The content of the invention
To solve the above problems, the invention provides it is a kind of can be with the equipment of automatic detection exhaust manifold air-tightness, this sets
It is standby to detect vehicle engine exhaust divided manifold air-tightness, moreover it is possible to intuitively to mark leakage point, and be applicable effective and safe
In the detection of various engines exhaust manifold, the automation of automobile gas exhausting manifold branch air-leakage test in process of production is realized.
The present invention examines its air-tightness using the mode of high pressure compressing infiltration, simple to operate, positive effect of hunting leak, and applicability is wide, fits
Close the detection of all kinds of common exhaust manifold air-tightness.
In order to realize foregoing invention purpose, technical scheme is as follows：
The present invention for it is a kind of can be with the equipment of automatic detection exhaust manifold air-tightness, including detection car, starter and alarm；Institute
State detection car three face and be provided with a plurality of slideway in length and breadth, inwardly stretch out multiple clamping devices from the slideway in length and breadth, and with hook pawl
Sealing device；The clamping device and sealing device are connected with power set respectively, and the power set afterbody runs through to be slided in length and breadth
Road, moved in length and breadth on slideway described；The detection car is provided with automatic water filling pipe fitting and automatic gas transmission pipe fitting；The starter and
Alarm is arranged on the outside of detection car, and control system is connected by sensor；Described clamping device is additionally provided with stepper motor.This
The mobile adjustment of clamping device and sealing device is realized in invention by slideway in length and breadth, can carry out clamping to different type exhaust manifold
And sealing, the mode that infiltration is oppressed using high pressure examine its air-tightness.
Further, the power set include hydraulic jack one and hydraulic jack two；The hydraulic jack one is with clamping
Device is connected, and the hydraulic jack two is connected with sealing device；The clamping device is arranged on detection car and corresponded on two sides；Institute
Sealing device is stated to be arranged on the detection car back side；The stepper motor is placed in the push rod end of hydraulic jack one, rotor connection
Clamping device.By the flexible drive of the hydraulic jack one and the push rod of hydraulic jack two, the clamping device and sealing are realized
Device is clamped and sealed to exhaust manifold to be measured；Reached by the stepper motor adjustable gripping device and be adapted to angle,
It is easy to clamp exhaust manifold.
Further, described slideway in length and breadth divides end slipway and transverse slipway staggeredly to communicate, described to be set in length and breadth in slideway
Pulley and motor.The slideway in length and breadth by control system, can coordinate the rotation of the pulley and motor, realize power set
Horizontal and vertical movement.
Further, the sealing device includes support limit stop, screw rod, sealing plate, chute block and hooks pawl；The support
Block is connected with the push rod of hydraulic jack two；Tapped through hole is provided among the chute block；The screw rod connection sealing plate is simultaneously
Through the tapped through hole of chute block；The afterbody for hooking pawl links chute block, is moved on the chute block；The hook
The pawl head bending direction of pawl is vertical with the screw motion direction；One layer of rubber blanket is fixed on the sealing plate；The sealing plate
Edge output four and run through groove.Sealing plate is released and arrives suitable position by the push rod of the hydraulic jack two, and the hook pawl can
Moved on the chute of chute block, with according to the different exhaust manifolds adjustment hook pawl openings of sizes, the pawl head for hooking pawl
Exhaust manifold mouth of pipe flank, then rotary screw pinch seal plate are caught on, and runs through groove and exhaust manifold branch by described in screw
Mouth flank connection, is finally tightened nut, is deformed upon using rubber blanket to strengthen sealing effectiveness so as to which exhaust manifold be fully sealed
Each mouth of pipe.
Further, the detection underbody face is provided with tank, and support base, the support base are fixed with the tank
Height be slightly above the height of tank；Magnet coil is equipped with inside the clamping device and support base.The tank is connected to
Drainpipe, for accepting and discharging detection water；The magnet coil forms electromagnet after being powered, for holding exhaust during clamping
Manifold, tentatively to fix and to adjust exhaust manifold.
Further, the automatic gas transmission inside pipe fitting is provided with high power heater strip and relief valve；The starter and report
Alert device is provided with boom unit；The sensor is pressure sensor, and the control system is PLC control system.The high power
Heater strip can heated compressed air, formed hot blast；The relief valve is put for completing the laggard luggage of exhaust manifold air-leakage test
High pressure relief；The pressure sensor is used to sense pressure change in exhaust manifold, and connects the PLC control system, when
When pressure decline exceeds limit value, triggering buzzing alarm.
The application method of the present invention comprises the following steps：
1）Clamp：When clamping exhaust manifold to be measured, the clamping device detected on car one side extends suitable position, by exhaust to be measured
After manifold mouth of pipe is uprightly put into support base inwardly, it is powered inside clamping device, support base, opens electromagnet, hold
Exhaust manifold, tentatively to fix exhaust manifold to be measured；After adjusting exhaust manifold, the clamping device of detection car opposite side passes through
Stretched out after exhaust manifold correspondence position to be measured is moved on slideway in length and breadth, while clamping device can be adjusted by stepper motor and reached
To suitable angle, it is easy to clamp the full manifold of exhaust to be measured.
2）Sealing：The sealing device of respective numbers is selected according to the specification shape of exhaust manifold, sealing device is being slided in length and breadth
After exhaust manifold branch mouth correspondence position is moved on road, under the promotion of the push rod of hydraulic jack two, sealing plate is stretched out, makes sealing plate
Close to exhaust manifold；Again by rotary screw, forward extend out sealing plate, until the rubber blanket on sealing plate withstands exhaust manifold
Each branch mouth, then adjusted by chute block and hook pawl openings of sizes, pinch seal plate and exhaust manifold, finally will pass through with screw
Groove and the connection of exhaust manifold branch mouth flank, and nut is tightened, strengthen sealing effectiveness.
3）Detection：Automatic water filling pipe fitting connects with exhaust manifold supervisor, and the water filling into exhaust manifold, stops after filling water
Water filling, switch to automatic gas transmission pipe fitting to be responsible for exhaust manifold and be connected, compressed air is added into exhaust manifold supervisor；Work as exhaust
Discrimination overpressure stops adding compressed air after reaching certain high value；If leaking, starter and alarm pass through pressure
Force snesor senses that pressure declines and exceed setting range, then can buzzing alarm, and mark leakage point, be now also clearly visible
Exhaust manifold surface has water to be oozed out from leakage point；Starter and alarm are alarmed without buzzing, then product is qualified；
4）Drying：After completing leak detection, relief valve pressure release is opened, discharges the water in exhaust manifold, starts high power heater strip, to row
Hot blast is blown into gas manifold, dries Residual water.
Compared with prior art, advantages of the present invention：
1. can be suitably used for the detection of a variety of different size shape enmgine exhaust air-tightness, an equipment is not limited to detect
A kind of exhaust manifold air-tightness, it is flexible and changeable, it is workable.
2. vertical clamping manifold to be measured, air-tightness is judged by pressure change and infiltration situation, leak point shows intuitively, inspection
It is more accurate to survey result.
3. clamping and sealing device displacement operation can realize automatically controlled, automaticity height.
4. being provided with blow-dry device, it is easy to the next REPAIR WELDING to exhaust manifold, storage transport etc..
5. the present invention examines exhaust manifold air-tightness using the mode of high pressure compressing infiltration, simple to operate, leak detection effect is bright
It is aobvious, and applicability is wide, is adapted to the detection of all kinds of common exhaust manifold air-tightness.
Brief description of the drawings
Fig. 1 is the positive side schematic view of structure of the present invention.
Fig. 2 is structured rear surface schematic diagram of the present invention.
Fig. 3 is clamping device profile.
Fig. 4 is sealing device schematic diagram.
Fig. 5 is sealing plate structure signal.
Fig. 6 is automatic gas transmission pipe fitting profile.
Parts title and sequence number in figure：
Detect car 1, starter and alarm 2, automatic gas transmission pipe fitting 3, hydraulic jack 1, clamping device 5, hydraulic jack 26,
Sealing device 7, automatic water filling pipe fitting 8, tank 9, in length and breadth support base 10, slideway 11, support limit stop 12, screw rod 13, sealing plate
14th, chute block 15, hook pawl 16, rubber blanket 17, through groove 18, high power heater strip 19, relief valve 20, stepper motor 21.
It is a kind of can be with the equipment of automatic detection exhaust manifold air-tightness, including detection car 1, starter and alarm 2；The detection
The face of car 1 three is provided with a plurality of slideway 11 in length and breadth, and the slideway in length and breadth 11 inwardly stretches out multiple clamping devices 5, and with hook pawl 16
Sealing device 7；The clamping device 5 and sealing device 7 are connected with power set respectively, and the power set afterbody is through in length and breadth
Slideway 11, moved on the slideway in length and breadth 11；The detection car 1 is provided with automatic water filling pipe fitting 8 and automatic gas transmission pipe fitting 3；Institute
State starter and device alarm 2 is arranged on the outside of detection car, control system is connected by sensor.The power set include liquid
Compressing cylinder 1 and hydraulic jack 26；The hydraulic jack 1 is connected with clamping device 5, and the hydraulic jack 26 fills with sealing
Put 7 connections；The clamping device is arranged on the corresponding two sides of detection car 1；The sealing device 7 is arranged on detection car 1 back side
On；Described clamping device 5 is additionally provided with stepper motor 21.Phase that described slideway in length and breadth 11 divides end slipway and transverse slipway interlocks
It is logical, set pulley and motor in the slideway in length and breadth 11.The sealing device 7 include support limit stop 12, screw rod 13, sealing plate 14,
Chute block 15 and hook pawl 16；The support limit stop 12 is connected with the push rod of hydraulic jack 26；Set among the chute block 15
There is tapped through hole；The screw rod 13 connects sealing plate 14 and passes through the tapped through hole of chute block 15；The afterbody for hooking pawl 16
Chute block 15 is linked, is moved on the chute block 15；The pawl head bending direction for hooking pawl 16 is transported with the screw rod 13
Dynamic direction is vertical；One layer of rubber blanket 17 is fixed on the sealing plate 14；The edge of the sealing plate 14 outputs four and runs through groove
18.The stepper motor 21 is placed in the push rod end of hydraulic jack 1, rotor connection clamping device 5.Detection car 1 bottom
Face is provided with tank 9, and support base 10 is fixed with the tank 9, and the height of the support base 10 is slightly above the height of tank 9
Degree.The starter and alarm 2 are provided with boom unit；The sensor is pressure sensor, and the control system is controlled for PLC
The application method of the equipment is as follows：
During clamping exhaust manifold to be measured, the clamping device 5 detected on 1 one sides of car extends suitable position, by exhaust discrimination to be measured
Pipe mouth of pipe is uprightly put into support base 10 inwardly, and after adjusting exhaust manifold, the clamping device 5 of the detection opposite side of car 1 is logical
Cross after exhaust manifold correspondence position to be measured is moved on slideway 11 in length and breadth and stretch out, while can be adjusted and clamped by stepper motor 21
Device reaches suitable angle, is easy to clamp the full manifold of exhaust to be measured.According to the specification shape of exhaust manifold from respective numbers
Sealing device 7, sealing device 7 push away after exhaust manifold branch mouth correspondence position is moved on slideway 11 in length and breadth in hydraulic jack 26
Under the promotion of bar, stretch out sealing plate 14, make sealing plate 14 close to exhaust manifold, then by rotary screw 13, make sealing plate 14 to
Preceding stretching, until the rubber blanket 17 on sealing plate 14 withstands each branch mouth of exhaust manifold, then adjusted by chute block 15 and hook pawl
16 openings of sizes, pinch seal plate 14 and exhaust manifold, it finally will pass through groove 18 with screw and exhaust manifold branch mouth flank connect,
And nut is tightened, strengthen sealing effectiveness.Automatic water filling pipe fitting 8 and exhaust manifold supervisor are connected again, and noted into exhaust manifold
Water, stop water filling after filling water, switch to automatic gas transmission pipe fitting 3 to be responsible for exhaust manifold and be connected, Nei Jia is responsible for exhaust manifold
Enter compressed air；Stop adding compressed air after pressure reaches certain high value in exhaust manifold；If leaking, start
Device and alarm 2 sense that pressure declines by pressure sensor and exceed setting range, then can buzzing alarm, and mark leakage
Point, being now also clearly visible exhaust manifold surface has water to be oozed out from leak point；Starter and alarm 2 are alarmed without buzzing, then
Product is qualified.