A device for flushing, pressurizing, and flow calibration of internal flow channels in additively manufactured parts

Abstract

This utility model discloses a device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts, relating to the field of additive manufacturing post-processing technology. The device includes a housing, a media supply pipeline, and a media container. The bottom of the housing has a first through-hole and a media through-hole, and the housing is used to accommodate the part to be tested. One end of the media supply pipeline is connected to a media supply source, and the other end is used to connect to the flow channel of the part to be tested through the first through-hole. The media supply pipeline is equipped with a flow regulating valve and a flow pressure sensor. The media container is located below the housing and is used to receive the media falling through the media through-hole for flow calibration.

Description

Technical Field

[0001] This utility model relates to the field of additive manufacturing post-processing technology, specifically to a device for flushing, pressurizing and calibrating the flow channels of additive manufacturing parts. Background Technology

[0002] With the widespread application of additive manufacturing technology in high-end manufacturing fields such as aerospace, energy and power, and medical implants, the internal structure of metal parts is becoming increasingly complex. These parts often incorporate intricate flow channels such as micro-cooling channels, fuel delivery pipelines, or hydraulic control circuits. These flow channels are tiny and complex in shape, making them difficult to achieve with traditional processing methods. However, additive manufacturing technology can form these channels in a single step, greatly improving product integration and performance.

[0003] However, defects such as incomplete fusion, spheroidization, and powder residue are prone to occur during additive manufacturing, directly affecting the smoothness of internal flow channels and pressure resistance. Therefore, rigorous rinsing and cleaning, pressure testing, and flow characteristic calibration must be performed in the post-processing stage to ensure that product quality meets design requirements.

[0004] Currently, the industry commonly employs multiple testing steps to assess the performance of additively manufactured parts. For example, high-pressure washers are used to remove residual metal powder from the parts, followed by pressure sealing tests using pump systems, and flow meter devices are used to calibrate the fluid flow rate. However, these multiple testing steps require operators to move workpieces between different workstations and perform each test separately, resulting in low efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a device for flushing, pressurizing and calibrating the internal flow channels of additive manufacturing parts, thereby solving the problem of inconvenient performance testing of additive manufacturing parts and improving testing efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A device for flushing, pressurizing, and calibrating the flow channels of additively manufactured parts, comprising: The box has a first through hole and a medium through hole at the bottom, and the box is used to accommodate the parts to be tested. The medium supply pipeline has one end connected to the medium supply source and the other end used to connect the test flow channel of the component through the first through hole. The medium supply pipeline is equipped with a flow regulating valve and a flow pressure sensor. The medium container, located at the bottom of the housing, is used to receive the medium falling through the medium through-hole for flow rate calibration.

[0007] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device, the medium container includes a filter chamber and a storage chamber that are interconnected. The medium through hole is connected to the filter chamber through a pipeline. The filter chamber is used to receive and filter the medium and to pass the medium into the storage chamber for storage.

[0008] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device, the storage chamber is connected to the medium supply source through a pipeline, and is used to supply the filtered medium to the medium supply pipeline.

[0009] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurizing and flow calibration device, the additive manufacturing component internal flow channel flushing, pressurizing and flow calibration device further includes a protective shell, the inside of which forms a receiving cavity, the box body is disposed in the receiving cavity, the protective shell is disposed above the medium container, and a second medium through hole corresponding to the position of the medium through hole is opened at the bottom of the protective shell, the second medium through hole is used to allow the medium falling from the box body to pass through to the medium container.

[0010] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device, a funnel assembly is connected to the lower surface of the protective housing, and the outlet of the funnel assembly is connected to the medium container through a pipe.

[0011] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device, multiple connecting rods are fixed at the corners of the lower surface of the housing, and the lower ends of the connecting rods are connected to downward inclined guide plates, which are used to guide the medium falling from the housing to the medium container.

[0012] Optionally, the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device also includes an air cleaning chamber, which is connected to the housing and is equipped with an air blowing assembly for blowing air to dry the component.

[0013] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device, a flow divider is provided on the medium supply pipeline. The flow divider divides the medium supply pipeline into multiple branches, which are used to connect with the flow channel to be tested of the component through the pipeline.

[0014] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device, a hydraulic pump is also provided on the medium supply pipeline. The hydraulic pump is connected to the medium supply source and is used to provide power for the medium flow.

[0015] Optionally, in the above-mentioned additive manufacturing component internal flow channel flushing, pressurization and flow calibration device, a check valve, a mass flow meter, a solenoid valve and a timer are also provided on the medium supply pipeline. The medium supply source, check valve, flow regulating valve, mass flow meter, solenoid valve, timer and flow pressure sensor are sequentially arranged on the medium supply pipeline.

[0016] Compared with the prior art, the additive manufacturing component internal flow channel flushing, pressurization and flow calibration device provided in this application has a housing as the bearing structure for the component to be tested. The first through hole at the bottom of the housing is used to connect to the medium supply pipeline to input the medium, and the medium through hole is used to discharge the processed medium to the medium container below the housing. One end of the medium supply pipeline is connected to the medium supply source, and the other end is used to connect to the flow channel of the component to be tested. The flow regulating valve on the medium supply pipeline is used to control the medium flow rate, and the flow and pressure sensors are used to obtain the flow rate and pressure data of the medium. The medium container is located below the housing and receives the medium falling through the medium through hole to complete the flow calibration. During operation: For the internal flow channels of the component to be tested, the first flushing operation involves placing the component inside the chamber, keeping the flow channels unobstructed, and connecting the media supply line to one side of the flow channel through the first through-hole, with output from the other side of the flow channel, thus flushing the flow channels. Next, a pressure test is performed. The component to be tested is removed, and one end of its flow channel opening is sealed, leaving only the opening for connection to the media supply line. The component is then placed back into the chamber, and media is introduced. A stable pressure is established by adjusting the flow regulating valve, and a flow pressure sensor monitors pressure changes to verify the flow channel sealing performance, thus completing the pressure test. Afterwards, during flow calibration, the component to be tested is removed, and the seal on the flow channel opening is opened, allowing the media to enter from one side and exit from the other. The media falls through the media through-hole into the media container for collection. The collected media flow rate is compared with the measurement value of the flow sensor to achieve flow calibration. Therefore, by using the aforementioned additive manufacturing component internal flow channel flushing, pressurizing, and flow calibration device to perform flushing, pressurizing, and flow calibration operations, the repeated clamping and transfer of components caused by traditional multi-device testing is avoided, thus improving testing efficiency. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic front view of an additive manufacturing component internal flow channel flushing, pressurization and flow calibration device proposed in this embodiment of the utility model; Figure 2 This is a top view schematic diagram of an additive manufacturing component internal flow channel flushing, pressurization and flow calibration device proposed in this embodiment of the utility model; Figure 3 This is a side view schematic diagram of an additive manufacturing component internal flow channel flushing, pressurization and flow calibration device proposed in an embodiment of this utility model.

[0018] Reference numerals: 100 is the housing, 200 is the medium supply pipeline, 210 is the flow divider, 220 is the hydraulic pump, 230 is the check valve, 240 is the mass flow meter, 250 is the solenoid valve, 260 is the flow regulating valve, 270 is the flow and pressure sensor, 300 is the medium container, 310 is the filter chamber, 320 is the storage chamber, 400 is the protective shell, 500 is the funnel assembly, 600 is the guide plate, and 700 is the air cleaning chamber. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1 The additive manufacturing component internal flow channel flushing, pressurization, and flow calibration device provided in this embodiment includes: a housing 100, a medium supply pipeline 200, and a medium container 300; the bottom of the housing 100 is provided with a first through hole and a medium through hole, and the housing 100 is used to accommodate the component to be tested; one end of the medium supply pipeline 200 is connected to a medium supply source, and the other end is used to connect the component to be tested flow channel through the first through hole; a flow regulating valve 260 and a flow pressure sensor 270 are provided on the medium supply pipeline 200; the medium container 300 is located below the housing 100 and is used to receive the medium falling through the medium through hole for flow calibration.

[0025] For specific implementation details, please refer to: Figure 1In the additive manufacturing component internal flow channel flushing, pressurization and flow calibration device provided in this application, the housing 100 is a housing and bearing structure for the component to be tested. The first through hole at the bottom of the housing is used to connect the medium supply pipeline 200 to input the medium. The medium through hole is used to discharge the processed medium to the medium container 300 below the housing 100. One end of the medium supply pipeline 200 is connected to the medium supply source, and the other end is used to connect to the flow channel of the component to be tested. The flow regulating valve 260 installed on the medium supply pipeline 200 is used to control the medium flow rate, and the flow pressure sensor 270 is used to obtain the flow rate and pressure data of the medium. The medium container 300 is located below the housing 100 and receives the medium falling through the medium through hole to complete the flow calibration. During operation: For the internal flow channels of the component to be tested, the component to be tested is first placed in the housing 100 during the flushing operation, with the flow channels remaining open. The medium supply pipeline 200 is connected to one side of the flow channel through the first through hole, and outputs from the other side of the flow channel to achieve flushing of the flow channel. Then, a pressure test is performed. The component to be tested is removed and one end of its flow channel opening is sealed, leaving only the flow channel opening used to connect with the medium supply pipeline 200. The component to be tested is then placed back into the housing 100 and medium is introduced. A stable pressure is established by adjusting the flow regulating valve 260, and the flow pressure sensor 270 monitors the pressure change to verify the flow channel sealing performance, thus achieving the pressure test. Afterwards, during flow calibration, the component to be tested is removed and the seal of the flow channel opening is opened, allowing the medium to enter from one flow channel opening and flow out from the other flow channel opening. The medium falls through the medium through hole to the medium container 300 for collection. The collected medium flow rate is compared with the measurement value of the flow sensor to achieve flow calibration. Therefore, by using the aforementioned additive manufacturing component internal flow channel flushing, pressurizing, and flow calibration device to perform flushing, pressurizing, and flow calibration operations, the repeated clamping and transfer of components caused by traditional multi-device testing is avoided, thus improving testing efficiency.

[0026] In some embodiments, the component to be tested is an additively manufactured aero-engine fuel nozzle. It is understood that the aero-engine fuel nozzle has a through-flow channel inside. When performing cleaning, pressure testing and flow calibration tests, the aero-engine fuel nozzle can be placed in the housing 100. During the cleaning and flow calibration stages, the flow channel is made open to allow the medium to pass through. During the pressure testing stage, the aero-engine fuel nozzle is removed and one side of its flow channel is blocked, leaving only one side of the flow channel open for communication with the medium supply pipeline 200. A closed system is established to maintain stable internal pressure of the flow channel for pressure testing.

[0027] As one possible implementation, such as Figure 1As shown, the media container 300 includes a filter chamber 310 and a storage chamber 320 that are interconnected. A media through-hole is connected to the filter chamber 310 via a pipe. The filter chamber 310 receives and filters the media and then passes it into the storage chamber 320 for storage. The filter chamber 310 is connected to the media through-hole of the housing 100 via a pipe and is used to receive the media falling from the housing 100 during the testing process. The storage chamber 320 is connected to the filter chamber 310 and is used to store the filtered media. During the testing process, the used media flows out from the media through-hole at the bottom of the housing 100, enters the filter chamber 310 via a pipe, where impurities are removed. The purified media then flows into the storage chamber 320 for storage. Through the cooperation of the filter chamber 310 and the storage chamber 320, media purification and recycling are achieved, avoiding media waste and reducing testing costs. Furthermore, the use of a pipe connected to the media through-hole, with one end of the pipe directly entering the filter chamber 310, ensures that all the media is passed into the filter chamber 310, reducing the error in flow rate calibration. For example, the filter chamber 310 may employ a multi-layer filter structure or a centrifugal separation device to separate impurities from the medium.

[0028] As one possible implementation, such as Figure 2 As shown, the storage chamber 320 is connected to the media supply source via a pipeline, used to supply the filtered media to the media supply pipeline 200. The storage chamber 320 is directly connected to the media supply source via a return pipeline, allowing the filtered media to re-enter the supply system. During the testing process, the media falls from the housing 100 through the media through-hole into the filter chamber 310 for purification, and the purified media is temporarily stored in the storage chamber 320. When the testing operation requires the reuse of the media, the media in the storage chamber 320 flows back to the media supply source through the pipeline under gravity or auxiliary driving force, and then enters the media supply pipeline 200 to participate in the cyclic testing. Through this cyclic supply mechanism, the media can be reused, reducing media consumption, lowering testing costs, and ensuring the continuity and stability of the testing process. For example, the connection between the storage chamber 320 and the media supply source can include actively delivering the media using a pump assembly, or using a level difference design to achieve gravity-fed return; a control valve can be installed in the pipeline to precisely regulate the media flow rate and avoid pressure fluctuations during the return process.

[0029] As one possible implementation, such as Figure 1 As shown, the additive manufacturing component internal flow channel flushing, pressurization and flow calibration device also includes a protective housing 400. The protective housing 400 forms a receiving cavity, and the box body 100 is disposed in the receiving cavity. The protective housing 400 is disposed above the medium container 300. A second medium through hole corresponding to the position of the medium through hole is opened at the bottom of the protective housing 400. The second medium through hole is used to allow the medium falling from the box body 100 to pass through to the medium container 300.

[0030] In practice, during the testing process, the medium inside the housing 100 falls through the medium through-hole and then continues to fall through the second medium through-hole at the bottom of the protective housing 400, eventually entering the medium container 300 below. By completely enclosing the housing 100 with the protective housing 400, splashing and leakage of the medium during its descent are effectively prevented, maintaining a clean testing environment. Simultaneously, the protective housing 400 provides external protection for the housing 100, avoiding interference from external factors and improving the stability and reliability of the testing process.

[0031] Furthermore, such as Figure 3 As shown, a funnel assembly 500 is connected to the lower surface of the protective housing 400, and the outlet of the funnel assembly 500 is connected to the medium container 300 via a pipe. Specifically, the funnel assembly 500 is connected to the lower surface of the protective housing 400, and the outlet of the funnel assembly 500 is connected to the medium container 300 via a pipe. The funnel assembly 500 is fixedly installed on the lower surface of the protective housing 400, and its inlet covers all the second medium through holes at the bottom of the protective housing 400. The outlet of the funnel assembly 500 is connected to the medium container 300 via a sealed pipe. During the testing process, the medium falling from the housing 100 passes through the medium through holes and the second medium through holes in sequence, and then all enters the inlet of the funnel assembly 500. Under the guiding effect of the inner wall of the funnel, the medium flows to the outlet and finally accurately enters the medium container 300 through the pipe. By setting up the funnel assembly 500, the falling medium can be effectively collected and guided, avoiding splashing and loss of the medium and improving the efficiency of medium recovery. At the same time, the centralized guiding effect of the funnel assembly 500 ensures that the medium can accurately enter the medium container 300, improving the accuracy of subsequent flow calibration.

[0032] As one possible implementation, such as Figure 1 As shown, multiple connecting rods are fixed to the corners of the lower surface of the housing 100. The lower ends of the connecting rods are connected to downward-sloping guide plates 600, which are used to guide the medium falling from the housing 100 to the medium container 300.

[0033] Specifically, the connecting rods are fixed to the four corners of the lower surface of the housing 100 by welding or bolting. The guide plate 600 is fixedly connected to the lower end of the connecting rods. The guide plate 600 has a downwardly inclined plate structure, and its inclination angle can be adjusted according to the trajectory of the falling medium. During the detection process, when the medium falls from the medium through hole at the bottom of the housing 100, the guide plate 600 receives the falling medium through its inclined surface and guides the medium into the medium container 300 below by gravity. By setting the structure of the guide plate 600, splashing and scattering of the medium during the falling process are effectively avoided, ensuring that the medium can accurately enter the medium container 300. For example, an anti-stick coating can be provided on the surface of the guide plate 600 to prevent the medium from adhering; or a baffle structure can be provided at the edge of the guide plate 600 to prevent the medium from overflowing or splashing.

[0034] In some embodiments, the guide plate 600 is connected to the lower part of the housing 100 by two opposing side plates of the same height. Since the guide plate 600 is inclined and the two side plates are arranged on both sides of the guide plate 600, the medium supply pipe 200 can extend from the higher side of the guide plate 600 and connect to the flow channel of the component to be tested through the first through hole. The test medium flowing out of the medium through hole can flow into the inclined guide plate 600. With the obstruction of the side plates on both sides, the splashing of the falling medium is blocked, reducing waste and ensuring the accuracy of the flow rate calibration. In another embodiment, the flow guide plate 600 is connected to the lower part of the housing 100 by three sequentially connected side plates. The side plate at a relatively higher position has a through hole for the medium supply pipe 200 to pass through. The medium supply pipe 200 passes through the through hole on the side plate and the first through hole to communicate with the component to be tested. The lower side of the flow guide plate 600 is not provided with a side plate and remains open to allow the medium to flow down into the medium container 300. This arrangement further prevents possible splashing of liquid, further reduces medium waste, and ensures the accuracy of flow rate calibration.

[0035] In some possible implementations, such as Figure 1 As shown, the additive manufacturing part internal flow channel flushing, pressurization and flow calibration device also includes an air cleaning chamber 700, which is connected to the housing 100. An air blowing assembly is installed in the air cleaning chamber 700, which is used to blow air to dry the parts.

[0036] Specifically, the additive manufacturing component internal flow channel flushing, pressurization, and flow calibration device also includes an air cleaning chamber 700, which is connected to the housing 100. An air blowing assembly is installed inside the air cleaning chamber 700 to dry the components. The air cleaning chamber 700 is connected to an opening in the side wall of the housing 100 through an opening. The air blowing assembly is fixedly installed inside the air cleaning chamber 700 by a bracket, with its air outlet facing the internal space of the housing 100. During the testing process, after the component flushing and pressurization tests are completed, the air blowing assembly is activated to generate airflow. The airflow enters the housing 100 through a connecting pipe, cleaning and drying the component surface and internal flow channels. By setting up an independent air cleaning chamber 700 and air blowing assembly, rapid drying of the components is achieved, avoiding the influence of residual media on subsequent flow calibration test results and improving the accuracy of flow calibration. Simultaneously, after the testing of the component is completed, the air blowing assembly is used to clean the inside of the component, removing internal residual liquid and preventing corrosion.

[0037] Understandably, by placing the air blowing assembly within a separate air purification chamber 700, and through an opening that aligns with the components inside the housing 100, the air purification chamber 700 provides the air blowing assembly with an independent, sealed space, effectively isolating it from dust and impurities in the external environment. This ensures that the air blown into the components remains clean at all times, avoiding the risk of secondary contamination.

[0038] As one possible implementation, such as Figure 1 As shown, a diversion block 210 is provided on the medium supply pipeline 200. The diversion block 210 divides the medium supply pipeline 200 into multiple branches, which are used to connect with the flow channels of the components to be tested through pipelines.

[0039] Specifically, the flow divider 210 is installed on the medium supply pipeline 200. It has an internal flow divider structure that distributes the single medium flow from the supply source to multiple outlet branches. Each branch is connected to the inlet of a different flow channel of the component via a pipeline. During testing, the medium enters the flow divider 210 from the supply source via the main pipeline and is then distributed to the various branches, simultaneously flowing to multiple flow channels of the component to be tested. By setting up the flow divider 210 structure, simultaneous testing of multiple flow channels of the component is achieved, improving testing efficiency. Furthermore, it can simultaneously test different flow channels of multiple components, further optimizing the testing operation and improving efficiency.

[0040] As one possible implementation, a hydraulic pump 220 is also installed on the medium supply pipeline 200. The hydraulic pump 220 is connected to the medium supply source and is used to provide power for the flow of the medium.

[0041] Understandably, the hydraulic pump 220 is installed at the beginning of the medium supply pipeline 200 and directly connected to the medium supply source, ensuring that the medium can be smoothly drawn in and pumped into the medium supply pipeline 200 system. During the testing process, after the hydraulic pump 220 starts, it draws the medium from the medium supply source and pushes the medium into the pipeline through an internal pressurization mechanism, thereby providing power for processes such as flushing, pressurization, and flow calibration, ensuring that the medium can flow to the test channel of the component as needed. By setting up the hydraulic pump 220, the medium flow pressure is maintained, ensuring the smooth progress of the testing operation.

[0042] As one possible implementation, such as Figure 1 As shown, the medium supply pipeline 200 is also equipped with a check valve 230, a mass flow meter 240, a solenoid valve 250 and a timer. The medium supply source, check valve 230, flow regulating valve 260, mass flow meter 240, solenoid valve 250, timer and flow pressure sensor 270 are sequentially arranged on the medium supply pipeline 200.

[0043] The aforementioned medium supply source, check valve 230, flow regulating valve 260, mass flow meter 240, solenoid valve 250, timer, and flow and pressure sensor 270 are sequentially installed on the medium supply pipeline 200 via flange or threaded connections, forming a complete detection and control loop. During detection, after the medium flows out of the medium supply source, it passes through the check valve 230 to prevent backflow. Subsequently, the flow regulating valve 260 controls the medium flow rate. The mass flow meter 240 monitors the medium's mass flow rate, fluid density, volumetric flow rate, and temperature parameters. The solenoid valve 250 controls the medium's on / off state. The timer records the detection time, and the flow and pressure sensor 270 detects the medium's flow and pressure parameters. By sequentially setting these control components, the monitoring of the medium flow process is achieved, ensuring the accuracy and reliability of the detection data.

[0044] In practice, after the hydraulic pump 220 is turned on, the medium flows sequentially through the check valve 230, the flow regulating valve 260, the mass flow meter 240, and the solenoid valve 250, and finally enters the component flow channel through the flow pressure sensor 270. During the flushing stage, the solenoid valve 250 is opened, and the medium flushes the flow channel. During the pressure test stage, the flow regulating valve 260 is adjusted to establish the required pressure, and the timer records the pressure holding time. During the flow calibration stage, the mass flow meter 240 measures the flow value and compares it with the medium collected in the medium container 300 to complete the flow calibration.

[0045] Understandably, the internal flow channel flushing, pressurization, and flow calibration device for additive manufacturing parts also includes a main control console. The main control console is communicatively connected to each valve and to the flow pressure sensor 270, used to control the operation of the testing process. Furthermore, the internal flow channel flushing, pressurization, and flow calibration device for additive manufacturing parts also includes a three-color indicator light. The three-color indicator light is fixedly mounted on the outer shell of the air purification chamber 700. The three-color indicator light is communicatively connected to the flow pressure sensor 270 and the main control console. Different colors indicate the status of the entire testing process based on the state changes of the flow pressure sensor 270. For example, when the testing process is in the flushing stage, if the flow pressure sensor 270 is at the first pressure and flow rate, the three-color indicator light displays the first color; when the testing process is in the pressurization stage, if the flow pressure sensor 270 is at the second pressure and flow rate, the three-color indicator light displays the second color; and when the testing process is in the flow calibration stage, if the flow pressure sensor 270 is at the third pressure and flow rate, the three-color indicator light displays the third color.

[0046] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for flushing, pressurizing, and calibrating the flow rate of an internal flow channel in an additively manufactured part, characterized in that, include: The box body has a first through hole and a medium through hole at the bottom, and the box body is used to accommodate the component to be tested; A medium supply pipeline has one end connected to a medium supply source and the other end used to connect to the test flow channel of the component through the first through hole. The medium supply pipeline is equipped with a flow regulating valve and a flow pressure sensor. A medium container, located below the housing, is used to receive the medium falling through the medium through-hole for flow rate calibration.

2. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 1, characterized in that, The medium container includes a filter chamber and a storage chamber that are interconnected. The medium through-hole is connected to the filter chamber through a pipe. The filter chamber is used to receive and filter the medium and to pass the medium into the storage chamber for storage.

3. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 2, characterized in that, The storage chamber is connected to the medium supply source via a pipeline, and is used to supply the filtered medium to the medium supply pipeline.

4. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 1, characterized in that, It also includes a protective housing, the protective housing having an internal cavity, the housing being disposed within the cavity, the protective housing being disposed above the medium container, and the bottom of the protective housing having a second medium through hole corresponding to the position of the medium through hole, the second medium through hole being used to allow the medium falling from the housing to pass through to the medium container.

5. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 4, characterized in that, The lower surface of the protective shell is connected to a funnel assembly, and the outlet of the funnel assembly is connected to the medium container through a pipe.

6. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 1, characterized in that, Multiple connecting rods are fixed to the corners of the lower surface of the housing. The lower ends of the connecting rods are connected to downward-sloping guide plates, which are used to guide the medium falling from the housing to the medium container.

7. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 1, characterized in that, It also includes an air cleaning chamber, which is connected to the housing. The air cleaning chamber is equipped with an air blowing assembly for blowing air to dry the components.

8. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 1, characterized in that, The medium supply pipeline is equipped with a flow divider block, which divides the medium supply pipeline into multiple branches. These multiple branches are used to connect with the flow channel to be tested of the component through pipelines.

9. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 1, characterized in that, A hydraulic pump is also installed on the medium supply pipeline. The hydraulic pump is connected to the medium supply source and is used to provide power for the flow of the medium.

10. The device for flushing, pressurizing, and calibrating the internal flow channels of additive manufacturing parts according to claim 1, characterized in that, The medium supply pipeline is also equipped with a check valve, a mass flow meter, a solenoid valve, and a timer. The medium supply source, the check valve, the flow regulating valve, the mass flow meter, the solenoid valve, the timer, and the flow pressure sensor are sequentially arranged on the medium supply pipeline.

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