probe 12 can enter the interior of the pipe fitting through the detection hole 18. In this application, the detection hole 18 is integrated into a fixing component, and the fixing component is a detachable and replaceable structure. Specifically, different fixing components have different sized slots 19 and detection holes 18 to adapt to different types of pipe fittings. When the inner diameter of the pipe fitting is 6mm or 8mm, different fixing component models are used. Similarly, in this application, the probe 12 can also be configured as a detachable and replaceable structure. Different probes 12 have different outer diameters, and when the inner diameter of the pipe fitting is different, the probe 12 can be replaced synchronously, ensuring that the outer diameter of the probe 12 is slightly smaller than the inner diameter of the pipe fitting. If the difference between the outer diameter of the probe 12 and the inner diameter of the pipe fitting is large, the probe 12 may not be able to reach the inner edge of the pipe fitting during insertion, resulting in missed detection of local blockages.

[0068] Furthermore, the automatic blockage detection fixture also includes a slider 13 and a slide rail 14. The two ends of the slider 13 are respectively connected to the drive component 15 and the probe 12; the slider 13 is slidably connected to the slide rail 14.

[0069] This application allows the slider 13 to be positioned between the probe 12 and the drive member 15, meaning that both ends of the slider 13 are connected to the drive member 15 and the probe 12 respectively, ensuring that the drive member 15 synchronously drives the slider 13 and the probe 12 to move. Since the slider 13 is located inside the slide rail 14, and the extension direction of the slide rail 14 is parallel to the centerline of the pipeline component, when the drive member 15 drives the slider 13 to move, the limiting effect of the slide rail 14 ensures that the movement direction of the probe 12 always coincides with the centerline of the pipeline component.

[0070] Simultaneously, this application can also have the probe 12 penetrate the slider 13, and the probe 12 and the slider 13 are fixedly connected. That is, one end of the probe 12 is close to the detection hole 18, and the other end is connected to the driving member 15. At the same time, the middle position of the probe 12 penetrates the slider 13 and is fixedly connected to the slider 13. When the driving member 15 drives the probe 12 to move, the slider 13 moves synchronously. Since the slider 13 is located inside the slide rail 14, and the extension direction of the slide rail 14 is parallel to the center line direction of the pipeline component, when the driving member 15 drives the probe 12 to move, the slider 13 moves along the slide rail 14 to guide and limit the movement direction of the probe 12, ensuring that the movement direction of the probe 12 always coincides with the center line of the pipeline component.

[0071] Furthermore, an elastic element is provided between the driving member 15 and the slider 13, and the two ends of the elastic element are respectively connected to the driving member 15 and the slider 13.

[0072] In this application, the driving component 15 can be a driving cylinder. An elastic element is provided between the driving cylinder and the slider 13 to ensure that when the pipeline is blocked, since the extension length of the driving cylinder is fixed, the obstacle inside the pipeline will block the probe 12 from advancing further. That is, the reaction of the obstacle on the probe 12 compresses the elastic element, avoiding the rigid contact between the probe 12 and the obstacle, which would cause the probe 12 to break and be damaged.

[0073] When the pipeline is blocked, the probe 12 cannot continue to penetrate into the pipeline due to the obstruction. At this time, the detection position cannot be flush with the detection part, the extension length of the drive cylinder is fixed, and the elastic element is compressed.

[0074] Furthermore, the detection element includes a sensor located on the side of the probe 12; a collar 16 is provided at the detection position of the probe 12; when the probe 12 enters the pipeline and penetrates a preset distance, the sensor detects the collar 16.

[0075] In this application, the collar 16 is a ring-shaped structure fitted around the outside of the probe 12. Specifically, the sensor can be a distance sensor. The outer diameter of the probe 12 plus the collar 16 is larger than the individual outer diameter of the probe 12. The distance between the collar 16 and the distance sensor is within the detection range of the distance sensor, while the distance between the probe 12 and the distance sensor is outside the detection range of the distance sensor. That is, when the collar 16 is not flush with the distance sensor, the distance sensor cannot detect the approach of the probe 12. When the collar 16 moves to be flush with the distance sensor, the distance sensor can detect the collar 16. Thus, when the distance sensor detects the collar 16, it indicates that the probe 12 has penetrated into the pipe to a preset distance, meaning the pipe is not blocked. When the drive unit 15 extends and the distance sensor does not detect the collar 16, it indicates that the probe 12 is obstructed and cannot penetrate to the preset distance in the pipe, meaning the pipe is blocked. This application, through the cooperation of a distance sensor and a collar 16, enables rapid and efficient detection of the movement distance of the probe 12, thereby improving the efficiency and accuracy of pipeline component blockage detection.

[0076] Furthermore, the detection device also includes an alarm, which is electrically connected to the sensor.

[0077] During the blockage detection process, when the drive unit 15 is running and the sensor detects the detection position, it indicates that the pipeline component is not blocked, and no alarm is needed. When the drive unit 15 is running but the sensor does not detect the detection position, it indicates that the pipeline component is blocked. The sensor will send the detection result to the alarm, which will trigger an audible and visual alarm, reminding staff to classify the current pipeline component as unblocked. By adding an alarm, it can be ensured that unblocked pipeline components can pass normally, and blocked pipeline components can be promptly alerted and addressed.

[0078] Furthermore, the automatic plugging detection fixture also includes a base plate 11, and the fixing component and the driving component 15 are located on the upper surface of the base plate 11; and the fixing component is detachably connected to the base plate 11.

[0079] In this application, the base plate 11 serves as the support platform for the entire tooling. Different fasteners have inspection holes 18 and slots 19 of different sizes. By replacing the fasteners, it is possible to adapt and inspect pipe fittings of different sizes. This application provides a detachable connection between the fasteners and the base plate 11, which improves the efficiency of fastener replacement and expands the applicability of the tooling.

[0080] Example 2

[0081] like Figures 1-4As shown, this application provides an automatic plugging detection fixture for detecting whether pipeline components are blocked. The automatic plugging detection fixture includes a base plate 11, a fixing component, a probe 12, a driving component 15, a detection component, a slide rail 14, and a slider 13. The fixing component, the driving component 15, and the slide rail 14 are disposed on the upper surface of the base plate 11. The driving component 15 is specifically a driving cylinder.

[0082] The fastener of this application is provided with a detection hole 18, the center line of which coincides with the center line of the pipeline component; the inner diameter of the detection hole 18 is less than or equal to the inner diameter of the pipeline component.

[0083] The specific slot 19 is made of flexible material, and the inner diameter of the slot 19 is slightly smaller than the outer diameter of the pipe fitting. When the pipe fitting is placed inside the slot 19, the squeezing force of the slot 19 on the pipe fitting can fix the pipe fitting.

[0084] A photoelectric sensor is installed in the card slot 19, and the photoelectric sensor is electrically connected to the drive unit 15. When the photoelectric sensor detects that a pipe component is placed in the card slot 19, it sends a positioning signal to the drive unit 15.

[0085] Different fasteners are equipped with slots 19 and inspection holes 18 of varying sizes to accommodate different types of pipe fittings. Different fastener models are used when the inner diameter of the pipe fitting is 6mm or 8mm. In this application, the fasteners include a column 21 and a mounting plate 22. The column 21 is fixed in the base plate 11, and the mounting plate 22 is detachably mounted on top of the column 21. The mounting plate 22 integrates components such as the slots 19 and inspection holes 18. When the fastener needs to be replaced, the mounting plate 22 and its entire structure above it are disassembled and replaced. By replacing the fasteners, compatibility testing of pipe fittings of different sizes can be achieved. The detachable connection between the fasteners and the base plate 11 in this application improves the efficiency of fastener replacement and expands the applicability of the tooling.

[0086] In this application, probe 12 is located on one side of the pipeline component and coincides with the centerline of the pipeline component; the end of probe 12 away from the pipeline component is connected to the output end of the driving cylinder, and a collar 16 is sleeved in the middle of probe 12; the outer diameter of probe 12 is smaller than the inner diameter of detection hole 18. A slide rail 14 is provided between the fixing component and the driving component 15. Probe 12 is fixedly connected to slider 13, that is, one end of probe 12 is close to detection hole 18, the other end is connected to driving component 15, and the middle position of probe 12 passes through slider 13 and is fixedly connected to slider 13; when driving component 15 drives probe 12 to move, slider 13 moves synchronously. Since slider 13 is located inside slide rail 14, and the extension direction of slide rail 14 is parallel to the centerline of pipeline component, when driving component 15 drives probe 12 to move, slider 13 moves along slide rail 14 to guide and limit the movement direction of probe 12, ensuring that the movement direction of probe 12 always coincides with the centerline of pipeline component.

[0087] In this application, the probe 12 can also be configured as a detachable and replaceable structure. Different probes 12 have different outer diameters. When the inner diameter of the pipe fittings is different, the probes 12 can also be replaced synchronously. It is necessary to ensure that the outer diameter of the probe 12 is slightly smaller than the inner diameter of the pipe fitting. If the outer diameter of the probe 12 differs greatly from the inner diameter of the pipe fitting, the probe 12 will not be able to reach the inner edge of the pipe fitting during insertion, resulting in missed detection of local blockage.

[0088] An elastic element is provided between the drive cylinder and the probe 12. Since the extension length of the drive cylinder is fixed, when the pipeline is blocked, the obstacle inside the pipeline will prevent the probe 12 from advancing further. That is, the reaction of the obstacle on the probe 12 compresses the elastic element, avoiding rigid contact between the probe 12 and the obstacle, which would cause the probe 12 to break and be damaged.

[0089] The detection components in this application include a distance sensor and an alarm. The distance sensor is located on the side of the probe 12. A collar 16 is provided at the detection position of the probe 12. In this application, the collar 16 is a ring-shaped structure that is sleeved on the outside of the probe 12. When the collar 16 is not flush with the distance sensor, the distance sensor cannot detect the approach of the probe 12. When the collar 16 moves to be flush with the distance sensor, the distance sensor can detect the collar 16. The alarm is electrically connected to the distance sensor.

[0090] When it is necessary to detect the blockage of the pipeline component, the pipeline component is first placed inside the slot 19. The photoelectric sensor detects that the pipeline component is in place and sends the position signal to the drive cylinder. The drive cylinder drives the probe 12 to extend into the pipeline component through the detection hole 18. When the drive component 15 extends and the distance sensor detects the collar 16, it means that the probe 12 has penetrated into the pipeline component to the preset distance, that is, the pipeline component is not blocked. At this time, the extension length of the drive cylinder is fixed, the elastic element is not compressed, and the distance sensor sends the position signal to the alarm. The alarm does not need to be triggered.

[0091] When the drive component 15 extends and the distance sensor does not detect the collar 16, it indicates that there is an obstruction in the pipeline. When the pipeline is blocked, the probe 12 cannot continue to penetrate into the pipeline due to the obstruction. At this time, the detection position cannot be flush with the detection component, the extension length of the drive cylinder is fixed, and the elastic element is compressed. The distance sensor sends a non-reaching signal to the alarm, and the alarm sounds.

[0092] This application enables automatic detection of pipe component blockage by setting up the drive unit 15 and the probe 12. At the same time, the drive unit 15 drives the probe 12 to move the same distance, ensuring that the distance penetrated into the pipe component during blockage detection is the same, avoiding errors caused by incomplete detection. This application determines whether the pipe component is blocked by whether the detection unit can detect the placement position. The judgment method is efficient and fast, improving the efficiency and accuracy of blockage detection.

[0093] Example 4

[0094] This embodiment provides an assembly device for pipe fittings, including a screw-driving machine and an automatic plug-in inspection fixture as described above. Pipe fittings that pass the inspection by the automatic plug-in inspection fixture are then assembled by the screw-driving machine, which can achieve efficient coordination between the plug-in inspection process and the installation process, thereby improving the production efficiency of pipe components in the refrigeration industry.

[0095] This application not only meets the testing requirements for air conditioning piping systems, but is also applicable to piping components in automotive air conditioning, refrigerators, and other refrigeration systems. The assembly device in this application can simultaneously install multiple sets of positioning and clamping devices, enabling one-time pipework robot inspection and nut tightening through adjustment. This results in more precise and efficient positioning, thereby improving the production efficiency of pipe components in the refrigeration industry.

[0096] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0097] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0098] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0099] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic plugging detection fixture for detecting whether pipeline components are blocked, characterized in that, The automatic plugging detection fixture includes: A fastener for fixing pipe fittings; the fastener is provided with a detection hole (18), the center line of the detection hole (18) coincides with the center line of the pipe fitting, and the inner diameter of the detection hole (18) is less than or equal to the inner diameter of the pipe fitting; the fastener is a detachable and replaceable structure, and different fasteners are provided with different sizes of slot detection holes (18) to adapt to different models of pipe fittings; The probe (12) is located on one side of the pipe fitting and coincides with the center line of the pipe fitting; a detection position is provided at the end of the probe (12) away from the pipe fitting; the outer diameter of the probe (12) is smaller than the inner diameter of the detection hole (18); A drive unit (15) is connected to the probe (12); the drive unit (15) is capable of moving the probe (12) toward or away from the pipeline component; A detection element is located on the side of the probe (12). The detection element is used to detect whether the detection position reaches the position of the detection element during the movement of the probe (12). The detection element includes a sensor located on the side of the probe (12). A collar (16) is provided on the detection position of the probe (12). When the probe (12) enters the interior of the pipeline and the depth is a preset distance, the sensor detects the collar (16). The preset distance refers to the distance from the end of the pipeline to the interior where it is necessary to detect whether it is blocked.

2. The automatic blockage detection fixture according to claim 1, characterized in that, The fastener includes a slot (19) whose shape is adapted to the shape of the pipe fitting.

3. The automatic blockage detection fixture according to claim 2, characterized in that, The slot (19) is equipped with a sensor for detecting whether the pipeline component is in place, and the sensor is electrically connected to the drive component (15).

4. The automatic blockage detection fixture according to claim 1, characterized in that, The automatic blockage detection fixture also includes a slider (13) and a slide rail (14). The two ends of the slider (13) are respectively connected to the drive (15) and the probe (12); the slider (13) is slidably connected to the slide rail (14).

5. An automatic blockage detection fixture according to claim 4, characterized in that, An elastic element is provided between the driving element (15) and the slider (13), and the two ends of the elastic element are respectively connected to the driving element (15) and the slider (13).

6. The automatic blockage detection fixture according to claim 1, characterized in that, The detection device also includes an alarm, which is electrically connected to the sensor.

7. The automatic blockage detection fixture according to claim 1, characterized in that, The automatic plugging detection fixture also includes a base plate (11), and the fixing component and the driving component (15) are located on the upper surface of the base plate (11).

8. An assembly device for pipe fittings, characterized in that, Includes a screw-driving device and an automatic plug-detection fixture as described in any one of claims 1-7.

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