CN117928840A - Integrated conduction and leakage detection device and method for fuel distribution pipe - Google Patents
Integrated conduction and leakage detection device and method for fuel distribution pipe Download PDFInfo
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- CN117928840A CN117928840A CN202410009927.5A CN202410009927A CN117928840A CN 117928840 A CN117928840 A CN 117928840A CN 202410009927 A CN202410009927 A CN 202410009927A CN 117928840 A CN117928840 A CN 117928840A
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- conduction
- detection module
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- 238000001514 detection method Methods 0.000 title claims abstract description 186
- 239000000446 fuel Substances 0.000 title claims abstract description 152
- 238000009826 distribution Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to the field of fuel distribution pipe detection, in particular to an integrated conduction and leakage detection device for a fuel distribution pipe. The workpiece fixing module is positioned in the leakage detection module and used for fixing the tested fuel distribution pipe. The conduction detection module is connected to the leakage detection module through the interconnection switching module. The leak detection module is connected to the fuel rail to block a portion of the openings in the fuel rail for continuity detection or to block all of the openings in the fuel rail. In the conduction detection, a test input air source is connected to a conduction detection module through an interconnection switching module. In leak detection, the working gas is driven into the fuel distribution pipe by connecting to the leak detection module through the interconnection switching module. The invention also includes methods. The invention combines conduction and leakage detection, saves equipment, can automatically detect, saves production beats and improves production efficiency.
Description
Technical Field
The invention relates to the field of fuel distribution pipe detection, in particular to an integrated conduction and leakage detection device and method for a fuel distribution pipe.
Background
In the fuel distributing pipe, the low pressure product is easy to be blocked by copper glue and foreign matter, so that conduction detection is needed to be added in the inspection procedure. Conduction detection needs to be carried out by additionally adding manpower, and extra tools and testing equipment are needed, so that the production beat is influenced.
Disclosure of Invention
The invention aims to provide an integrated conduction and leakage detection device for a fuel distribution pipe, which integrates conduction detection and the existing watertight detection device, and also provides a detection method using the device, so as to solve the problems in the prior art.
The invention provides an integrated conduction and leakage detection device for a fuel distribution pipe, which is characterized by comprising a test input air source, a conduction detection module, a leakage detection module, an interconnection switching module and a workpiece fixing module;
the workpiece fixing module is positioned in the leakage detection module and used for fixing the tested fuel distribution pipe; the conduction detection module is connected to the leakage detection module through the interconnection switching module and is used for conduction detection; the leakage detection module is connected to the fuel distribution pipe, and is used for plugging part of the openings on the fuel distribution pipe for conducting detection or plugging all the openings on the fuel distribution pipe for leakage detection;
and the test input air source is connected to the conduction detection module through the interconnection switching module in the conduction detection, is connected to the leakage detection module through the interconnection switching module in the leakage detection, and drives working gas to enter the fuel distribution pipe.
Further, the input air source comprises an air storage unit, a filter and a booster pump; the gas storage unit is connected to the booster pump through the filter; the filter is used for filtering impurities in the working gas; the booster pump is connected to the interconnection switching module for adjusting the pressure of the working gas to meet the leak detection requirements.
Further, the leakage detection module comprises a plug, a plug cylinder, a pressure head cylinder and a watertight box; the plug, the plug cylinder, the pressure head and the pressure head cylinder are all arranged in the watertight box; the plug cylinder is in driving connection with the plug; the plugs are matched with a plurality of openings on the fuel distribution pipe and are used for plugging the fuel distribution pipe in the leakage detection; the pressure head cylinder is in driving connection with the pressure head; and one end of the pressure head is connected to the interconnection switching module, and the other end of the pressure head is matched with a plurality of openings on the fuel distributing pipe and is used for guiding the working gas into the fuel distributing pipe after the fuel distributing pipe is blocked in the conduction detection and the leakage detection.
Further, the conduction detection module comprises a pressure regulating valve and a flowmeter; the pressure regulating valve is connected to the test input air source and is used for regulating the pressure of the working air to meet the requirements of the conduction detection; the flowmeter is connected to the pressure regulating valve at one end and connected to the interconnection switching module at the other end, and is used for evaluating whether the fuel distributing pipe is blocked in the conduction detection.
Further, the interconnection switching module comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve; the first electromagnetic valve is connected with the test input air source and the third electromagnetic valve and the fourth electromagnetic valve; the third solenoid valve and the fourth solenoid valve are further connected to the leak detection module; the second electromagnetic valve is connected with the conduction detection module and the third electromagnetic valve and the fourth electromagnetic valve;
The first electromagnetic valve and the second electromagnetic valve are used for selecting whether the working gas is led into the conduction detection module or not; the third electromagnetic valve and the fourth electromagnetic valve are used for being matched with the first electromagnetic valve and the second electromagnetic valve to finish switching, and the leakage detection module is not affected.
Further, the workpiece fixing module comprises a plurality of groups of fixing clamps; each group of fixing clamps corresponds to one fuel distributing pipe.
Further, the fixing clamp comprises a fixing cylinder and a clamping tool; the fixed cylinder is in driving connection with the clamping tool; the clamping tool is matched with the fuel distributing pipe, the fuel distributing pipe is clamped when the fixed cylinder acts, and the fuel distributing pipe is released when the fixed cylinder is released.
Further, the workpiece fixing module and the leakage detection module are combined into a whole to form a workpiece fixing and leakage detection module; the workpiece fixing and leakage detecting module comprises a plurality of groups of fixing clamps; each group of fixing clamps corresponds to one fuel distributing pipe; the workpiece fixing and leakage detecting module is used for fixing the fuel distributing pipe and sealing partial openings on the fuel distributing pipe, so that the conduction detection is simplified.
Further, the workpiece fixing and leakage detecting module comprises a plug, a plug cylinder, a pressure head, a fixing clamp and a watertight box;
the plug cylinder is in driving connection with the plug; the plugs are matched with a plurality of openings on the fuel distribution pipe and are used for plugging the fuel distribution pipe in the leakage detection;
The fixed clamp comprises a clamping tool and a fixed cylinder; the fixed cylinder is simultaneously in driving connection with the pressure head and the clamping tool; one end of the pressure head is connected to the interconnection switching module, and the other end of the pressure head is matched with a plurality of openings on the fuel distributing pipe and is used for guiding the working gas into the fuel distributing pipe after the fuel distributing pipe is blocked in the conduction detection and the leakage detection; the clamping tool is matched with the fuel distributing pipe, the fuel distributing pipe is clamped when the fixed cylinder acts, and the fuel distributing pipe is released when the fixed cylinder is released.
The invention also discloses a detection method using the integrated conduction and leakage detection device for the fuel distribution pipe, which is characterized by comprising the following steps:
step S100, installing and fixing the fuel distributing pipe by using the workpiece fixing module, and connecting the leakage detecting module to the fuel distributing pipe;
Step S200, adjusting the interconnection switching module, connecting the conduction detection module to the leakage detection module, and then connecting the test input air source to the conduction detection module;
Step S300, conducting detection is carried out on the fuel distribution pipe by utilizing the conducting detection module and the leakage detection module; if the conduction detection fails, marking the fuel distribution pipe as unqualified, and entering step S600; otherwise, enter step S400;
Step S400, adjusting the connection mode of the leakage detection module and the fuel distribution pipe; then, the interconnection switching module is adjusted, and the test input air source is connected to the leakage detection module;
Step S500, utilizing the leakage detection module to detect leakage of the fuel distribution pipe; if the leak detection fails, marking the fuel distribution pipe as unqualified, otherwise marking the fuel distribution pipe as qualified;
and S600, the workpiece fixing module releases the fuel distributing pipe and removes the fuel distributing pipe.
Compared with the prior art, the integrated conduction and leakage detection device for the fuel distribution pipe has the remarkable characteristics that the device gets rid of the directional thinking of a special machine in the past, combines the most extensive leakage detection and conduction detection in a workshop, automatically detects the leakage through electrical control, directly saves the occupied space of one device, further ensures that the device accords with automation, saves production beats and improves the production efficiency of enterprises.
Drawings
FIG. 1 is a system block diagram of a preferred embodiment of an integrated continuity and leak detection device for a fuel rail in accordance with the present invention;
FIG. 2 is a block diagram of a preferred embodiment of an integrated continuity and leak detection device for a fuel rail in accordance with the present invention;
FIG. 3 is a schematic view of the construction of a tool holding module in a preferred embodiment of the integrated pass-through and leak detection apparatus for a fuel rail of the present invention;
FIG. 4 is a flow chart of a preferred embodiment of the integrated turn-on and leak detection method for a fuel rail of the present invention.
Wherein,
100-Of a test input air source, 200-of a leakage detection module, 300-of a conduction detection module, 400-of an interconnection switching module, 500-of a workpiece fixing module and 600-of a fuel distribution pipe;
101-a gas storage unit, 102-a filter and 103-a booster pump;
201-plug cylinder, 202-pressure head, 203-pressure head cylinder, 204-watertight box;
301-pressure regulating valve, 302-flowmeter;
401-first solenoid valve, 402-second solenoid valve, 403-third solenoid valve, 404-fourth solenoid valve;
510-fixed clamps, 511-fixed cylinders and 512-clamping tools.
Detailed Description
The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.
Referring to fig. 1, 2 and 3, an integrated conduction and leakage detection apparatus for a fuel rail is disclosed, and a preferred embodiment of the apparatus includes a test input gas source 100, a leakage detection module 200, a conduction detection module 300, an interconnection switching module 400 and a workpiece fixing module 500.
Conduction detection is completed by the combination of the conduction detection module 300 and the leakage detection module 200, and the principle is as follows: the pressurized working gas is input to one end of the fuel distribution pipe 600 to be measured, and then the real-time flow rate of the gas is read. If there is a non-unobstructed area on the fuel rail 600, the flow rate will drop, and it is determined that the fuel rail 600 is clogged, and the conduction detection will not pass.
Leak detection is accomplished solely by leak detection module 200, which is based on the principle: a pressurized working gas is supplied to one end of the fuel rail 600 to be measured while blocking all openings in the fuel rail 600, and the entire fuel rail 600 is placed in the watertight box 204. If there is a leak in the fuel rail 600, air bubbles may appear in the watertight case 204, and it is determined that the leak detection is not passed.
The fuel dispensing pipe 600 is secured by the workpiece securing module 500, which workpiece securing module 500 itself is also mounted and secured within the watertight box 204 in the leak detection module 200. To improve the detection efficiency, the workpiece fixing module 500 includes a plurality of groups of fixing jigs 510, and each group of fixing jigs 510 corresponds to one fuel distribution pipe one by one, for independently fixing one fuel distribution pipe 600. The fixing clamp 510 is composed of a fixing cylinder 511 and a clamping tool 512. The shape of the clamping tool 512 is adapted to the shape of the fuel distributing pipe 600, and the fuel distributing pipe 600 is attached and clamped under the driving of the fixed cylinder 511. After the detection is completed, the fixed cylinder 511 is released and the worker can remove the fuel dispensing pipe. In this embodiment, the workpiece fixture module 500 includes two sets of fixtures 510 that can simultaneously inspect two fuel rail 600 at a time.
The test input gas source 100 includes a gas storage unit 101, a filter 102, and a booster pump 103. The gas storage unit 101 supplies the working gas for leak or conduction detection. At the outlet of the gas storage unit 101, a booster pump 103 is provided for raising the gas pressure to 0.8 mpa, thereby satisfying the demands of on-detection and leak detection. Between the gas storage unit 101 and the booster pump 103, a filter 102 is provided to filter out impurities in the working gas, preventing damage to the fuel distribution pipe 600. The high-pressure working gas from the booster pump 103 enters the conduction detection module 300 or the leak detection module 200 through the interconnection switching module 400, thereby completing conduction detection or leak detection as required.
The leak detection module 200 includes a plug, a plug cylinder 201, a pressure head 202, a pressure head cylinder 203, and a watertight box 204. Pressure head 202 is connected to test input gas source 100 through interconnect switch module 400, which is driven by pressure head cylinder 203. In the conduction detection or the leakage detection, the opening of the fuel distributing pipe is partially blocked. High pressure working gas from test input gas source 100 enters fuel rail 600 through pressure head 202 in the opening blocked by pressure head 202. While the plug is not connected to the test input gas source 100. The plug is driven by the plug cylinder 201 to block the remaining openings of the fuel rail 600 except for the corresponding openings of the pressure head 202 during leak detection. The plugs, plug cylinders 201, pressure heads 202, 203 are all mounted in watertight box 204, which corresponds to the position of the fixing jigs 510 in the workpiece fixing module 500, and are aligned with the fixed fuel distribution pipes 600. The number of plugs, plug cylinders 201, pressure heads 202, and pressure head cylinders 203 corresponds to the number of sleeves of the fixing jigs 510, which is 2 sleeves in this embodiment.
In other embodiments, the workpiece fixture module 500 may be integrated with the leak detection module 200 to form a workpiece fixture and leak detection module. In such designs, the pressure head cylinder 203 is no longer provided in the workpiece holding and leak detection module, and both the clamping tool 512 and the pressure head 202 are driven by the holding cylinder 511. When the fixed cylinder 511 acts, the clamping tool 512 is attached to and clamps the fixed fuel distribution pipe 600, and the pressure head 202 completes the blocking of the opening of the upper part of the fuel distribution pipe 600, so that the steps can be simplified, and the conduction detection can be directly started. After the detection is completed, the fixed cylinder 511 is released, the clamping tool 512 and the pressure head 202 are simultaneously released, and a worker can take away the fuel distribution pipe.
The conduction detection module 300 includes a pressure regulating valve 301 and a flow meter 302. One end of the pressure regulating valve 301 is connected to the test input air source 100 through the interconnection switching module 400, and the other end is connected to the flowmeter 302. The flow meter 302 is again connected to the continuity check module 300 through the interconnection switching module 400 and finally to the fuel rail 600. The pressure regulating valve 301 is used for reducing the output pressure of the booster pump 103 to 0.3 mpa, thereby meeting the requirement of conduction detection.
The interconnection switching module 400 is composed of four solenoid valves and programmable logic devices, namely a first solenoid valve 401, a second solenoid valve 402, a third solenoid valve 403, and a fourth solenoid valve 404. The programmable logic device is used to switch the test mode and direct the working gas in the test input gas supply 100 to the fuel rail 600 to complete the test. The outlet of the booster pump 103 is divided into two paths, and the first solenoid valve 401 and the inlet of the conduction detection module 300 are connected to each other. The outlet of the continuity detection module 300 is connected to the inlet of the second solenoid valve 402. The outlets of the first solenoid valve 401 and the second solenoid valve 402 are then connected to both the inlet of the third solenoid valve 403 and the inlet of the fourth solenoid valve 404. The outlets of the third solenoid valve 403 and the fourth solenoid valve 404 are connected to two different sets of pressure heads 202, respectively. The programmable logic device is connected to the four electromagnetic valves, and controls the on-off of the four electromagnetic valves according to the test requirement to finish the conduction detection or the leakage detection.
Referring to fig. 4, the present invention further provides a detection method using the above integrated conduction and leakage detection device for a fuel distribution pipe, comprising the steps of:
Step S100, fixing the fuel distributing pipe by using the workpiece fixing module, and connecting the leakage detecting module to the fuel distributing pipe.
And placing a plurality of fuel distributing pipes into the watertight box, starting the fixed cylinder, and fixing the fuel distributing pipes by using the clamping tool. The pressure head cylinder is then activated so that the pressure head rests against a portion of the opening of the fuel rail.
In the embodiment using the tool fixing and leak detection module, the fixing of the fuel dispensing tube and the pressure head connection of the clamping tool can be accomplished in one step by activating the fixing cylinder.
Step S200, the interconnection switching module is adjusted, the conduction detection module is connected to the leakage detection module, and then the test input air source is connected to the conduction detection module.
And closing the first electromagnetic valve, and opening the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve through the programmable logic device. At this time, because the first electromagnetic valve is closed, the working gas can only enter the conduction detection module, pass through the second electromagnetic valve, and enter the fuel distribution pipe through the third electromagnetic valve and the fourth electromagnetic valve.
Specifically, the high-pressure gas of 0.8 mpa flows through the pressure regulating valve to become gas of 0.3 mpa, and then flows through the second solenoid valve, through the third solenoid valve or the fourth solenoid valve, and then through the pressure head to the different fuel distribution pipe.
And step S300, conducting detection is carried out on the fuel distribution pipe by utilizing a conducting detection module and a leakage detection module. If the conduction detection fails, marking the fuel distribution pipe as unqualified, and entering step S600; otherwise, enter step S400;
Based on the readings of the flow meter 302, a determination is made as to whether the fuel rail is plugged. If the flow is lower than the standard, the blocking exists, the test fails, and the alarm is given and marked as unqualified.
Step S400, adjusting the connection mode between the leak detection module and the fuel distribution pipe. Then, the interconnection switching module is adjusted to connect the test input air source to the leak detection module.
And through the programmable logic device, the third electromagnetic valve and the fourth electromagnetic valve are closed first, and the connection between the leakage detection module and other modules is disconnected. And then starting the plug cylinder to enable the plug to be attached to the residual outlet of the fuel distribution pipe. Finally, the second electromagnetic valve is closed, and the first electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are opened through the programmable logic device. At this time, the second electromagnetic valve is closed, so that the working gas cannot enter the conduction detection module, and only passes through the first electromagnetic valve directly, and then enters the fuel distribution pipe through the third electromagnetic valve and the fourth electromagnetic valve.
Specifically, after passing through the first electromagnetic valve, the high-pressure gas of 0.8 megapascal flows through the third electromagnetic valve and the fourth electromagnetic valve respectively, and enters different fuel distribution pipes through the pressure head.
Step S500, utilizing a leakage detection module to detect leakage of the fuel distribution pipe; if the leakage detection fails, marking the fuel distribution pipe as unqualified, otherwise marking the fuel distribution pipe as qualified;
And filling water into the watertight box. And judging the leakage detection result by observing whether bubbles exist in the watertight box. If the fuel distribution pipe is in a bubble state, the leakage detection fails, and the fuel distribution pipe is marked as unqualified.
In step S600, the workpiece securing module releases the fuel rail.
And through the programmable logic device, the third electromagnetic valve and the fourth electromagnetic valve are closed first, and the connection between the leakage detection module and other modules is disconnected. After the water in the watertight box is emptied, the pressure head cylinder and the plug cylinder are released, the fixed cylinder is finally released, the fuel distribution pipe is taken down, and detection is completed.
In the embodiment using the workpiece fixing and leakage detecting module, the plug cylinder is released first, then the fixing cylinder is released, and the releasing of the clamping tool and the pressure head can be completed in one step, so that the fuel distributing pipe can be directly taken down.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.
Claims (10)
1. The integrated conduction and leakage detection device for the fuel distribution pipe is characterized by comprising a test input air source, a conduction detection module, a leakage detection module, an interconnection switching module and a workpiece fixing module;
the workpiece fixing module is positioned in the leakage detection module and used for fixing the tested fuel distribution pipe; the conduction detection module is connected to the leakage detection module through the interconnection switching module and is used for conduction detection; the leakage detection module is connected to the fuel distribution pipe, and is used for plugging part of the openings on the fuel distribution pipe for conducting detection or plugging all the openings on the fuel distribution pipe for leakage detection;
and the test input air source is connected to the conduction detection module through the interconnection switching module in the conduction detection, is connected to the leakage detection module through the interconnection switching module in the leakage detection, and drives working gas to enter the fuel distribution pipe.
2. The integrated turn-on and leak detection apparatus for a fuel rail of claim 1, wherein the input air supply comprises an air reservoir unit, a filter, and a booster pump; the gas storage unit is connected to the booster pump through the filter; the filter is used for filtering impurities in the working gas; the booster pump is connected to the interconnection switching module for adjusting the pressure of the working gas to meet the leak detection requirements.
3. The integrated turn-on and leak detection apparatus for a fuel rail of claim 1, wherein the leak detection module comprises a plug, a plug cylinder, a pressure head cylinder, and a watertight box; the plug, the plug cylinder, the pressure head and the pressure head cylinder are all arranged in the watertight box; the plug cylinder is in driving connection with the plug; the plugs are matched with a plurality of openings on the fuel distribution pipe and are used for plugging the fuel distribution pipe in the leakage detection; the pressure head cylinder is in driving connection with the pressure head; and one end of the pressure head is connected to the interconnection switching module, and the other end of the pressure head is matched with a plurality of openings on the fuel distributing pipe and is used for guiding the working gas into the fuel distributing pipe after the fuel distributing pipe is blocked in the conduction detection and the leakage detection.
4. The integrated continuity and leak detection device for a fuel rail of claim 1, wherein said continuity detection module comprises a pressure regulating valve and a flow meter; the pressure regulating valve is connected to the test input air source and is used for regulating the pressure of the working air to meet the requirements of the conduction detection; the flowmeter is connected to the pressure regulating valve at one end and connected to the interconnection switching module at the other end, and is used for evaluating whether the fuel distributing pipe is blocked in the conduction detection.
5. The integrated turn-on and leak detection apparatus for a fuel rail of claim 1, wherein the interconnect switch module comprises a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve; the first electromagnetic valve is connected with the test input air source and the third electromagnetic valve and the fourth electromagnetic valve; the third solenoid valve and the fourth solenoid valve are further connected to the leak detection module; the second electromagnetic valve is connected with the conduction detection module and the third electromagnetic valve and the fourth electromagnetic valve;
The first electromagnetic valve and the second electromagnetic valve are used for selecting whether the working gas is led into the conduction detection module or not; the third electromagnetic valve and the fourth electromagnetic valve are used for being matched with the first electromagnetic valve and the second electromagnetic valve to finish switching, and the leakage detection module is not affected.
6. The integrated continuity and leak detection device for a fuel rail of claim 1, wherein said workpiece fixture module comprises a plurality of sets of fixtures; each group of fixing clamps corresponds to one fuel distributing pipe.
7. The integrated continuity and leak detection device for a fuel rail of claim 6, wherein the stationary fixture comprises a stationary cylinder and a clamping fixture; the fixed cylinder is in driving connection with the clamping tool; the clamping tool is matched with the fuel distributing pipe, the fuel distributing pipe is clamped when the fixed cylinder acts, and the fuel distributing pipe is released when the fixed cylinder is released.
8. The integrated pass-through and leak detection apparatus for a fuel rail of claim 1, wherein the workpiece securing module is integral with the leak detection module to form a workpiece securing and leak detection module; the workpiece fixing and leakage detecting module comprises a plurality of groups of fixing clamps; each group of fixing clamps corresponds to one fuel distributing pipe; the workpiece fixing and leakage detecting module is used for fixing the fuel distributing pipe and sealing partial openings on the fuel distributing pipe, so that the conduction detection is simplified.
9. The integrated pass-through and leak detection apparatus for a fuel rail of claim 1, wherein the workpiece securing and leak detection module comprises a plug, a plug cylinder, a pressure head, a securing clamp, and a watertight box;
the plug cylinder is in driving connection with the plug; the plugs are matched with a plurality of openings on the fuel distribution pipe and are used for plugging the fuel distribution pipe in the leakage detection;
The fixed clamp comprises a clamping tool and a fixed cylinder; the fixed cylinder is simultaneously in driving connection with the pressure head and the clamping tool; one end of the pressure head is connected to the interconnection switching module, and the other end of the pressure head is matched with a plurality of openings on the fuel distributing pipe and is used for guiding the working gas into the fuel distributing pipe after the fuel distributing pipe is blocked in the conduction detection and the leakage detection; the clamping tool is matched with the fuel distributing pipe, the fuel distributing pipe is clamped when the fixed cylinder acts, and the fuel distributing pipe is released when the fixed cylinder is released.
10. A detection method using the integrated conduction and leakage detection apparatus for a fuel rail of claim 1, comprising the steps of:
step S100, installing and fixing the fuel distributing pipe by using the workpiece fixing module, and connecting the leakage detecting module to the fuel distributing pipe;
Step S200, adjusting the interconnection switching module, connecting the conduction detection module to the leakage detection module, and then connecting the test input air source to the conduction detection module;
Step S300, conducting detection is carried out on the fuel distribution pipe by utilizing the conducting detection module and the leakage detection module; if the conduction detection fails, marking the fuel distribution pipe as unqualified, and entering step S600; otherwise, enter step S400;
Step S400, adjusting the connection mode of the leakage detection module and the fuel distribution pipe; then, the interconnection switching module is adjusted, and the test input air source is connected to the leakage detection module;
Step S500, utilizing the leakage detection module to detect leakage of the fuel distribution pipe; if the leak detection fails, marking the fuel distribution pipe as unqualified, otherwise marking the fuel distribution pipe as qualified;
and S600, the workpiece fixing module releases the fuel distributing pipe and removes the fuel distributing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410009927.5A CN117928840A (en) | 2024-01-04 | 2024-01-04 | Integrated conduction and leakage detection device and method for fuel distribution pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410009927.5A CN117928840A (en) | 2024-01-04 | 2024-01-04 | Integrated conduction and leakage detection device and method for fuel distribution pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117928840A true CN117928840A (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410009927.5A Pending CN117928840A (en) | 2024-01-04 | 2024-01-04 | Integrated conduction and leakage detection device and method for fuel distribution pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117928840A (en) |
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2024
- 2024-01-04 CN CN202410009927.5A patent/CN117928840A/en active Pending
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