Detection system and pipeline opening detection method

Abstract

The present invention provides a detection system and a pipeline opening detection method, which relate to the technical field of detection equipment, and solve the technical problem of residual detection liquid in the pump body after the pipeline opening detection test of each water pump to a certain extent. The detection system provided by the present invention is used for water pump pipeline detection, including a positioning device, multiple blocking devices, an inflation device, a valve part and a detection mechanism; the water pump is arranged on the positioning device, and forms a test cavity with the positioning device; a first air path is formed between the inflation device and the detection mechanism, a second air path is formed between the detection mechanism and the test cavity, and a passage is formed by the valve part, the passage is connected to the test cavity, and the passage can be connected to different pipelines of the water pump respectively, so that the pipeline can be connected to the test cavity; multiple blocking devices correspond to the blocked pipelines respectively, and can open the corresponding pipelines one by one.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a detection system and a pipeline opening detection method. Background Art

[0002] With the development of the automobile industry, water pumps are required to have energy-saving functions. When the engine parts that need to be cooled are at high temperatures, the water pump can provide a large flow of coolant. When the temperature is low, the water pump reduces the supply of coolant. This requires the ECU to control the rotation of the valve on the water pump according to the engine temperature to control the coolant flow to the engine cylinder block, cylinder head, radiator and other pipelines.

[0003] Usually, after the water pump is turned on, the opening size of each pipeline needs to be detected by flow rate. At present, the detection method of pipeline opening usually adopts special coolant as the test medium. Under the calibrated test pressure condition, the flow rate of each pipeline is detected by flow meter.

[0004] This method has a long test cycle, large medium consumption, high test cost, and requires a lot of supporting equipment. At the same time, the product after the test often retains a lot of coolant, causing pollution to the work station equipment and production environment, making it difficult to achieve the product cleanliness index, and causing inconvenience to storage, transportation, and user assembly and use.

[0005] Therefore, there is an urgent need to provide a detection system and a pipeline opening detection method to solve the problems existing in the prior art to a certain extent. Summary of the invention

[0006] The object of the present invention is to provide a detection system and a pipeline opening detection method, so as to solve the technical problem of residual detection liquid in the pump body after the pipeline opening detection test of the water pump to a certain extent.

[0007] A detection system provided by the present invention is used for water pump pipeline detection, including a positioning device, multiple blocking devices, an inflation device, a valve component and a detection mechanism; the water pump is arranged on the positioning device and forms a test cavity with the positioning device; a first air path is formed between the inflation device and the detection mechanism, a second air path is formed between the detection mechanism and the test cavity, and the valve component forms a passage, which is connected to the test cavity, and the passage can be respectively connected to different pipelines of the water pump so that the pipelines can be connected to the test cavity; the multiple blocking devices respectively block the pipelines and can open the corresponding pipelines one by one.

[0008] Wherein, the positioning device comprises a positioning fixture, the water pump is located on the positioning fixture, and forms the test cavity with the positioning fixture.

[0009] Specifically, a sealing member is provided at the position where the positioning fixture contacts the water pump.

[0010] Among them, the detection system provided by the present invention also includes a control device, which includes a first control unit and a second control unit; the first control unit is communicatively connected with the detection mechanism, the second control unit and multiple blocking devices respectively, and the first control unit can control the blocking device to open or close the pipeline; the second control unit is communicatively connected with the valve component to drive the valve component to rotate relative to the water pump so that the passage is relative to the corresponding pipeline.

[0011] Specifically, the multiple sealing devices all include a first solenoid valve, a telescopic cylinder and a sealing part; the sealing part is arranged at the telescopic end of the telescopic cylinder, and the first control unit is communicatively connected with the first solenoid valve to control the reversal of the solenoid valve; a third air path is formed between the inflation device and the air inlet of the first solenoid valve to inflate the cavity of the telescopic cylinder through the solenoid valve.

[0012] Furthermore, the blocking device is arranged in a one-to-one correspondence with the port of the pipeline, and the first solenoid valve is arranged in a one-to-one correspondence with the telescopic cylinder.

[0013] Wherein, the detection system provided by the present invention further includes a clamping mechanism, and the first control unit is communicatively connected with the clamping mechanism to control the clamping mechanism to press the water pump onto the positioning device.

[0014] Specifically, the clamping mechanism includes a second solenoid valve and a clamping cylinder, and the telescopic end of the clamping cylinder is connected to a clamping part; the first control unit is communicatively connected to the second solenoid valve, and a fourth air path is formed between the clamping cylinder and the inflation device to control the contact between the clamping part and the water pump so that the water pump is clamped on the positioning device.

[0015] Furthermore, the first control unit is an MCU, the second control unit is an ECU, and the inflation device is a pneumatic triplet.

[0016] Compared with the prior art, the detection system provided by the present invention has the following advantages:

[0017] The detection system provided by the present invention is used for water pump pipeline detection, including a positioning device, multiple blocking devices, an inflation device, a valve component and a detection mechanism; the water pump is arranged on the positioning device and forms a test cavity with the positioning device; a first air path is formed between the inflation device and the detection mechanism, a second air path is formed between the detection mechanism and the test cavity, and a passage is formed by the valve component, the passage is connected to the test cavity, and the passage can be connected to different pipelines of the water pump respectively, so that the pipeline can be connected to the test cavity; multiple blocking devices correspond to the blocked pipelines respectively, and can open the corresponding pipelines one by one.

[0018] From this analysis, it can be known that the positioning device can carry the water pump and form a test chamber with the water pump. Through the first air path formed between the inflation device and the detection mechanism and the second air path formed between the detection mechanism and the test chamber, the inflation device can inflate the test chamber. Since a passage is formed on the valve member and multiple pipelines to be tested are formed on the water pump, by connecting the passage of the valve member with the test chamber, when the passage is relatively connected to the corresponding pipeline to be tested, the gas in the test chamber flows into the pipeline through the passage of the valve member.

[0019] Since the blocking device in the present application can correspond to the pipeline to be opened for testing, the gas in the test chamber will flow out of the test chamber through the passage of the valve and the pipeline of the water pump. At this time, the inflation device continues to inflate the test chamber, so that the flow value of the tested pipeline can be detected by the detection mechanism, and then by comparing it with the standard flow value, it can be determined whether the tested pipeline is qualified.

[0020] The present application provides a system for detecting pipelines through gas. When the detection is completed, there is no detection liquid in the valve passage and the water pump pipeline, thereby reducing the test cycle and achieving the purpose of not affecting the product cleanliness index.

[0021] In addition, the present invention also provides a pipeline opening detection method, which uses the above-mentioned detection system and includes the following steps: step S100, calibrating the detection system with a sample pump and obtaining a standard flow value; step S200, moving the water pump to be tested onto the positioning device, and inflating the test chamber through the inflation device; step S300, adjusting the position of the valve member relative to the water pump so that the passage of the valve member is relative to one of the pipelines of the water pump, and the blocking device opens the corresponding pipeline to test the opening of the pipeline and obtain a detection value; step S400, comparing the detection value with the standard flow value. If the detection value is less than the standard flow value, the detected pipeline is qualified, and the valve member is rotated to detect the relative position of the passage and the remaining pipelines. If there is a pipeline with a flow value greater than the standard flow value, the detected pipeline is unqualified and the water pump is unqualified.

[0022] The above method can be used to detect all pipelines of the water pump, so that unqualified water pumps can be screened out, and unqualified pipelines in unqualified water pumps can also be screened out. The operation is simple, the cost is low, the detection cycle is short, and the repetition accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structural connection of a detection system provided by an embodiment of the present invention;

[0025] Figure 2 The present invention provides a flow chart of a pipeline opening detection method according to an embodiment of the present invention.

[0026] In the figure: 1-positioning fixture; 2-sealing member; 3-inflating device; 301-first air circuit; 4-detection mechanism; 401-second air circuit; 5-water pump; 501-pipeline; 502-test chamber; 6-valve member; 601-passageway; 7-first control unit; 8-second control unit; 9-first solenoid valve; 901-third air circuit; 10-telescopic cylinder; 1001-sealing part; 11-second solenoid valve; 1101-fourth air circuit; 12-pressing cylinder; 1201-pressing part. DETAILED DESCRIPTION

[0027] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0028] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0032] For ease of description, spatial relative terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the drawings. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0033] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0034] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0035] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0036] Figure 1 A schematic diagram of the structural connection of a detection system provided in an embodiment of the present invention.

[0037] like Figure 1 As shown, the present invention provides a detection system for water pump pipeline detection, including a positioning device, a blocking device, an inflation device 3, a valve member 6 and a detection mechanism 4; the water pump 5 is arranged on the positioning device, and forms a test cavity 502 with the positioning device; a first air path 301 is formed between the inflation device 3 and the detection mechanism 4, a second air path 401 is formed between the detection mechanism 4 and the test cavity 502, and the valve member 6 forms a passage 601, the passage 601 is connected to the test cavity 502, and the passage 601 can be respectively connected to different pipelines 501 of the water pump 5, so that the pipelines 501 can be connected to the test cavity 502; the blocking devices respectively block the pipelines 501, and can open the corresponding pipelines 501 one by one.

[0038] Compared with the prior art, the detection system provided by the present invention has the following advantages:

[0039] The detection system provided by the present invention can carry the water pump 5 through the positioning device, and form a test chamber 502 with the water pump 5. Through the first gas path 301 formed between the inflation device 3 and the detection mechanism 4 and the second gas path 401 formed between the detection mechanism 4 and the test chamber 502, the inflation device 3 can be inflated into the test chamber 502. Since the passage 601 is formed on the valve member 6 and a plurality of pipelines 501 to be detected are formed on the water pump 5, the passage 601 of the valve member 6 is connected with the test chamber 502, and when the passage 601 is relatively connected with the corresponding pipeline 501 to be tested, the gas in the test chamber 502 flows into the pipeline 501 through the passage 601 of the valve member 6.

[0040] Since the blocking device blocking the port of the pipeline 501 in the present application can correspond to the pipeline 501 for opening detection, the gas in the test chamber 502 will flow out of the test chamber 502 through the passage 601 of the valve 6 and the pipeline 501 of the water pump 5.

[0041] During the test, the inflation device 3 continuously inflates the test cavity 502, and all the pipelines 501 of the water pump 5 except the test pipeline 501 are in a blocked state. The gas entering the test cavity 502 can slowly flow out from the test pipeline 501, and when the gas flows out, the inflation device 3 still continuously inflates the test cavity 502 through the detection mechanism 4. Therefore, the detection of the gas flow rate by the detection mechanism 4 can reflect the opening size of the tested pipeline 501, that is, the greater the gas flow rate, the greater the opening of the pipeline 501, and the smaller the flow rate, the smaller the opening of the pipeline 501.

[0042] After the detection mechanism 4 measures the gas flow value, it compares it with the standard flow value to determine whether the pipeline 501 is qualified.

[0043] The present application provides a system for detecting the pipeline 501 through gas. When the detection is completed, there is no detection liquid in the passage 601 of the valve 6 and the pipeline 501 of the water pump 5, thereby reducing the test cycle and achieving the purpose of not affecting the product cleanliness index.

[0044] It should be noted that the inflation device 3 in the present application can be a structure such as an inflation pump that can inject air into the test cavity 502, the detection mechanism 4 can be a gas flow detector, and the first gas path 301 and the second gas path 401 can both use air pipes.

[0045] The inflation device 3 and the detection mechanism 4 are connected through an air pipe, and the detection mechanism 4 and the test cavity 502 are connected, so that the gas in the inflation device 3 can quickly enter the detection mechanism 4 and enter the test cavity 502 from the detection mechanism 4.

[0046] Among them, Figure 1 As shown, the positioning device includes a positioning fixture 1 , and the water pump 5 is located on the positioning fixture 1 and forms a test cavity 502 with the positioning fixture 1 .

[0047] The positioning fixture 1 in the present application is a disc-shaped structure. During the test, the water pump 5 is directly placed on the positioning fixture 1. Figure 1 The positioning fixture 1 shown is only a simplified structural diagram. In actual application, a plurality of protrusions corresponding to the positioning holes on the water pump 5 are formed on the positioning fixture 1. The positioning holes and protrusions on the water pump 5 cooperate to limit the water pump 5, thereby improving the stability between the water pump 5 and the positioning fixture 1 to a certain extent.

[0048] Specifically, Figure 1As shown, a sealing member 2 is provided at the position where the positioning fixture 1 contacts the water pump 5 .

[0049] Since a test cavity 502 is formed between the positioning fixture 1 and the water pump 5 in the present application, a seal 2 is provided at the position where the positioning fixture 1 contacts the water pump 5, which can improve the sealing degree between the water pump 5 and the positioning fixture 1, thereby improving the airtightness of the test cavity 502 to a certain extent, and further ensuring the accuracy of the detection of the opening of the pipeline 501 to a certain extent.

[0050] like Figure 1 As shown, the second air path 401 in the present application is formed in the positioning fixture 1. Specifically, an air channel connected to the test cavity 502 can be formed in the positioning fixture 1, and the detection mechanism 4 and the air channel are connected by an air pipe to realize the inflation function in the test cavity 502. Alternatively, a receiving groove for preventing the air pipe from passing through the receiving groove into the test cavity 502 can be formed in the positioning fixture 1 to achieve the purpose of inflating the test cavity 502.

[0051] It should be noted here that the seal 2 in the present application is a sealing ring. When the pump body of the water pump 5 is in contact with the positioning fixture 1, the sealing ring slightly protrudes from the installation plane of the positioning fixture 1, so that the sealing ring can be compressed after the water pump 5 falls on the positioning fixture 1, thereby improving the sealing degree between the water pump 5 and the positioning fixture 1.

[0052] Among them, Figure 1 As shown, the detection system provided by the present application also includes a control device, which includes a first control unit 7 and a second control unit 8; the first control unit 7 is communicatively connected with the detection mechanism 4, the second control unit 8 and the blocking device respectively, and the first control unit 7 can control the blocking device to open or close the port of the pipeline 501; the second control unit 8 is communicatively connected with the valve member 6 to drive the valve member 6 to rotate relative to the water pump 5 so that the passage 601 is relative to the corresponding pipeline 501.

[0053] The first control unit 7 can control the detection mechanism 4 to perform detection, control the blocking device to block or open the corresponding pipeline 501, and control the second control unit 8 to send a control signal to the valve member 6 to realize the rotation or stop of the valve member 6 relative to the water pump 5.

[0054] During the test, the first control unit 7 controls the blocking device to block all pipelines 501 , and sends a signal to the second control unit 8 so that the second control unit 8 controls the passage 601 of the valve member 6 to be misaligned with the pipeline 501 .

[0055] Afterwards, the first control unit 7 controls the blocking device to open one of the pipelines 501 , and the second control unit 8 controls the valve member 6 to rotate so that the passage 601 of the valve member 6 is aligned with the pipeline 501 to be tested.

[0056] Finally, the inflation device 3 inflates the detection mechanism 4, and then controls the detection mechanism 4 to inflate the test chamber 502 through the first control unit 7, so that the gas in the test chamber 502 can flow out of the water pump 5 through the pipeline 501 under inspection, so that the flow value can be measured by the detection mechanism 4, and then by comparing with the standard value, it is known whether the inspected pipeline 501 is qualified.

[0057] Specifically, Figure 1 As shown, the blocking device includes a first solenoid valve 9, a telescopic cylinder 10 and a blocking portion 1001; the blocking portion 1001 is arranged at the telescopic end of the telescopic cylinder 10, and the first control unit 7 is communicatively connected with the first solenoid valve 9 to control the solenoid valve to switch direction; a third air path 901 is formed between the inflation device 3 and the air inlet of the first solenoid valve 9 to inflate the cavity of the telescopic cylinder 10 through the solenoid valve.

[0058] Preferably, the blocking device in the present application is composed of a first solenoid valve 9, a telescopic cylinder 10 and a blocking portion 1001 arranged at the telescopic end of the telescopic cylinder 10. The first control unit 7 is communicatively connected with the first solenoid valve 9, so as to control the first solenoid valve 9 to switch direction, thereby realizing the extension and retraction of the telescopic cylinder 10 and driving the blocking portion 1001 to block or open the pipeline 501.

[0059] Further preferably, in the present application, the blocking device is arranged in a one-to-one correspondence with the port of the pipeline 501, and the first solenoid valve 9 is arranged in a one-to-one correspondence with the telescopic cylinder 10, a third air circuit 901 is connected between the inflation device 3 and the first solenoid valve 9, and the third air circuit 901 may also be an air pipe, and the air pipe and the first solenoid valve 9 are arranged in a one-to-one correspondence, so that the purpose of inflating multiple telescopic cylinders 10 can be achieved by one inflation device 3, and the pipelines 501 can be detected one by one by using the first solenoid valve 9 and the telescopic cylinder 10 arranged in a one-to-one correspondence with the pipelines 501.

[0060] It should be noted here that the water pump 5 shown in the figure of the present application with four pipelines 501 is only one type of water pump 5, and other types of water pumps 5 with a corresponding number can be tested using the detection system provided by the present application.

[0061] like Figure 1 As shown, when one of the pipelines 501 needs to be opened for detection, the first control unit 7 controls the first solenoid valve 9 at the position of the corresponding pipeline 501 to change to the contracted position, and the first solenoid valves 9 corresponding to other pipelines 501 are still in the extended position, and the gas filled into the inflation device 3 enters the rod chamber of the telescopic cylinder 10 through the first solenoid valve 9, and the gas in the rodless chamber is discharged by the first solenoid valve 9, thereby realizing the recovery of the sealing part 1001, and then opening the pipeline 501 to be detected.

[0062] It should be noted here that the pipelines 501 in the present application are checked one by one. When the blocking part 1001 opens one of the pipelines 501, the blocking parts 1001 corresponding to the other pipelines 501 are all blocked on the pipelines 501. When one of the pipelines 501 is unqualified, the test continues until all the pipelines 501 are inspected, so that all the unqualified pipelines 501 can be screened out for targeted maintenance.

[0063] Among them, Figure 1 As shown, the detection system provided by the present invention further includes a pressing mechanism, and the first control unit 7 is communicatively connected with the pressing mechanism to control the pressing mechanism to press the water pump 5 onto the positioning device.

[0064] When the positioning fixture 1 carries the water pump 5 to form the test cavity 502, in order to improve the air tightness of the test cavity 502, a clamping mechanism is also provided in the present application. By controlling the first control unit 7 to press down the clamping mechanism, the pump body of the water pump 5 can be more closely contacted and fitted with the positioning fixture 1, thereby cooperating with the seal 2 arranged along the circumference of the positioning fixture 1 to improve the sealing degree.

[0065] Specifically, Figure 1 As shown, the clamping mechanism includes a second solenoid valve 11 and a clamping cylinder 12, and the telescopic end of the clamping cylinder 12 is connected to a clamping part 1201; the first control unit 7 is communicatively connected with the second solenoid valve 11, and a fourth air path 1101 is formed between the clamping cylinder 12 and the inflation device 3 to control the contact between the clamping part 1201 and the water pump 5, so that the water pump 5 is clamped on the positioning device.

[0066] Preferably, the present application provides a preferred embodiment, in which the clamping mechanism includes a second solenoid valve 11 and a clamping cylinder 12, and the first control unit 7 controls the switching of the second solenoid valve 11 between the extended position and the contracted position, so that the clamping part 1201 on the clamping cylinder 12 moves toward or away from the water pump 5, thereby achieving the purpose of further clamping the water pump 5 on the positioning fixture 1 through the clamping part 1201 formed by the telescopic end of the clamping cylinder 12.

[0067] The fourth gas path 1101 in the present application can also adopt an air pipe, so that the inflation device 3 can be connected to the second solenoid valve 11, so that the gas can enter the compression cylinder 12.

[0068] The clamping mechanism in the present application may be multiple and arranged at intervals along the circumference of the water pump 5 , so that pressure can be uniformly applied to the water pump 5 , so that the water pump 5 and the positioning fixture 1 are in more stable and closer contact.

[0069] It should be noted that this application Figure 1 The direction of the middle arrow is the direction of the force applied by the clamping mechanism to the water pump 5 .

[0070] Furthermore, if Figure 1 As shown, the first control unit 7 is an MCU, the second control unit 8 is an ECU, and the inflation device 3 is a pneumatic triplet.

[0071] Since the water pump 5 in the present application is mainly used in automobiles, it is necessary to simulate the state of the water pump 5 in the operation of the automobile even during the test, so that the tested water pump 5 can accurately respond to the situation of the automobile after installation. Therefore, the first control unit 7 in the present application is an MCU (Microcontroller Unit) micro control unit, and the second control unit 8 is an ECU (Electronic Control Unit) electronic control unit, also known as a "driving computer".

[0072] Since in the present application, gas is filled into the interior of the water pump 5 to detect the pipeline 501 of the water pump 5, but there are a large amount of pollutants such as dust and impurities in the external gas, therefore, preferably, the inflation device 3 in the present application is a pneumatic triplet, including an air filter, a pressure reducing valve and an oil mist collector, which can provide a purified and filtered air source, thereby ensuring the cleanliness of the cavity of the water pump 5 to a certain extent, and avoiding the impact of the test on the use of the water pump 5.

[0073] Figure 2 The present invention provides a flow chart of a pipeline opening detection method according to an embodiment of the present invention.

[0074] In addition, the present invention also provides a method for detecting the opening of pipeline 501, which uses the above-mentioned detection system and includes the following steps: step S100, calibrating the detection system with a sample pump and obtaining a standard flow value; step S200, moving the water pump 5 to be tested onto the positioning device, and inflating the test chamber 502 through the inflation device 3; step S300, adjusting the position of the valve member 6 relative to the water pump 5, so that the passage 601 of the valve member 6 is relative to one of the pipelines 501 of the water pump 5, and the blocking device opens the corresponding pipeline 501 to test the opening of the pipeline 501 and obtain a detection value; step S400, comparing the detection value with the standard flow value, if the detection value is less than the standard flow value, the detected pipeline 501 is qualified, the valve member 6 is rotated, so that the passage 601 is relative to the remaining pipelines 501 for detection, if there is a pipeline 501 with a flow value greater than the standard flow value, the detected pipeline 501 is unqualified and the water pump 5 is unqualified.

[0075] In step S100, the sample pump is a water pump 5 through which coolant is passed for testing, and the value measured by the water pump 5 is a standard value. By combining the sample pump with the detection system, the test device can be adjusted and calibrated to improve the accuracy of the detection system.

[0076] In step S200, preferably, the detection mechanism 4 in the present application inflates the test chamber 502 for 8 seconds, stabilizes for 8 seconds, and detects for 3 seconds, thereby obtaining the opening flow data of one of the pipelines 501 of the detected water pump 5.

[0077] In step S300 , the rotation of the valve member 6 and the corresponding opening of the blocking device are automatically adjusted and responded to by the first control unit 7 and the second control unit 8 without manual intervention.

[0078] In step S400 , after the detection system detects all pipelines 501 of the detected water pump 5 , the detection is stopped. Even if the first pipeline 501 fails the test, the test is still continued, so that all pipelines 501 of the water pump 5 can be screened.

[0079] The water pump 5 can be tested simply and quickly through the above steps, and because the pump body is filled with a clean air source, the subsequent transportation and use of the water pump 5 can be facilitated.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection system for water pump pipeline detection, characterized in that: It includes a positioning device, a plurality of blocking devices, an inflation device, a valve and a detection mechanism; The water pump is arranged on the positioning device and forms a test cavity with the positioning device; A first air path is formed between the inflation device and the detection mechanism, a second air path is formed between the detection mechanism and the test chamber, the valve member forms a passage, the passage is connected to the test chamber, and the passage can be respectively connected to different pipelines of the water pump, so that the pipeline can be connected to the test chamber; The plurality of blocking devices respectively block the pipelines and can open the corresponding pipelines one by one; The detection mechanism is a gas flow detector.

2. The detection system according to claim 1, characterized in that: The positioning device comprises a positioning fixture, the water pump is located on the positioning fixture, and forms the test cavity with the positioning fixture.

3. The detection system according to claim 2, characterized in that: A sealing member is provided at the position where the positioning fixture contacts the water pump.

4. The detection system according to claim 1, characterized in that: Also included is a control device, the control device comprising a first control unit and a second control unit; The first control unit is respectively connected to the detection mechanism, the second control unit and the plurality of blocking devices for communication, and the first control unit can control the blocking device to open or close the pipeline; The second control unit is in communication connection with the valve component to drive the valve component to rotate relative to the water pump so that the passage is positioned relative to the corresponding pipeline.

5. The detection system according to claim 4, characterized in that: The plurality of blocking devices each include a first solenoid valve, a telescopic cylinder and a blocking portion; The blocking portion is arranged at the telescopic end of the telescopic cylinder, and the first control unit is communicatively connected with the first solenoid valve to control the solenoid valve to perform reversal; A third air path is formed between the inflation device and the air inlet of the first solenoid valve, so as to inflate the cavity of the telescopic cylinder through the solenoid valve.

6. The detection system according to claim 5, characterized in that: The blocking device is arranged in a one-to-one correspondence with the port of the pipeline, and the first solenoid valve is arranged in a one-to-one correspondence with the telescopic cylinder.

7. The detection system according to claim 4, characterized in that: It also includes a clamping mechanism, and the first control unit is communicatively connected with the clamping mechanism to control the clamping mechanism to clamp the water pump onto the positioning device.

8. The detection system according to claim 7, characterized in that: The clamping mechanism comprises a second solenoid valve and a clamping cylinder, and the telescopic end of the clamping cylinder is connected to a clamping part; The first control unit is communicatively connected with the second solenoid valve, and a fourth air path is formed between the pressing cylinder and the inflation device to control the contact between the pressing part and the water pump so that the water pump is pressed against the positioning device.

9. The detection system according to claim 4, characterized in that: The first control unit is an MCU, the second control unit is an ECU, and the inflation device is a pneumatic triplet.

10. A pipeline opening detection method using the detection system provided by any one of claims 1 to 9, characterized in that: The steps include: Step S100, calibrating the detection system with a sample pump and obtaining a standard flow value; Step S200, moving the water pump to be tested onto the positioning device, and inflating the test cavity through the inflation device; Step S300, adjusting the position of the valve member relative to the water pump so that the passage of the valve member is aligned with one of the pipelines of the water pump, and causing the blocking device to open the corresponding pipeline to test the opening of the pipeline and obtain a detection value; Step S400, compare the detected value with the standard flow value. If the detected value is less than the standard flow value, the detected pipeline is qualified. The valve member is rotated to detect the relative position of the passage and the remaining pipelines. If there is a pipeline with a flow value greater than the standard flow value, the detected pipeline is unqualified and the water pump is unqualified.

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