CN113740046A - Detection system and pipeline opening detection method - Google Patents
Detection system and pipeline opening detection method Download PDFInfo
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- CN113740046A CN113740046A CN202111052047.9A CN202111052047A CN113740046A CN 113740046 A CN113740046 A CN 113740046A CN 202111052047 A CN202111052047 A CN 202111052047A CN 113740046 A CN113740046 A CN 113740046A
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- 238000001514 detection method Methods 0.000 title claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000012360 testing method Methods 0.000 claims abstract description 81
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000003825 pressing Methods 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000008094 contradictory effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a detection system and a pipeline opening detection method, relates to the technical field of detection equipment, and aims to solve the technical problem that detection liquid remains in a pump body after detection tests of the opening of each pipeline of a water pump to a certain extent. The detection system provided by the invention is used for detecting a water pump pipeline and comprises a positioning device, a plurality of plugging devices, an air charging device, a valve piece 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 passage is formed between the inflating device and the detection mechanism, a second air passage is formed between the detection mechanism and the test cavity, a passage is formed on the valve piece, the passage is communicated with the test cavity, and the passages can be respectively communicated with different pipelines of the water pump so as to enable the pipelines to be communicated with the test cavity; a plurality of plugging devices correspond the shutoff pipeline respectively, and can open the pipeline that corresponds one by one.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a detection system and a pipeline opening detection method.
Background
Along with the development of the automobile industry, the water pump is required to have an energy-saving function, when parts of an engine needing cooling are at high temperature, the water pump can provide large-flow cooling liquid, and when the temperature is low, the water pump reduces the supply of the cooling liquid. The ECU is required to control the rotation of a valve on the water pump according to the temperature of the engine so as to control the flow of the cooling liquid to pipelines of the engine cylinder body, the cylinder cover, the radiator and the like.
The opening of each pipeline needs to be detected through flow detection after the water pump rotates, and at present, the detection mode of the opening of each pipeline usually adopts special cooling liquid as a test medium, and the flow of each pipeline is detected through a flow meter under the condition of calibrating test pressure.
The method has the advantages of long test period, large medium consumption, high test cost and more matched equipment, and meanwhile, the tested product often retains a plurality of cooling liquids to pollute station appliances and production environment, so that the cleanliness index of the product is not easy to reach, and the method brings inconvenience to storage, transportation and user assembly and use.
Therefore, it is desirable to provide a detection system and a method for detecting the opening of a pipeline, so as to solve the problems in the prior art to a certain extent.
Disclosure of Invention
The invention aims to provide a detection system and a pipeline opening detection method, which aim to solve the technical problem that detection liquid remains in a pump body after the opening detection test of each pipeline of a water pump to a certain extent.
The invention provides a detection system for water pump pipeline detection, which comprises a positioning device, a plurality of plugging devices, an air charging device, a valve and a detection mechanism, wherein the positioning device is used for positioning a water pump pipeline; 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 inflating device and the detection mechanism, a second air path is formed between the detection mechanism and the test cavity, a passage is formed on the valve, the passage is communicated with the test cavity, and the passages can be respectively communicated with different pipelines of the water pump so as to enable the pipelines to be communicated with the test cavity; the plugging devices are used for plugging the pipelines correspondingly and can open the corresponding pipelines one by one.
The positioning device comprises a positioning fixture, the water pump is located on the positioning fixture, and the water pump and the positioning fixture form the test cavity.
Specifically, a sealing element is arranged at the position where the positioning clamp is in contact with the water pump.
The detection system further comprises a control device, wherein the control device comprises a first control unit and a second control unit; the first control unit is respectively in communication connection with the detection mechanism, the second control unit and the plugging devices, and can control the plugging devices to open or close the pipeline; the second control unit is in communication connection with the valve piece to drive the valve piece to rotate relative to the water pump, so that the passage and the corresponding pipeline are opposite.
Specifically, each of the plurality of plugging devices comprises a first electromagnetic valve, a telescopic cylinder and a plugging part; the plugging part is arranged at the telescopic end of the telescopic cylinder, and the first control unit is in communication connection with the first electromagnetic valve so as to control the electromagnetic valve to reverse; and a third air path is formed between the air charging device and the air inlet of the first electromagnetic valve so as to charge air in the cavity of the telescopic cylinder through the electromagnetic valve.
Furthermore, the plugging device is arranged corresponding to the port of the pipeline one by one, and the first electromagnetic valves are arranged corresponding to the telescopic cylinders one by one.
The detection system further comprises a pressing mechanism, and the first control unit is in communication connection with the pressing mechanism to control the pressing mechanism to press the water pump on the positioning device.
The compressing mechanism comprises a second electromagnetic valve and a compressing cylinder, and the telescopic end of the compressing cylinder is connected with a compressing part; the first control unit is in communication connection with the second electromagnetic valve, and a fourth air path is formed between the pressing cylinder and the air charging device to control the pressing part to be in contact with the water pump so that the water pump is pressed on the positioning device.
Further, the first control unit is an MCU, the second control unit is an ECU, and the inflation device is a pneumatic triple piece.
Compared with the prior art, the detection system provided by the invention has the following advantages:
the detection system provided by the invention is used for detecting a water pump pipeline and comprises a positioning device, a plurality of plugging devices, an air charging device, a valve piece 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 passage is formed between the inflating device and the detection mechanism, a second air passage is formed between the detection mechanism and the test cavity, a passage is formed on the valve piece, the passage is communicated with the test cavity, and the passages can be respectively communicated with different pipelines of the water pump so as to enable the pipelines to be communicated with the test cavity; a plurality of plugging devices correspond the shutoff pipeline respectively, and can open the pipeline that corresponds one by one.
From this analysis can know, can bear the weight of the water pump through positioner to form the test chamber with the water pump. The first air path formed between the air charging device and the detection mechanism and the second air path formed between the detection mechanism and the test cavity enable the air charging device to charge air into the test cavity. Because be formed with the route on the valve member, be formed with a plurality of pipelines that wait to detect on the water pump, consequently, through being linked together the route with the test chamber of valve member, when the route is switched on with the corresponding pipeline phase place that needs the test, the gas in the test chamber passes through the route flow direction pipeline of valve member in.
Because the shutoff can correspond in the plugging device of pipeline and open the pipeline that detects in this application, consequently, the pipeline outflow test chamber of passageway and water pump that the gas in the test intracavity can pass through the valve member. At the moment, the inflating device continues to inflate the test cavity, so that the flow value of the detected pipeline can be detected through the detection mechanism, and whether the detected pipeline is qualified or not is judged through comparison with the standard flow value.
The application provides a system that detects is carried out the pipeline through gas, when detecting the completion back, does not have in the pipeline of the route of valve member and water pump and detects liquid to can reduce test cycle, reach the purpose that does not influence the product cleanliness index.
In addition, the invention also provides a method for detecting the opening degree of the pipeline, which applies the detection system and comprises the following steps: s100, calibrating the detection system by using a sample pump, and acquiring a standard flow value; s200, moving the water pump to be tested to the positioning device, and inflating the test cavity through the inflating device; step S300, adjusting the position of the valve element relative to the water pump to ensure that the passage of the valve element is opposite to one of the pipelines of the water pump, and enabling the plugging device to open the corresponding pipeline so as to test the opening of the pipeline to obtain a detection value; step S400, comparing the detection value with the standard flow value, if the detection value is smaller than the standard flow value, the detected pipeline is qualified, the valve rotates to enable the passage and the rest of pipelines to be opposite to each other for detection, and if the pipeline larger than the standard flow value exists, the detected pipeline is unqualified, and the water pump is unqualified.
By the method, all pipelines of the water pump can be detected, unqualified water pumps can be screened, unqualified pipelines in the unqualified water pumps can also be screened, and the method is simple in operation, low in cost, short in detection period and high in repetition precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a structural connection of a detection system according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting a pipe opening according to an embodiment of the present invention.
In the figure: 1-positioning a fixture; 2-a seal; 3-an inflation device; 301-a first gas path; 4-a detection mechanism; 401-a second gas path; 5, a water pump; 501-pipeline; 502-a test chamber; 6-a valve element; 601-a via; 7-a first control unit; 8-a second control unit; 9-a first solenoid valve; 901-a third gas path; 10-a telescopic cylinder; 1001-a sealing part; 11-a second solenoid valve; 1101-a fourth gas path; 12-a compacting cylinder; 1201-compression section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
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. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Fig. 1 is a schematic structural connection diagram of a detection system according to an embodiment of the present invention.
As shown in fig. 1, the present invention provides a detection system for detecting a water pump pipeline, which includes a positioning device, a plugging device, an air charging 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 passage 301 is formed between the inflating device 3 and the detecting mechanism 4, a second air passage 401 is formed between the detecting mechanism 4 and the testing cavity 502, a passage 601 is formed on the valve piece 6, the passage 601 is communicated with the testing cavity 502, and the passages 601 can be respectively communicated with different pipelines 501 of the water pump 5, so that the pipelines 501 can be communicated with the testing cavity 502; the plugging devices respectively correspond to the plugging pipelines 501, and the corresponding pipelines 501 can be opened one by one.
Compared with the prior art, the detection system provided by the invention has the following advantages:
the detection system provided by the invention can bear the water pump 5 through the positioning device, and the detection system and the water pump 5 form a test cavity 502. The first air passage 301 formed between the inflator 3 and the detection mechanism 4 and the second air passage 401 formed between the detection mechanism 4 and the test chamber 502 enable the inflator 3 to inflate the test chamber 502. Because the passage 601 is formed on the valve element 6 and the water pump 5 is formed with a plurality of pipelines 501 to be tested, when the passage 601 of the valve element 6 is communicated with the test cavity 502, and the corresponding pipeline 501 to be tested is communicated with the passage 601, the gas in the test cavity 502 flows into the pipeline 501 through the passage 601 of the valve element 6.
Because the plugging device plugging the end of the pipeline 501 in the present application can correspondingly open the pipeline 501 to be detected, the gas in the test chamber 502 can flow out of the test chamber 502 through the passage 601 of the valve element 6 and the pipeline 501 of the water pump 5.
During testing, the inflating device 3 continuously inflates the testing cavity 502, all the other pipelines 501 of the water pump 5 except the testing pipeline 501 are in a blocking state, gas entering the testing cavity 502 can slowly flow out from the tested pipelines 501, and when the gas flows out, the inflating device 3 still continuously inflates the testing cavity 502 through the detecting mechanism 4, so that the opening size of the tested pipelines 501 can be reflected through detection of the detecting mechanism 4 on gas flow, namely the gas flow is larger, the opening of the pipelines 501 is larger, the flow is smaller, and the opening of the pipelines 501 is smaller.
After the gas flow value is detected by the detection mechanism 4, the pipeline 501 is judged to be qualified or not by comparing the gas flow value with the standard flow value.
The application provides a system that detects is carried out pipeline 501 through gas, and when detecting the completion back, there is not any liquid that detects in passageway 601 of valve member 6 and water pump 5's the pipeline 501 to can reduce test cycle, reach the purpose that does not influence the product cleanliness index.
It should be added that, in the present application, the inflation device 3 may be a structure capable of injecting air into the test cavity 502, such as an inflator pump, the detection mechanism 4 may be a gas flow detector, and both the first gas path 301 and the second gas path 401 may employ gas tubes.
The air charging device 3 is connected with the detection mechanism 4 through the air pipe, and the detection mechanism 4 is connected with the test cavity 502, so that air of the air charging device 3 can rapidly enter the detection mechanism 4 and enter the test cavity 502 through the detection mechanism 4.
As shown in fig. 1, the positioning device includes a positioning fixture 1, and the water pump 5 is located on the positioning fixture 1 and forms a testing chamber 502 with the positioning fixture 1.
Specifically, as shown in fig. 1, a seal 2 is provided at a position where the positioning jig 1 is in contact with the water pump 5.
Because be formed with test chamber 502 between positioning fixture 1 and the water pump 5 in this application, and set up the sealed degree that sealing member 2 can improve between water pump 5 and the positioning fixture 1 in the position that positioning fixture 1 and water pump 5 contacted to can promote the gas tightness of test chamber 502 to a certain extent, and then guarantee the degree of accuracy that detects pipeline 501 aperture to a certain extent.
As shown in fig. 1, second gas circuit 401 in this application is formed in positioning fixture 1, specifically, can be formed with the air flue that is linked together with test chamber 502 for positioning fixture 1, is connected through the trachea between detection mechanism 4 and the air flue, realizes the function of aerifing in test chamber 502, also can be formed with the holding tank that is used for preventing tracheal in positioning fixture 1, and the trachea passes the holding tank and gets into test chamber 502 to the purpose of aerifing in test chamber 502 is realized.
It should be added that, the sealing member 2 in this application is a sealing ring, and when the pump body of the water pump 5 is located at the positioning fixture 1 and contacts with the positioning fixture 1, the sealing ring slightly protrudes out of 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, and the sealing degree between the water pump 5 and the positioning fixture 1 can be further improved.
As shown in fig. 1, the detection system provided by the present application further includes a control device, where the control device includes a first control unit 7 and a second control unit 8; the first control unit 7 is respectively in communication connection with the detection mechanism 4, the second control unit 8 and the plugging device, and the first control unit 7 can control the plugging device to open or close the port of the pipeline 501; the second control unit 8 is in communication connection with the valve 6 to drive the valve 6 to rotate relative to the water pump 5, so that the passages 601 are opposite to the corresponding pipelines 501.
The first control unit 7 can control the detection mechanism 4 to detect, control the plugging device to plug or open the corresponding pipeline 501, and control the second control unit 8 to send a control signal to the valve element 6, so as to realize the rotation or stop of the valve element 6 relative to the water pump 5.
When testing, the first control unit 7 controls the plugging device to plug all the pipelines 501, and sends a signal to the second control unit 8 to make the passage 601 of the valve 6 controlled by the second control unit 8 and the pipelines 501 dislocated.
Then, the first control unit 7 controls the plugging device to open one of the pipelines 501, and the second control unit 8 controls the valve element 6 to rotate, so that the passage 601 of the valve element 6 is opposite to the pipeline 501 to be detected.
Finally, the inflating device 3 inflates the detecting mechanism 4, and then the first control unit 7 controls the detecting mechanism 4 to inflate the testing chamber 502, so that the gas in the testing chamber 502 can flow out of the water pump 5 through the pipeline 501 for detection, and thus the flow value can be measured through the detecting mechanism 4, and then the standard value is compared with the flow value, and whether the detected pipeline 501 is qualified or not is known.
Specifically, as shown in fig. 1, the plugging device includes a first electromagnetic valve 9, a telescopic cylinder 10, and a plugging portion 1001; the blocking part 1001 is arranged at the telescopic end of the telescopic cylinder 10, and the first control unit 7 is in communication connection with the first electromagnetic valve 9 so as to control the electromagnetic valve to change direction; a third air path 901 is formed between the air charging device 3 and an air inlet of the first electromagnetic valve 9, so as to charge air into the cavity of the telescopic cylinder 10 through the electromagnetic valve.
Preferably, the plugging device in this application comprises first solenoid valve 9, telescopic cylinder 10 and the shutoff portion 1001 of setting at the flexible end of telescopic cylinder 10, and first control unit 7 is connected with first solenoid valve 9 communication to can control first solenoid valve 9 and commutate, and then realize telescopic cylinder 10's flexible and drive shutoff portion 1001 and carry out the shutoff or open to pipeline 501.
Further preferably, in this application, the plugging device is disposed in one-to-one correspondence with the ports of the pipeline 501, the first solenoid valves 9 are disposed in one-to-one correspondence with the telescopic cylinders 10, the third air path 901 is connected between the inflator 3 and the first solenoid valves 9, the third air path 901 may also be an air pipe, and the air pipe is disposed in one-to-one correspondence with the first solenoid valves 9, so that the plurality of telescopic cylinders 10 can be inflated by one inflator 3, and the pipeline 501 can be detected one by the first solenoid valves 9 and the telescopic cylinders 10 disposed in one-to-one correspondence with the pipeline 501.
It should be added that the water pump 5 shown in the figures of the present application is provided with four pipelines 501, which is only one form of the water pump 5, and other forms with a corresponding number of water pumps 5 can be tested by using the detection system provided in the present application.
As shown in fig. 1, when one of the pipelines 501 needs to be opened for detection, the first control unit 7 controls the first electromagnetic valve 9 corresponding to the position of the pipeline 501 to be changed to the contracted position, the first electromagnetic valves 9 corresponding to the other pipelines 501 are still in the expanded position, the gas filled in the inflator 3 enters the rod cavity of the telescopic cylinder 10 through the first electromagnetic valve 9, and the gas in the rod-free cavity is discharged through the first electromagnetic valve 9, so that the recovery of the blocking portion 1001 is realized, and the pipeline 501 to be detected is opened.
It should be added that, in the present application, the pipelines 501 are checked one by one, when one of the pipelines 501 is opened by the plugging portion 1001, the plugging portions 1001 corresponding to the other pipelines 501 are plugged on the pipeline 501, and when one of the pipelines 501 is failed, the test is still continued until all of the pipelines 501 are tested, so that all of the pipelines 501 that are failed can be screened out for targeted maintenance.
As shown in fig. 1, the detection system provided by the present invention further includes a pressing mechanism, and the first control unit 7 is in communication connection with the pressing mechanism to control the pressing mechanism to press the water pump 5 onto the positioning device.
After positioning fixture 1 bears water pump 5 and forms test chamber 502, for improving test chamber 502's gas tightness, still be equipped with hold-down mechanism in this application, push down through first the control unit 7 control hold-down mechanism and can make water pump 5's the pump body and positioning fixture 1 contact with the laminating more closely to the cooperation improves sealed degree along the sealing member 2 of positioning fixture 1 circumference setting.
Specifically, as shown in fig. 1, the pressing mechanism includes a second electromagnetic valve 11 and a pressing cylinder 12, and a telescopic end of the pressing cylinder 12 is connected with a pressing part 1201; the first control unit 7 is in communication connection with the second electromagnetic valve 11, and a fourth air path 1101 is formed between the pressing cylinder 12 and the air charging device 3 to control the pressing part 1201 to contact with the water pump 5, so that the water pump 5 is pressed on the positioning device.
Preferably, the application provides a preferred embodiment, the pressing mechanism includes a second electromagnetic valve 11 and a pressing cylinder 12, and the first control unit 7 controls the second electromagnetic valve 11 to switch between the extended position and the retracted position, so that the pressing portion 1201 on the pressing cylinder 12 moves towards or away from the water pump 5, and the purpose of further pressing the water pump 5 on the positioning fixture 1 is achieved by the pressing portion 1201 formed by the telescopic end of the pressing cylinder 12.
The fourth air path 1101 in the present application may also be an air pipe, so that the inflator 3 can be connected to the second electromagnetic valve 11, and air can enter the pressing cylinder 12.
The hold-down mechanism in this application can be a plurality of, and sets up along water pump 5's circumference interval to can evenly exert pressure to water pump 5, make water pump 5 and positioning fixture 1 more stable and contact closely.
It should be noted that the direction of the arrow in fig. 1 of the present application is the direction of the force applied by the pressing mechanism to the water pump 5.
Further, as shown in fig. 1, the first control unit 7 is an MCU, the second control unit 8 is an ECU, and the inflator 3 is a pneumatic triple.
Because the water pump 5 in this application is mainly applied to the car, consequently, even when testing, also need simulate the state that water pump 5 is in the car operation to make the water pump 5 who accomplishes the test install the back, can make accurate reaction to the condition of car. Therefore, in the present application, the first Control unit 7 is an mcu (microcontroller unit) micro Control unit, and the second Control unit 8 is an ecu (electronic Control unit), which is also called a "traveling computer".
Because be in this application with the inside of gas filling water pump 5 to pipeline 501 to water pump 5 detects, but has pollutants such as a large amount of dust and impurity in the external gas, consequently, preferably, aerating device 3 in this application is pneumatic trigeminy piece, including air cleaner, relief pressure valve and oil mist ware, can provide the air supply after the purification filtration, thereby guarantee the cleanliness in the cavity of water pump 5 to a certain extent, avoid the test to produce the influence to water pump 5's use.
Fig. 2 is a flowchart of a method for detecting a pipe opening according to an embodiment of the present invention.
In addition, the invention also provides a method for detecting the opening degree of the pipeline 501, which applies the detection system and comprises the following steps: s100, calibrating a detection system by using a sample pump, and acquiring a standard flow value; s200, moving a water pump 5 to be tested to a positioning device, and inflating the test cavity 502 through an inflating device 3; step S300, adjusting the position of the valve element 6 relative to the water pump 5, enabling the passage 601 of the valve element 6 to be opposite to one of the pipelines 501 of the water pump 5, and enabling the plugging device to open the corresponding pipeline 501 to test the opening of the pipeline 501 to obtain a detection value; step S400, comparing the detected value with the standard flow value, if the detected value is smaller than the standard flow value, the detected pipeline 501 is qualified, rotating the valve 6 to enable the channel 601 and the rest pipelines 501 to be oppositely positioned for detection, and if the pipeline 501 larger than the standard flow value exists, the detected pipeline 501 is unqualified and the water pump 5 is unqualified.
In step S100, the sample pump is the water pump 5 that passes through after being detected by the coolant, and the value measured by the water pump 5 is a standard value, and the sample pump is combined with the detection system, so that the measurement device can be adjusted and calibrated, and the accuracy of the detection system can be improved.
In step S200, preferably, the detection mechanism 4 inflates the test chamber 502 in the test chamber 502 for 8 seconds, stabilizes for 8 seconds, and detects for 3 seconds, so as to obtain the opening flow data of one of the pipelines 501 of the detected water pump 5.
In step S300, the rotation of the valve element 6 and the corresponding opening of the blocking device are automatically adjusted and reacted by the first control unit 7 and the second control unit 8 without human intervention.
In step S400, after the detection system detects all the pipelines 501 of the detected water pump 5, the detection is stopped, and even if the first pipeline 501 fails, the test is continued, so that all the pipelines 501 of the water pump 5 can be screened.
Through the steps, the water pump 5 can be tested simply and quickly, and because the clean air source is filled in the pump body, convenience can be brought to subsequent transportation and use of the water pump 5.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A detection system is used for detecting a water pump pipeline and is characterized by comprising a positioning device, a plurality of plugging devices, an air charging device, a valve piece 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 inflating device and the detection mechanism, a second air path is formed between the detection mechanism and the test cavity, a passage is formed on the valve, the passage is communicated with the test cavity, and the passages can be respectively communicated with different pipelines of the water pump so as to enable the pipelines to be communicated with the test cavity;
the plugging devices are used for plugging the pipelines correspondingly and can open the corresponding pipelines one by one.
2. The detection system according to claim 1, wherein the positioning device comprises a positioning fixture on which the water pump is seated and with which the test chamber is formed.
3. The detection system according to claim 2, wherein a seal is provided at a position where the positioning jig contacts the water pump.
4. The detection system of claim 1, further comprising a control device comprising a first control unit and a second control unit;
the first control unit is respectively in communication connection with the detection mechanism, the second control unit and the plugging devices, and can control the plugging devices to open or close the pipeline;
the second control unit is in communication connection with the valve piece to drive the valve piece to rotate relative to the water pump, so that the passage and the corresponding pipeline are opposite.
5. The detection system according to claim 4, wherein each of the plurality of plugging devices includes a first solenoid valve, a telescopic cylinder, and a plugging portion;
the plugging part is arranged at the telescopic end of the telescopic cylinder, and the first control unit is in communication connection with the first electromagnetic valve so as to control the electromagnetic valve to reverse;
and a third air path is formed between the air charging device and the air inlet of the first electromagnetic valve so as to charge air in the cavity of the telescopic cylinder through the electromagnetic valve.
6. The detection system according to claim 5, wherein the plugging devices are disposed in one-to-one correspondence with ports of the pipeline, and the first electromagnetic valves are disposed in one-to-one correspondence with the telescopic cylinders.
7. The detection system according to claim 4, further comprising a pressing mechanism, wherein the first control unit is in communication with the pressing mechanism to control the pressing mechanism to press the water pump onto the positioning device.
8. The detection system according to claim 7, wherein the pressing mechanism comprises a second electromagnetic valve and a pressing cylinder, and a pressing part is connected to the telescopic end of the pressing cylinder;
the first control unit is in communication connection with the second electromagnetic valve, and a fourth air path is formed between the pressing cylinder and the air charging device to control the pressing part to be in contact with the water pump so that the water pump is pressed on the positioning device.
9. The detection system of claim 4, wherein the first control unit is an MCU, the second control unit is an ECU, and the inflation device is a pneumatic triplet.
10. A method for detecting the opening degree of a pipeline by using the detection system provided by any one of the claims 1 to 9, comprising the steps of:
s100, calibrating the detection system by using a sample pump, and acquiring a standard flow value;
s200, moving the water pump to be tested to the positioning device, and inflating the test cavity through the inflating device;
step S300, adjusting the position of the valve element relative to the water pump to ensure that the passage of the valve element is opposite to one of the pipelines of the water pump, and enabling the plugging device to open the corresponding pipeline so as to test the opening of the pipeline to obtain a detection value;
step S400, comparing the detection value with the standard flow value, if the detection value is smaller than the standard flow value, the detected pipeline is qualified, the valve rotates to enable the passage and the rest of pipelines to be opposite to each other for detection, and if the pipeline larger than the standard flow value exists, the detected pipeline is unqualified, and the water pump is unqualified.
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