CN202119602U - Air tightness detection machine for automobile exhaust pipe - Google Patents

Air tightness detection machine for automobile exhaust pipe Download PDF

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Publication number
CN202119602U
CN202119602U CN2011202119661U CN201120211966U CN202119602U CN 202119602 U CN202119602 U CN 202119602U CN 2011202119661 U CN2011202119661 U CN 2011202119661U CN 201120211966 U CN201120211966 U CN 201120211966U CN 202119602 U CN202119602 U CN 202119602U
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CN
China
Prior art keywords
solenoid valve
gas
interface
workpiece
exhaust pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011202119661U
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Chinese (zh)
Inventor
田波
刘华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Evershine Automotive Component Co Ltd
Original Assignee
Wuhu Evershine Automotive Component Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhu Evershine Automotive Component Co Ltd filed Critical Wuhu Evershine Automotive Component Co Ltd
Priority to CN2011202119661U priority Critical patent/CN202119602U/en
Application granted granted Critical
Publication of CN202119602U publication Critical patent/CN202119602U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an air tightness detection machine for an automobile exhaust pipe, which is characterized in that a programmable logic controller (PLC) serves as a control core of the air tightness detection machine. The air tightness detection machine is respectively connected to a clamping electromagnetic valve, an air plugging electromagnetic valve, a workpiece air inlet electromagnetic valve and an exhaust unloading electromagnetic valve in a controlled mode through the PLC input module. The clamping electromagnetic valve, the air plugging electromagnetic valve, the workpiece air inlet electromagnetic valve and the exhaust unloading electromagnetic valve are respectively connected to corresponding external pneumatic executive components. The PLC receives pressure and flow data acquired by a pressure sensor and a flow sensor through a PLC input module. The air tightness detection machine can meet requirements of high-frequency air tightness detection under complicated site environment, and is high in detection efficiency of one-key operation, simple in structure and easy to maintain.

Description

A kind of airtight machines that is used for automobile exhaust pipe
Technical field
The utility model relates to the detection of automobile exhaust pipe, particularly a kind of airtight machines that is used for automobile exhaust pipe.
Background technology
The gas outlet of automobile is a vitals of motor car engine, and it all plays important effect for the operate as normal and the treatment of waste gas of engine.Whether qualified the sealing property of automobile exhaust pipe then be to detect its important indicator, therefore all will carry out airtight detection for each automobile exhaust pipe and just can come into operation.
At present; Major part be used for automobile exhaust pipe the too instrumentation of airtight detecting instrument instrument, cost is higher, the construction cycle is longer; Adaptive faculty is relatively poor when the site environment of complicacy is used for higher frequency and detects, and can't satisfy the detection requirement of producer for the automobile exhaust pipe air-tightness fully.
A kind of airtight detection of frequent that can satisfy under the complicated site environment is provided, and the high airtight machines of detection efficiency is the problem that prior art need solve.
The utility model content
The utility model technical matters to be solved is, a kind of airtight machines that is used for automobile exhaust pipe is provided, and makes it can satisfy the requirement of the airtight detection of frequent under the complicated site environment.
For solving the problems of the technologies described above; The technical scheme of the utility model is; A kind of airtight machines that is used for automobile exhaust pipe; It is characterized in that: described airtight machines is the control core with PLC, and the output module of PLC is operatively connected to respectively and clamps solenoid valve, gas shutoff solenoid valve, workpiece and go into pneumoelectric magnet valve, exhaust off-load solenoid valve, clamps that solenoid valve, gas shutoff solenoid valve, workpiece are gone into the pneumoelectric magnet valve, exhaust off-load solenoid valve is connected respectively to the external pneumatic executive component corresponding with it; Pressure, data on flows that PLC collects through its load module reception pressure transducer, flow sensor; Control the clamping solenoid valve respectively through PLC and clamp gas outlet to be checked; The gas shutoff solenoid valve is blocked the air inlet/outlet of gas outlet; Workpiece is gone into pneumoelectric magnet valve injecting gas in the gas outlet, and the data such as air pressure, gas flow of gathering gas outlet judge whether the air-tightness of gas outlet is qualified.
Described airtight machines be provided with clamp solenoid valve start interface inboard with clamp that solenoid valve is connected, gas shutoff solenoid valve pneumatic interface inboardly is connected with the gas shutoff solenoid valve, workpiece is gone into gas interface inboard and gone into workpiece that the pneumoelectric magnet valve is connected, workpiece exhaust off-load interface inboard is connected with exhaust off-load solenoid valve; The outside that clamping solenoid valve pneumatic interface, gas shutoff solenoid valve pneumatic interface, workpiece are gone into gas interface, workpiece exhaust off-load interface all is connected with each external pneumatic executive component through tracheae; Thereby guaranteed the separate of airtight machines and each external pneumatic executive component, can satisfy the demand that detects different product through changing the different external pneumatic apparatus like this.
Described airtight machines is provided with gas source interface; Gas source interface is connected respectively to and clamps solenoid valve, gas shutoff solenoid valve, workpiece and go into to insert respectively behind the pneumoelectric magnet valve again and clamp solenoid valve pneumatic interface, gas shutoff solenoid valve pneumatic interface, workpiece and go into the gas interface, for each external pneumatic executive component provides power.
Described gas source interface is linked into high pressurized gas, for whole airtight machines provides power.
Described gas source interface place is provided with the source of the gas filtrator, thereby gas is filtered, and guarantees airtight machines operate as normal.
Described gas source interface and workpiece go between the pneumoelectric magnet valve to be provided with reduction valve; Be provided with pressure regulator valve between gas source interface and clamping solenoid valve, the gas shutoff solenoid valve.
Described PLC input/output module adopts the wiring of the single-ended shielding mode of connection, with the on-the-spot noise signal of shield detection, strengthens its antijamming capability.
Described airtight machines is provided with pressure digital display, gas leakage flow digital display, pilot lamp, start button, scram button, makes operating personnel can control and monitor the detection case of gas outlet to be checked through these control knobs and data presentation lamp.
A kind of airtight machines that is used for automobile exhaust pipe, owing to adopt said structure, high, simple in structure being easy to of the airtight detection of frequent, operating in a key detection efficiency that this airtight detection function satisfies under the complicated site environment safeguarded.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation;
Fig. 1 is a kind of fundamental diagram that is used for the airtight machines of automobile exhaust pipe of the utility model;
Fig. 2 is a kind of structural representation that is used for the airtight machines of automobile exhaust pipe of the utility model;
Fig. 3 is a kind of main body circuit diagram that is used for the airtight machines of automobile exhaust pipe of the utility model;
Fig. 4 is a kind of PLC input/output module circuit diagram that is used for the airtight machines of automobile exhaust pipe of the utility model;
In Fig. 1-4,1, clamp solenoid valve; 2, gas shutoff solenoid valve; 3, workpiece is gone into the pneumoelectric magnet valve; 4, pressure transducer; 5, flow sensor; 6, clamp solenoid valve and start interface; 7, gas shutoff solenoid valve pneumatic interface; 8, workpiece is gone into the gas interface; 9, workpiece exhaust off-load interface; 10, gas source interface; 11, source of the gas filtrator; 12, reduction valve; 13, pressure regulator valve; 14, pressure digital display; 15, gas leakage flow digital display; 16, pilot lamp; 17, start button; 18, scram button; 19, exhaust off-load solenoid valve.
Embodiment
Shown in Fig. 1-4; The utility model clamps solenoid valve 1, gas shutoff solenoid valve 2, workpiece and goes into pneumoelectric magnet valve 3, exhaust off-load solenoid valve 19 for the output module through PLC is operatively connected to respectively, clamp that solenoid valve 1, gas shutoff solenoid valve 2, workpiece are gone into pneumoelectric magnet valve 3, exhaust off-load solenoid valve 19 is connected respectively to the external pneumatic executive component corresponding with it; Pressure, data on flows that PLC load module reception pressure transducer 4, flow sensor 5 collect; Control clamping solenoid valve 1 respectively through PLC and clamp gas outlet to be checked; Gas shutoff solenoid valve 2 is blocked the air inlet/outlet of gas outlet; Workpiece is gone into pneumoelectric magnet valve 3 injecting gas in the gas outlets, and the data such as air pressure, gas flow of gathering gas outlet judge whether the air-tightness of gas outlet is qualified.
Airtight machines be provided with clamp solenoid valve start interface 6 inboard with clamp that solenoid valve 1 is connected, gas shutoff solenoid valve pneumatic interface 7 inboardly is connected with gas shutoff solenoid valve 2, workpiece is gone into gas interface 8 inboards and gone into workpiece that pneumoelectric magnet valve 3 is connected, workpiece exhaust off-load interface 9 inboards are connected with exhaust off-load solenoid valve 19; The outside that clamping solenoid valve pneumatic interface 6, gas shutoff solenoid valve pneumatic interface 7, workpiece are gone into gas interface 8, workpiece exhaust off-load interface 9, exhaust off-load solenoid valve 19 all is connected with each external pneumatic executive component through tracheae; Thereby guaranteed the separate of airtight machines and each external pneumatic executive component, can satisfy the demand that detects different product through changing the different external pneumatic apparatus like this.
Also be provided with gas source interface 10 on the airtight machines simultaneously; Gas source interface 10 is connected respectively to and clamps solenoid valve 1, gas shutoff solenoid valve 2, workpiece and go into to insert respectively behind the pneumoelectric magnet valve 3 again and clamp solenoid valve pneumatic interface 6, gas shutoff solenoid valve pneumatic interface 7, workpiece and go into gas interface 8, for each external pneumatic executive component provides power.Gas source interface 10 is linked into high pressurized gas, for whole airtight machines provides power.
Gas source interface 10 places are provided with source of the gas filtrator 11, thereby gas is filtered, and guarantee airtight machines operate as normal.Gas source interface 10 and workpiece are gone into 3 of pneumoelectric magnet valve and are provided with reduction valve 12; Be provided with pressure regulator valve 13 between gas source interface 10 and clamping solenoid valve 1, the gas shutoff solenoid valve 2.
Airtight machines is provided with pressure digital display 14, gas leakage flow digital display 15, pilot lamp 16, start button 17, scram button 18, makes operating personnel can control and monitor the detection case of gas outlet to be checked through these control knobs and data presentation lamp
The utility model is to control core with PLC, controls pressure gas air inflow in the workpiece to be detected, pressure gas is carried out pressurize processing, the setting of gas leakage flow limit value, the setting of compression pressure limit value, exhaust and the action of monitor station frock, testing process wrong way alarm and the processing of testing result visualization procedure; Pressure transducer and flow sensor carry out exchanges data with PLC respectively, and after reaching the air pressure of setting in the workpiece to be detected, PLC carries out time-delay pressurize handling procedure, the sealing property index of on-line monitoring measured workpiece.
The utility model at first according to on-the-spot technological parameter standard setting detected pressures value and gas leakage flow value, is correctly put seized workpiece on the monitor station frock, report to the police otherwise detection system starts mistake proofing automatically; Press detection start button 17 after correctly putting measured workpiece, clamping solenoid valve 1 coil gets electric, clamps cylinder accordingly and carries out workpiece clamping action; Gas shutoff solenoid valve 2 coils get electricly behind the time-delay 300ms, and corresponding gas shutoff cylinder is carried out stifled workpiece gas port action, behind the time-delay 300ms; Workpiece is gone into pneumoelectric magnet valve 3 coils and is got the electric valve of opening, and pressure gas gets in the workpiece, and this moment, PLC carried out the pressurize program; After the gaseous tension in the workpiece reached the pressure of pressure transducer 4 settings, PLC carries out time-delay pressurize program, and was constant to guarantee workpiece internal pressure to be detected; At the gas leakage flow of constant pressure state down-off sensor 5 online detection measured workpieces, as under set pressure, the gas leakage flow surpasses the setting value that technological parameter is demarcated; Then the sealing of measured workpiece is defective, representes that accordingly underproof pilot lamp 16 is bright, otherwise representes that qualified pilot lamp 16 is bright; Detection system was got back to initial state to be checked after detection finished, and waited for next time and detecting.In whole testing process; Air pressure and flow are shown to the operator through pressure digital display 14 and gas leakage flow digital display 15 respectively; The one-key operation of whole operation process, handling safety is reliable, presses scram button 18 when running into urgent emergency situations; Detect control system and get back to initial state to be checked equally, wait for next time and detecting.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as the various improvement of having adopted the utility model technical scheme to carry out; Or directly apply to other occasion without improvement, all within the protection domain of the utility model.

Claims (8)

1. airtight machines that is used for automobile exhaust pipe; It is characterized in that: described airtight machines is the control core with PLC; The output module of PLC is operatively connected to respectively and clamps solenoid valve (1), gas shutoff solenoid valve (2), workpiece and go into pneumoelectric magnet valve (3), exhaust off-load solenoid valve (19), clamps that solenoid valve (1), gas shutoff solenoid valve (2), workpiece are gone into pneumoelectric magnet valve (3), exhaust off-load solenoid valve (19) is connected respectively to its corresponding external pneumatic executive component; Pressure, gas flow data that PLC collects through its load module reception pressure transducer (4), flow sensor (5).
2. a kind of airtight machines that is used for automobile exhaust pipe according to claim 1 is characterized in that: described airtight machines be provided with clamp solenoid valve start interface (6) inboard with clamp that solenoid valve (1) is connected, gas shutoff solenoid valve pneumatic interface (7) inboardly is connected with gas shutoff solenoid valve (2), workpiece is gone into gas interface (8) inboard and gone into workpiece that pneumoelectric magnet valve (3) is connected, workpiece exhaust off-load interface (9) inboard is connected with exhaust off-load solenoid valve (19); The outside that clamping solenoid valve pneumatic interface (6), gas shutoff solenoid valve pneumatic interface (7), workpiece are gone into gas interface (8), workpiece exhaust off-load interface (9) all is connected with each external pneumatic executive component through tracheae.
3. a kind of airtight machines that is used for automobile exhaust pipe according to claim 2; It is characterized in that: described airtight machines is provided with gas source interface (10), and gas source interface (10) is connected respectively to and clamps solenoid valve (1), gas shutoff solenoid valve (2), workpiece and go into to insert respectively behind the pneumoelectric magnet valve (3) again and clamp solenoid valve pneumatic interface (6), gas shutoff solenoid valve pneumatic interface (7), workpiece and go into gas interface (8).
4. according to claim 1 or 3 described a kind of airtight machines that are used for automobile exhaust pipe, it is characterized in that: described gas source interface (10) is linked into high pressurized gas.
5. according to claim 1 or 3 described a kind of airtight machines that are used for automobile exhaust pipe, it is characterized in that: described gas source interface (10) locates to be provided with source of the gas filtrator (11).
6. according to claim 1 or 3 described a kind of airtight machines that are used for automobile exhaust pipe, it is characterized in that: described gas source interface (10) and workpiece go into to be provided with reduction valve (13) between the pneumoelectric magnet valve (3); Be provided with pressure regulator valve (14) between gas source interface (10) and clamping solenoid valve (1), the gas shutoff solenoid valve (2).
7. a kind of airtight machines that is used for automobile exhaust pipe according to claim 1, it is characterized in that: described PLC input/output module adopts the wiring of the single-ended shielding mode of connection.
8. a kind of airtight machines that is used for automobile exhaust pipe according to claim 1 is characterized in that: described airtight machines is provided with pressure digital display (14), gas leakage flow digital display (15), pilot lamp (16), start button (17), scram button (18).
CN2011202119661U 2011-06-22 2011-06-22 Air tightness detection machine for automobile exhaust pipe Expired - Fee Related CN202119602U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202119661U CN202119602U (en) 2011-06-22 2011-06-22 Air tightness detection machine for automobile exhaust pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202119661U CN202119602U (en) 2011-06-22 2011-06-22 Air tightness detection machine for automobile exhaust pipe

Publications (1)

Publication Number Publication Date
CN202119602U true CN202119602U (en) 2012-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202119661U Expired - Fee Related CN202119602U (en) 2011-06-22 2011-06-22 Air tightness detection machine for automobile exhaust pipe

Country Status (1)

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CN (1) CN202119602U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102967423A (en) * 2012-11-19 2013-03-13 浙江达峰汽车技术有限公司 Gas tightness detection device for automobile tail gas catalytic purifier
CN103376188A (en) * 2012-04-18 2013-10-30 天纳克-埃贝赫(大连)排气系统有限公司 Apparatus for detecting airtight leakage detector by using airtight limit sample
CN103424229A (en) * 2012-05-23 2013-12-04 北汽福田汽车股份有限公司 Device and method for detecting leakproofness of vehicle exhaust system
CN103499424A (en) * 2013-09-25 2014-01-08 重庆市和诚机电设备制造有限公司 Full-functional air-tightness tester
CN103528766A (en) * 2013-10-17 2014-01-22 重庆民发汽车配件有限责任公司 Tool for detecting air tightness of exhaust pipe
CN104655372A (en) * 2013-11-18 2015-05-27 苏州东南电碳科技有限公司 Air tightness detection system for pantograph slide plate and detection method thereof
CN108918048A (en) * 2018-07-10 2018-11-30 红云红河烟草(集团)有限责任公司 A kind of deduster compressed air leakage alarm method
CN109708861A (en) * 2018-12-29 2019-05-03 东南大学 A kind of automobile exhaust pipe thermal vibration detection method and detection system, computer program

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103376188A (en) * 2012-04-18 2013-10-30 天纳克-埃贝赫(大连)排气系统有限公司 Apparatus for detecting airtight leakage detector by using airtight limit sample
CN103424229A (en) * 2012-05-23 2013-12-04 北汽福田汽车股份有限公司 Device and method for detecting leakproofness of vehicle exhaust system
CN102967423A (en) * 2012-11-19 2013-03-13 浙江达峰汽车技术有限公司 Gas tightness detection device for automobile tail gas catalytic purifier
CN103499424A (en) * 2013-09-25 2014-01-08 重庆市和诚机电设备制造有限公司 Full-functional air-tightness tester
CN103499424B (en) * 2013-09-25 2016-01-20 重庆市和诚机电设备制造有限公司 Global function gas-tight tester
CN103528766A (en) * 2013-10-17 2014-01-22 重庆民发汽车配件有限责任公司 Tool for detecting air tightness of exhaust pipe
CN103528766B (en) * 2013-10-17 2015-12-02 重庆民发汽车配件有限责任公司 A kind of gas outlet air-tightness detection tool
CN104655372A (en) * 2013-11-18 2015-05-27 苏州东南电碳科技有限公司 Air tightness detection system for pantograph slide plate and detection method thereof
CN104655372B (en) * 2013-11-18 2018-06-01 苏州东南佳新材料股份有限公司 Pantograph pan air tightness detection system and its detection method
CN108918048A (en) * 2018-07-10 2018-11-30 红云红河烟草(集团)有限责任公司 A kind of deduster compressed air leakage alarm method
CN109708861A (en) * 2018-12-29 2019-05-03 东南大学 A kind of automobile exhaust pipe thermal vibration detection method and detection system, computer program

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20140622

EXPY Termination of patent right or utility model