CN107576452A - Exhaust manifold airtight detecting apparatus and method - Google Patents
Exhaust manifold airtight detecting apparatus and method Download PDFInfo
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- CN107576452A CN107576452A CN201710872935.2A CN201710872935A CN107576452A CN 107576452 A CN107576452 A CN 107576452A CN 201710872935 A CN201710872935 A CN 201710872935A CN 107576452 A CN107576452 A CN 107576452A
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Abstract
The present invention relates to exhaust manifold for internal combustion engine air tightness detection apparatus technical field, more particularly, to a kind of exhaust manifold airtight detecting apparatus and method.To alleviate the airtight test of exhaust manifold present in prior art operation inconvenience and block the problem of exhaust manifold air-tightness is bad.Including drive mechanism, the output end for being installed on drive mechanism the first seal assembly and be installed on the Hui Gou mechanisms of drive mechanism.In the first stroke of drive mechanism, drive mechanism drives the first seal assembly close to the gas outlet of exhaust manifold, and Hui Gou mechanisms exceed the first seal assembly.In the second stroke of drive mechanism, drive mechanism continues to apply active force to exhaust manifold, is retracted under the reaction force of exhaust manifold and drives Hui Gou mechanisms until the outlet flange back of exhaust manifold is caught in the end of Hui Gou mechanisms.Technical scheme provided by the invention is easy to operate, favorable sealing property.
Description
Technical field
The present invention relates to exhaust manifold for internal combustion engine air tightness detection apparatus technical field, more particularly, to a kind of exhaust manifold gas
Close detection device and method.
Background technology
Exhaust manifold product category is various, and the structure and shape of every kind of product are not quite similar.But they have two altogether
Same feature, i.e. every kind of pipe is required for 100% air-leakage test, every kind of pipe all to have an inlet flange and one
Individual or several outlet flanges.When doing products air tightness detection, inlet flange closure is easier to, and the detection of outlet flange is more
Difficulty, main reason is that：Outlet flange various angles often be present and some is located at the pipe shaft side of product, and what is had is remote
Pipe shaft, when being blocked, it is generally adopted by with a support, securing the stand on bottom plate, and is used for the closure plate sealed
It is placed on support, aids in connecting closure plate with screw rod, product outlet flange is held out against by the screwed hole on support, played close
Plugging action is sealed, this closure mode is often longer or have certain angle to side, particularly outlet flange workpiece top
Product, inlet flange side is often set to open and gas leakage under the closure power effect of outlet flange.Take in this case
Measure is the opposite side increase identical support and holding device in closure outlet flange, for eliminating holding out against for closure side
Power.When using pneumatic closure, and using same principle.This mode often causes complicated, operation inconvenience, stop
The phenomenon that sight, cost waste.In addition, in the prior art, when the closure of manifold is exhausted, due between push rod and closure plate
Using being rigidly connected, the angle slightly deviation when manufacturing or installing, sealing closure plate can not be brought into close contact with outlet flange face,
Occur as soon as poorly sealed phenomenon.
Therefore, the airtight test operation of exhaust manifold of the prior art is inconvenient and blocks exhaust manifold air-tightness not
The problem of good, is as people's technical problem urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide a kind of exhaust manifold airtight detecting apparatus and method, is deposited in the prior art with alleviating
Exhaust manifold airtight test operation inconvenience and block the problem of exhaust manifold air-tightness is bad.
In order to solve the above technical problems, technical scheme provided by the invention is：
A kind of outlet flange plugging device, for exhaust manifold airtight detecting apparatus, including：
Drive mechanism, be installed on the drive mechanism output end the first seal assembly and be installed on the driving
The Hui Gou mechanisms of mechanism；
The drive mechanism has the first stroke and the second stroke；
In the first stroke of the drive mechanism, the drive mechanism drives first seal assembly close to the row
The gas outlet of gas manifold, and the Hui Gou mechanisms exceed first seal assembly；
In the second stroke of the drive mechanism, the drive mechanism continues to apply active force to the exhaust manifold,
Retracted under the reaction force of the exhaust manifold and drive the Hui Gou mechanisms until institute is caught in the end of the Hui Gou mechanisms
State the outlet flange back of exhaust manifold.
Further,
The drive mechanism includes：
Support frame, there is vertical supporting frame and cross-brace frame, there is cavity in the middle part of the cross-brace frame, it is described vertical
Slotted in the middle part of support frame；
First cylinder, it is installed in the transverse support bar of support frame as described above, output shaft is passed through in the vertical supporting frame
Portion slots, also, the end of the output shaft is provided with first seal assembly.
Further,
Hui Gou mechanisms, including be installed on the plug rack of first cylinder head portions, be installed in the cross-brace frame
The rolling assembly of chamber and the guidance set for being installed on the cross-brace frame side；The rolling assembly is used in the driving
The drive mechanism is supported to retract in second stroke of mechanism, the guidance set includes being installed on the cross-brace frame both sides
Guide plate, the guide plate bottom is detachably connected with the cross-brace frame, the guide plate top and first gas
The lateral surface contact of cylinder.
Further,
The plug rack include supporting plate and be installed on the supporting plate end face and with the end face of the supporting plate
Two vertical L-shaped hooks；
Perforate in the middle part of the supporting plate, the output shaft for first cylinder stretch out；
The hook portion of the L-shaped hook inwardly, and the hook portion of the L-shaped hook be used for hooked in the stroke of drive mechanism second
State the flange back of the outlet side of exhaust manifold in residence.
Further,
The rolling assembly includes the central cavity for being built in the cross-brace frame and both ends and the cross-brace
The bearing pin of the cage connection of frame and the multiple rollers being set on the bearing pin, first cylinder contact with the roller.
Further,
First seal assembly includes the first sealing gasket and the first sealing closure plate；
The first sealing closure plate includes first connecting portion, the first main part and the first bayonet lock；
Annular groove is provided with the first connecting portion, the outlet port of the first connecting portion is provided with for passing through first
The screw thread of the connector of cylinder；The head threads position of the connector of first cylinder exports position by the first connecting portion
The screw thread installed stretches into the annular groove；
First bayonet lock is arranged at having away from the side of the first connecting portion, circumferential direction for first main part
There is neck, the neck is used to accommodate first sealing gasket；
It is described first sealing closure plate, can using the connector of first cylinder be basic point do space at any angle oneself
Adapt to fine setting.
A kind of exhaust manifold airtight detecting apparatus includes above-mentioned outlet flange plugging device, in addition to inlet flange closure
Device；
The inlet flange plugging device includes：
Backing plate, sealing ring, the air admission hole being arranged in the sealing ring, be installed on the backing plate side connect installation soon
Hole and the detent mechanism being arranged on the backing plate；
The mounting hole that connects soon connects with the air admission hole, and air-flow flows to the air admission hole by the mounting hole that connects soon,
Then entered by the air admission hole in the exhaust manifold；
The detent mechanism includes the dowel hole being arranged on the backing plate, and is installed in the dowel hole
Alignment pin, the detent mechanism are used for the positioning of the inlet end of the exhaust manifold.
Further,
The exhaust manifold airtight detecting apparatus also includes exhaust manifold pressing device；
The exhaust manifold pressing device includes at least one exhaust manifold compressing unit；
The exhaust manifold compressing unit includes：
Second cylinder；
Second cylinder supports bar, second cylinder end is installed on, for raising second cylinder with reserved operation
Space；
Cylinder connector, it is installed on the bottom surface of second cylinder；
Pressing plate, one end are articulated with the end of the cylinder connector, and the other end extends to the upper surface of the exhaust manifold；
Plate bracket, it is parallel with the second cylinder supports bar, and deviate from the cylinder connector close to the pressing plate
One end；
Connecting plate, plate face is parallel with the plane where the pressing plate, and lower end is flexibly connected with the plate bracket, upper end with
The pressing plate is flexibly connected.
Further,
The exhaust manifold airtight detecting apparatus also includes connection neck seal block apparatus, and the connection neck seal block apparatus includes two
Individual connection neck seal blocks up unit, and two connection neck seals block up the both sides that unit is respectively in the exhaust manifold, the connection neck seal
Stifled unit is used for the neck opening for blocking the exhaust manifold；
The connection neck seal, which blocks up unit, to be included：
3rd air cylinder support, there is mounting hole；
3rd cylinder, the output shaft for being installed on the 3rd air cylinder support and the 3rd cylinder pass through the 3rd gas
Jar support；
Second seal assembly, it is connected with the end of the output shaft of the 3rd cylinder, for blocking the exhaust manifold
Connect neck；
Second seal assembly includes the second sealing gasket and the second sealing closure plate；
The second sealing closure plate includes second connecting portion, the second main part and the second bayonet lock；
Annular groove is provided with the second connecting portion, the outlet port of the second connecting portion is provided with for passing through second
The screw thread of the connector of cylinder；The outlet port that the head position of the connector of second cylinder passes through the second connecting portion
Screw thread stretch into the annular groove；
Second bayonet lock is arranged at having away from the side of the second connecting portion, circumferential direction for second main part
There is neck, the neck is used to accommodate second sealing gasket.
The second sealing closure plate, can do spatially adaptive at any angle using the second cylinder connector as basic point
It should finely tune.
A kind of airtight detection method of exhaust manifold, including：
The inlet end of exhaust manifold is installed on the inlet flange plugging device, the inlet end of the exhaust manifold is by entering
The detent mechanism positioning of gas flange plugging device and the sealing ring sealing by the inlet flange plugging device；
Start the exhaust manifold pressing device so that the free end of pressing plate applies compaction pressure to the exhaust manifold；
Start the outlet flange plugging device, drive mechanism carries out the first stroke, and the first cylinder drives the first sealing group
Part is close to the gas outlet of the exhaust manifold until blocking the gas outlet of the exhaust manifold, at the same time, the envelope of Hui Gou mechanisms
Stifled support exceeds first seal assembly；After the first stroke terminates, drive mechanism carries out the second stroke, and the first cylinder continues
Travel forward, the drive mechanism is returned under the reaction force of the exhaust manifold outlet flange against the roller of rolling assembly
Move back, until the plug rack of the Hui Gou mechanisms catches on the flange back of the outlet side of the exhaust manifold, it is described so as to avoid
Exhaust manifold stress during gas outlet is blocked；
Start the connection neck seal block apparatus, the 3rd cylinder drives neck of second seal assembly to the exhaust manifold
Portion's aperture position movement is until block the neck opening.
Start air inlet detection valve inflation detection, unclamp the connection neck seal block apparatus, the outlet after detection successively
Flange plugging device, the exhaust manifold pressing device；For the outlet flange plugging device when unclamping, drive mechanism carries out the
One backhaul, the first cylinder drive the first seal assembly to depart from the exhaust manifold outlet flange face to the vertical branch of support frame as described above
Support, under the vertical supporting frame reaction force of support frame as described above, drive mechanism carry out the second backhaul, the first cylinder drive described in
Hui Gou mechanisms depart from the exhaust manifold outlet flange face back side, to facilitate the loading, unloading of workpiece.
With reference to above technical scheme, the beneficial effect that the present invention can reach is：
The position of exhaust manifold is easily caused to offset in the exit procedure of closure exhaust manifold for of the prior art
Etc. the poor sealing brought the problem of, the present invention is in view of the above-mentioned problems, provide outlet flange plugging device, outlet flange envelope
The course of work of block apparatus is summarized as follows：
Start the outlet flange plugging device, drive mechanism carries out the first stroke, and drive mechanism drives the first sealing group
Part is close to the gas outlet of the exhaust manifold until blocking the gas outlet of the exhaust manifold, at the same time, the envelope of Hui Gou mechanisms
Stifled support exceeds first seal assembly；After the first stroke terminates, drive mechanism carries out the second stroke, and drive mechanism continues
Travel forward, the drive mechanism retracts in the reaction force of the exhaust manifold, until the plug rack of the Hui Gou mechanisms
Catch on the flange back of the outlet side of the exhaust manifold, so as to avoid the exhaust manifold during gas outlet is blocked by
Power.Because exhaust manifold does not apply active force in the overall process of closure gas outlet to exhaust manifold, therefore can the row of avoiding
The position skew of gas manifold, therefore sealing effectiveness is preferable.Also, whole test process is by controlling drive mechanism to block, automatically
Change degree is higher, therefore operates more convenient.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure diagram (row of being provided with of exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Gas manifold)；
Fig. 2 is overall structure diagram (the row of installation of exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Gas manifold)；
Fig. 3 is the decomposition of the outlet flange plugging device in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Schematic diagram；
Fig. 4 is the decomposition of the outlet flange plugging device in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Schematic diagram；
Fig. 5 be exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention top view (wherein index portion be into
Gas flange plugging device)；
Fig. 6 is the structure of the exhaust manifold pressing device in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Schematic diagram；
Fig. 7 is that the structure of the connection neck seal block apparatus in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention is shown
It is intended to；
Fig. 8 is that (left side is cylinder for the structural representation of the first seal assembly of exhaust manifold provided in an embodiment of the present invention
Joint, right side are workpiece)；
Fig. 9 is that (left side is cylinder for the structural representation of the second seal assembly of exhaust manifold provided in an embodiment of the present invention
Joint, right side are workpiece).
Icon：100- outlet flange plugging devices；110- drive mechanisms；The seal assemblies of 120- first；130-, which is returned, to be hooked
Mechanism；111- support frames；1111- vertical supporting framves；1112- cross-brace plates；The cylinders of 112- first；131- plug racks；
132- rolling assemblies；133- guidance sets；1311- supporting plates；1312-L shape hooks；The sealing gaskets of 121- first；122- first is sealed
Closure plate；200- inlet flange plugging devices；210- backing plates；220- sealing rings；230- air admission holes；240- connects mounting hole soon；300-
Exhaust manifold pressing device；The cylinders of 310- second；320- the second cylinder supports bars；330- cylinder connectors；340- pressing plates；350- is pressed
Board mount；360- connecting plates；400- connection neck seal block apparatus；The air cylinder supports of 410- the 3rd；The cylinders of 420- the 3rd；430- second is close
Sealing assembly；The sealing gaskets of 431- second；432- second seals closure plate；1221- first connecting portions；The main parts of 1222- first；1223-
First bayonet lock；4321- second connecting portions；The main parts of 4322- second；The bayonet locks of 4323- second.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment 1, embodiment 2 and embodiment 3 are described in detail below in conjunction with the accompanying drawings：
Fig. 1 is that the overall structure diagram of exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention is provided with exhaust
Manifold；Fig. 2 is that the overall structure diagram of exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention does not install exhaust discrimination
Pipe；Fig. 3 is the exploded pictorial of the outlet flange plugging device in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Figure；Fig. 4 is the exploded pictorial of the outlet flange plugging device in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Figure；Fig. 5 is that the top view wherein index portion of exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention is inlet flange
Plugging device；Fig. 6 is the knot of the exhaust manifold pressing device in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Structure schematic diagram；Fig. 7 is the structure of the connection neck seal block apparatus in exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
Schematic diagram；Fig. 8 is that (left side connects for cylinder for the structural representation of the first seal assembly of exhaust manifold provided in an embodiment of the present invention
Head, right side are workpiece)；Fig. 9 is the structural representation (left side of the second seal assembly of exhaust manifold provided in an embodiment of the present invention
For cylinder connector, right side is workpiece).
Embodiment 1
A kind of outlet flange plugging device 100 is present embodiments provided, for exhaust manifold airtight detecting apparatus, including：
Drive mechanism 110, be installed on drive mechanism 110 output end the first seal assembly 120 and be installed on driving
The Hui Gou mechanisms 130 of mechanism 110；
Drive mechanism 110 has the first stroke and the second stroke；
In the first stroke of drive mechanism 110, drive mechanism 110 drives the first seal assembly 120 close to exhaust manifold
Gas outlet, and Hui Gou mechanisms 130 exceed the first seal assembly 120；
In the second stroke of drive mechanism 110, drive mechanism 110 continues to apply active force to exhaust manifold, is being vented
Retracted under the reaction force of manifold and drive Hui Gou mechanisms 130 until the outlet of exhaust manifold is caught in the end of Hui Gou mechanisms 130
Flange back.
The course of work of the outlet flange plugging device 100 is summarized as follows：
Start outlet flange plugging device 100, drive mechanism 110 carries out the first stroke, and the drive first of drive mechanism 110 is close
Sealing assembly 120 is close to the gas outlet of exhaust manifold until blocking the gas outlet of exhaust manifold, at the same time, Hui Gou mechanisms 130
Plug rack 131 exceeds the first seal assembly 120；After the first stroke terminates, drive mechanism 110 carries out the second stroke, driving
Mechanism 110 moves forward, and drive mechanism 110 retracts in the reaction force of exhaust manifold, until the closure of Hui Gou mechanisms 130
Support 131 catches on the flange back of the outlet side of exhaust manifold, so as to avoid exhaust manifold during gas outlet is blocked by
Power.Because exhaust manifold does not apply active force in the overall process of closure gas outlet to exhaust manifold, therefore can the row of avoiding
The position skew of gas manifold, therefore sealing effectiveness is preferable.Also, whole test process is by controlling drive mechanism 110 to block, certainly
Dynamicization degree is higher, therefore operates more convenient.
In the alternative of the present embodiment, more preferably, drive mechanism 110 includes the cylinder of support frame 111 and first
112。
Above-mentioned support frame 111, has vertical supporting frame 1111 and cross-brace frame 1112, and the middle part of cross-brace frame 1112 has
There is cavity, the middle part of vertical supporting frame 1111 is slotted.Above-mentioned cross-brace frame 1112 is fixed on bottom plate (not to be marked in bottom plate accompanying drawing
Number), fixed form is such as can be threaded connection.
Above-mentioned first cylinder 112, it is installed in the transverse support bar of support frame 111, output shaft passes through vertical supporting frame
1111 middle part fluting, also, the end of output shaft is provided with the first seal assembly 120.In more detail, the first cylinder 112
Outlet end motion of first seal assembly 120 to exhaust manifold is driven in the first stroke until the first seal assembly 120 and row
The outlet end in contact of gas manifold.The output shaft of first cylinder 112 continues to forward extend out, and the first cylinder 112 is transferred to by the first stroke
Second stroke, the output shaft of the first cylinder 112 continue during forward extending out, and the first cylinder 112 is by the anti-of exhaust manifold
Active force, so as to which the first cylinder 112 retracts, now 112 relatively transverse support frame 1112 of the first cylinder moves backward.
In the alternative of the present embodiment, more preferably, Hui Gou mechanisms 130, including it is installed on the end of the first cylinder 112
Plug rack 131, be installed on the rolling assembly 132 (accompanying drawing 3 and Fig. 4) of the inner chamber of cross-brace frame 1112 and be installed on transverse direction
The guidance set 133 (accompanying drawing 3 and Fig. 4) of the side of support frame 1112；Rolling assembly 132 is used for the second row in drive mechanism 110
Support driving mechanism 110 retracts in journey.
Above-mentioned, rolling assembly 132 includes the central cavity and both ends and cross-brace for being built in cross-brace frame 1112
The bearing pin of the cage connection of frame 1112 and the multiple rollers being set on bearing pin, the first cylinder 112 contact with roller.
Above-mentioned, guidance set 133 includes the guide plate for being installed on the both sides of cross-brace frame 1112, guide plate bottom and transverse direction
Support frame 1112 is detachably connected, and guide plate top contacts with the lateral surface of the first cylinder 112.Further, guide plate has
Two, the region between two guide plates is the activity space of the first cylinder 112.Due to being provided with above-mentioned guidance set 133,
It thus can ensure that the first cylinder 112 linearly moves all the time in back off procedure, avoid shifting.
It is above-mentioned, plug rack 131, including supporting plate 1311 and it is installed on the end face of supporting plate 1311 and and supporting plate
Two vertical L-shaped hooks 1312 of 1311 end face.The middle part perforate of supporting plate 1311, the output shaft for the first cylinder 112 stretch out.
The hook portion of L-shaped hook 1312 inwardly, and the hook portion of L-shaped hook 1312 be used for catch on exhaust discrimination in the stroke of drive mechanism 110 second
The flange back of the outlet side of pipe.
In the alternative of the present embodiment, more preferably, the first seal assembly 120 includes the first sealing gasket 121 and the
One sealing closure plate 122, first seals the output axis connection of the cylinder 112 of closure plate 122 and first and is located at vertical supporting frame 1111
Outside, the first sealing gasket 121 is installed on the outside of the first sealing closure plate 122, for blocking the gas outlet of exhaust manifold.More
Specifically, Fig. 8 is refer to, the first sealing closure plate 122 includes first connecting portion 1221, the first main part 1222 and the first bayonet lock
1223.Wherein, first connecting portion 1221, the first main part 1222 and the first bayonet lock 1223 can with integrally connected, global formation,
Can be with split settings, welding fabrication in an assembling process.
Annular groove is provided with the first connecting portion 1221, the outlet port of the first connecting portion 1221, which is provided with, to be used for
Pass through the screw thread of the connector of the first cylinder 112；The head threads position of the connector of first cylinder 112 passes through described
The screw thread that the outlet port of one connecting portion 1221 is set stretches into the annular groove；
First bayonet lock 1223 be arranged at first main part away from the side of the first connecting portion 1221, week
There is neck to direction, the neck is used to accommodate first sealing gasket 121；The structure of bayonet lock and neck can facilitate first
The installation and replacing of sealing gasket.Closure plate and sealing gasket are connected by screw in the prior art, or by gluing.
The first sealing closure plate 122, the random angle in space can be done using the connector of first cylinder 112 as basic point
The adaptive fine setting of degree.
Embodiment 2
Present embodiments provide a kind of exhaust manifold airtight detecting apparatus, including the outlet flange closure in embodiment 1
Device 100, in addition to inlet flange plugging device 200；
Inlet flange plugging device 200 includes：Backing plate 210, sealing ring 220, the air admission hole being arranged in sealing ring 220
230th, it is installed on the detent mechanism for connecing mounting hole 240 soon and being arranged on backing plate 210 of the side of backing plate 210.Mounting hole is connect soon
240 connect with air admission hole 230, and air-flow flows to air admission hole 230 by connecing mounting hole 240 soon, are then entered by air admission hole 230 and are vented
In manifold.Detent mechanism includes the dowel hole being arranged on backing plate 210, and the alignment pin being installed in dowel hole, fixed
Position mechanism is used for the positioning of the inlet end of exhaust manifold.
In the alternative of the present embodiment, more preferably, exhaust manifold airtight detecting apparatus also includes exhaust manifold pressure
Tight device 300.Exhaust manifold pressing device 300 includes at least one exhaust manifold compressing unit.Exhaust manifold compressing unit bag
Include the second cylinder 310, the support bar 320 of the second cylinder 310, cylinder connector 330, pressing plate 340, the support 350 of pressing plate 340 and connection
Plate 360.The support bar 320 of second cylinder 310 is installed on the bottom of the second cylinder 310, for raising the second cylinder 310 with reserved operation
Space.Cylinder connector 330 is installed on the bottom surface of the second cylinder 310.The one end of pressing plate 340 is articulated with the end of cylinder connector 330, separately
One end extends to the upper surface of exhaust manifold.The support 350 of pressing plate 340 and the support bar 320 of the second cylinder 310 are parallel and close
Pressing plate 340 away from one end of cylinder connector 330.The plate face of connecting plate 360 is parallel with the plane where pressing plate 340, lower end and pressure
The support 350 of plate 340 is flexibly connected, and upper end is flexibly connected with pressing plate 340.
In the alternative of the present embodiment, more preferably, exhaust manifold airtight detecting apparatus also includes connection neck seal and blocked up
Device 400, connection neck seal block apparatus 400 include two connection neck seals and block up unit, and two connection neck seals block up unit and are respectively in exhaust
The both sides of manifold, and two connection neck seals block up the line of unit perpendicular to the axis of outlet flange plugging device 100, connection
Neck seal blocks up the neck opening that unit is used to block exhaust manifold.Connecting neck seal and blocking up unit includes the support 410 of the 3rd cylinder 420, the
Three cylinders 420 and the second seal assembly 430.The support 410 of 3rd cylinder 420 has mounting hole.3rd cylinder 420 is installed on
The output shaft of the support 410 of three cylinder 420 and the 3rd cylinder 420 passes through the support 410 of the 3rd cylinder 420.Second seal assembly 430
It is connected with the end of the output shaft of the 3rd cylinder 420, for blocking the connection neck of exhaust manifold.Second seal assembly 430 includes
Second sealing gasket 431 and the second sealing closure plate 432, the output axis connection of the second sealing cylinder 420 of closure plate 432 and the 3rd, second
Sealing gasket 431 is installed on the outside of the second sealing closure plate 432, for blocking the connecting neck portion opening of exhaust manifold.Specifically
Ground, refer to Fig. 9, and the second sealing closure plate 432 includes second connecting portion 4321, the second main part 4322 and the second bayonet lock 4323；
Wherein, second connecting portion 4321, the second main part 4322 and the second bayonet lock 4323 can be with integrally connecteds, global formation, can also
Split settings, in an assembling process welding fabrication.
Annular groove is provided with the second connecting portion 4321, the outlet port of the second connecting portion 4321, which is provided with, to be used for
Pass through the screw thread of the connector of the second cylinder 310；The head position of the connector of second cylinder 310 connects by described second
The screw thread of the outlet port of socket part 4321 stretches into the annular groove；
Second bayonet lock 4323 be arranged at second main part 4322 away from the one of the second connecting portion 4321
Side, circumferential direction have neck, and the neck is used to accommodate second sealing gasket 431.The structure of bayonet lock and neck can be square
Just the installation and replacing of the second sealing gasket.Closure plate and sealing gasket are connected by screw in the prior art, or by gluing.
The second sealing closure plate 432, can be done spatially at any angle using the second cylinder connector as basic point
Adaptive fine setting.
Embodiment 3
A kind of airtight detection method of exhaust manifold is present embodiments provided, is comprised the following steps：
S1：The inlet end of exhaust manifold is installed on inlet flange plugging device 200, the inlet end of exhaust manifold is by air inlet
The detent mechanism of flange plugging device 200 is positioned and sealed by the sealing ring 220 of inlet flange plugging device 200；
S2：Start exhaust manifold pressing device 300 so that the free end of pressing plate 340 applies compaction pressure to exhaust manifold；
S3：Start outlet flange plugging device 100, drive mechanism 110 carries out the first stroke, and the first cylinder 112 drives the
One seal assembly 120 is close to the gas outlet of exhaust manifold until blocking the gas outlet of exhaust manifold, at the same time, Hui Gou mechanisms
130 plug rack 131 exceeds the first seal assembly 120；After the first stroke terminates, drive mechanism 110 carries out the second stroke,
First cylinder 112 moves forward, and drive mechanism 110 is under the reaction force of exhaust manifold against the rolling of rolling assembly 132
Wheel retracts, until the plug rack 131 of Hui Gou mechanisms 130 catches on the flange back of the outlet side of exhaust manifold, so as to the row of avoiding
Gas manifold stress during gas outlet is blocked；
S4：Start connection neck seal block apparatus 400, the 3rd cylinder 420 drives neck of second seal assembly 430 to exhaust manifold
Portion's aperture position movement is until closure neck opening.
S5：Start air inlet detection valve inflation detection, unclamp the connection neck seal block apparatus 400, institute after detection successively
State outlet flange plugging device 100, the exhaust manifold pressing device 300；The outlet flange plugging device 100 is unclamping
When, drive mechanism 110 carries out the first backhaul, and the first cylinder 112 drives the first seal assembly 120 to depart from the exhaust manifold outlet
Flange face to support frame as described above 111 vertical supporting frame 1111, in the reaction force of vertical supporting frame 1111 of support frame as described above 111
Under, drive mechanism 110 carries out the second backhaul, and the first cylinder 112 drives the Hui Gou mechanisms 130 to depart from the exhaust manifold outlet
The flange face back side, to facilitate the loading, unloading of workpiece.
In addition, it is also necessary to supplementary notes, the outlet flange closure during experiment is completed to carry out dismounting operation
The course of work of device 100 is summarized as follows：
First cylinder 112 drives the first seal assembly 120 to retreat until the first seal assembly 120 is resisted against vertical supporting frame
1111, the first stop motion in the presence of vertical supporting frame 1111 of seal assembly 120, but now, the gas of the first cylinder 112
Cylinder rod also has certain stroke, and the cylinder rod of the first cylinder 112 continues to retreat, and the first cylinder is driven in cylinder rod fallback procedures
112 move forward with the Hui Gou mechanisms 130 being installed on the first cylinder 112 so that Hui Gou mechanisms 130 depart from product, facilitate workpiece to tear open
Unload, in whole test process, the closure power of outlet flange plugging device 100 does not pass to exhaust manifold, other regions, such as enters
The sealing of the positions such as gas flange, connection neck is unaffected, and sealing effectiveness is preferable.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
- A kind of 1. outlet flange plugging device, for exhaust manifold airtight detecting apparatus, it is characterised in that including：Drive mechanism (110), be installed on the drive mechanism (110) output end the first seal assembly (120) and installation In the Hui Gou mechanisms (130) of the drive mechanism (110)；The drive mechanism (110) has the first stroke and the second stroke；In the first stroke of the drive mechanism (110), the drive mechanism (110) drives first seal assembly (120) close to the gas outlet of the exhaust manifold, and the Hui Gou mechanisms (130) exceed first seal assembly (120)；In the second stroke of the drive mechanism (110), the drive mechanism (110) is continued to apply to the exhaust manifold and made Firmly, retracted under the reaction force of the exhaust manifold and drive the Hui Gou mechanisms (130) until the Hui Gou mechanisms (130) the outlet flange back of the exhaust manifold is caught in end.
- 2. outlet flange plugging device according to claim 1, it is characterised in thatThe drive mechanism (110) includes：Support frame (111), has vertical supporting frame (1111) and a cross-brace frame (1112), in the cross-brace frame (1112) Portion has cavity, is slotted in the middle part of the vertical supporting frame (1111)；First cylinder (112), it is installed in the transverse support bar of support frame as described above (111), output shaft passes through the vertical supporting The middle part fluting of frame (1111), also, the end of the output shaft is provided with first seal assembly (120).
- 3. outlet flange plugging device according to claim 2, it is characterised in thatHui Gou mechanisms (130), including be installed on the plug rack (131) of the first cylinder (112) end, be installed on the horizontal stroke Rolling assembly (132) to support frame (1112) inner chamber and the guidance set for being installed on cross-brace frame (1112) side (133)；The rolling assembly (132) is used to support the drive mechanism in the second stroke of the drive mechanism (110) (110) retract, the guidance set (133) includes being installed on the guide plate of cross-brace frame (1112) both sides, described to lead It is detachably connected to plate bottom and the cross-brace frame (1112), the guide plate top and first cylinder (112) Lateral surface contacts.
- 4. outlet flange plugging device according to claim 2, it is characterised in thatThe plug rack (131) include supporting plate (1311) and be installed on the supporting plate (1311) end face and with institute State two vertical L-shaped hooks (1312) of the end face of supporting plate (1311)；Perforate in the middle part of the supporting plate (1311), the output shaft for first cylinder (112) stretch out；The hook portion of the L-shaped hook (1312) inwardly, and the hook portion of the L-shaped hook (1312) be used in the drive mechanism The flange back of the outlet side of the exhaust manifold is caught in (110) second strokes.
- 5. outlet flange plugging device according to claim 3, it is characterised in thatThe rolling assembly (132) includes being built in the central cavity of the cross-brace frame (1112) and both ends and the horizontal stroke Bearing pin to the cage connection of support frame (1112) and the multiple rollers being set on the bearing pin, first cylinder (112) contacted with the roller.
- 6. outlet flange plugging device according to claim 1, it is characterised in thatFirst seal assembly (120) includes the first sealing gasket (121) and the first sealing closure plate (122)；The first sealing closure plate (122) includes first connecting portion (1221), the first main part (1222) and the first bayonet lock (1223)；Annular groove is provided with the first connecting portion (1221), the outlet port of the first connecting portion (1221), which is provided with, to be used for Pass through the screw thread of the connector of the first cylinder (112)；The head threads position of the connector of first cylinder (112) passes through institute The screw thread for stating the setting of first connecting portion (1221) outlet port stretches into the annular groove；First bayonet lock (1223) be arranged at first main part away from the side of the first connecting portion (1221), week There is neck to direction, the neck is used to accommodate first sealing gasket (121)；The first sealing closure plate (122), the random angle in space can be done using the connector of first cylinder (112) as basic point The adaptive fine setting of degree.
- 7. a kind of exhaust manifold airtight detecting apparatus, it is characterised in that including the outlet method as described in claim any one of 1-6 Blue plugging device, in addition to inlet flange plugging device (200)；The inlet flange plugging device (200) includes：Backing plate (210), sealing ring (220), the air admission hole (230) being arranged in the sealing ring (220), it is installed on the backing plate (210) detent mechanism for connecing mounting hole (240) soon and being arranged on the backing plate (210) of side；The mounting hole (240) that connects soon is connected with the air admission hole (230), and air-flow is flowed to by the mounting hole (240) that connects soon The air admission hole (230), then entered by the air admission hole (230) in the exhaust manifold；The detent mechanism includes the dowel hole being arranged on the backing plate (210), and is installed in the dowel hole Alignment pin, the detent mechanism be used for the exhaust manifold inlet end positioning.
- 8. exhaust manifold airtight detecting apparatus according to claim 7, it is characterised in that the airtight detection of exhaust manifold Equipment also includes exhaust manifold pressing device (300)；The exhaust manifold pressing device (300) includes at least one exhaust manifold compressing unit；The exhaust manifold compressing unit includes：Second cylinder (310)；Second cylinder supports bar (320), the second cylinder (310) bottom is installed on, for raising second cylinder (310) To reserve working space；Cylinder connector (330), it is installed on the bottom surface of second cylinder (310)；Pressing plate (340), one end are articulated with the end of the cylinder connector (330), and the other end extends to the upper of the exhaust manifold End face；Plate bracket (350), it is parallel with the second cylinder supports bar (320), and deviate from institute close to the pressing plate (340) State one end of cylinder connector (330)；Connecting plate (360), plate face is parallel with the plane where the pressing plate (340), lower end and the plate bracket (350) activity Connection, upper end is flexibly connected with the pressing plate (340).
- 9. exhaust manifold airtight detecting apparatus according to claim 7, it is characterised in thatThe exhaust manifold airtight detecting apparatus also includes connection neck seal block apparatus (400), the connection neck seal block apparatus (400) Unit is blocked up including two connection neck seals, two connection neck seals block up the both sides that unit is respectively in the exhaust manifold, the company Connect neck seal and block up the neck opening that unit is used to block the exhaust manifold；The connection neck seal, which blocks up unit, to be included：3rd air cylinder support (410), there is mounting hole；3rd cylinder (420), the output shaft for being installed on the 3rd air cylinder support (410) and the 3rd cylinder (420) are worn Cross the 3rd air cylinder support (410)；Second seal assembly (430), it is connected with the end of the output shaft of the 3rd cylinder (420), for blocking the exhaust The connection neck of manifold；Second seal assembly (430) includes the second sealing gasket (431) and the second sealing closure plate (432)；The second sealing closure plate (432) includes second connecting portion (4321), the second main part (4322) and the second bayonet lock (4323)；Annular groove is provided with the second connecting portion (4321), the outlet port of the second connecting portion (4321), which is provided with, to be used for Pass through the screw thread of the connector of the second cylinder (310)；The head position of the connector of second cylinder (310) passes through described The screw thread of the outlet port of two connecting portions (4321) stretches into the annular groove；Second bayonet lock (4323) be arranged at second main part (4322) away from the second connecting portion (4321) Side, circumferential direction have neck, and the neck is used to accommodate second sealing gasket (431)；It is described second sealing closure plate (432), can using the second cylinder connector be basic point do spatially at any angle oneself Adapt to fine setting.
- A kind of 10. airtight detection method of exhaust manifold, it is characterised in that including：The inlet end of exhaust manifold is installed on the inlet flange plugging device (200), the inlet end of the exhaust manifold by The detent mechanism positioning of inlet flange plugging device (200) and the sealing ring by the inlet flange plugging device (200) (220) seal；Start the exhaust manifold pressing device (300) so that the free end of pressing plate (340) applies compaction pressure to the exhaust Manifold；Start outlet flange plugging device (100), drive mechanism (110) carries out the first stroke, and the first cylinder (112) drives first Seal assembly (120) is close to the gas outlet of the exhaust manifold until the gas outlet of the closure exhaust manifold, at the same time, is returned The plug rack (131) for hooking mechanism (130) exceeds first seal assembly (120)；After the first stroke terminates, drive mechanism (110) the second stroke is carried out, the first cylinder (112) moves forward, and the drive mechanism (110) goes out in the exhaust manifold Roller under the reaction force of gas flange against rolling assembly (132) retracts, until the plug rack of the Hui Gou mechanisms (130) (131) the flange back of the outlet side of the exhaust manifold is caught on, so as to avoid the exhaust manifold in the mistake of closure gas outlet Stress in journey；Start connection neck seal block apparatus (400), the 3rd cylinder (420) drives the second seal assembly (430) to the exhaust manifold The movement of neck opening position until blocking the neck opening；Start air inlet detection valve inflation detection, unclamp the connection neck seal block apparatus (400), the outlet after detection successively Flange plugging device (100), the exhaust manifold pressing device (300)；The outlet flange plugging device (100) is being unclamped When, drive mechanism (110) carries out the first backhaul, and the first cylinder (112) drives the first seal assembly (120) to depart from the exhaust discrimination Pipe outlet flange face to support frame (111) vertical supporting frame (1111), in the vertical supporting frame of support frame as described above (111) (1111) under reaction force, drive mechanism (110) carries out the second backhaul, and the first cylinder (112) drives the Hui Gou mechanisms (130) Depart from the exhaust manifold outlet flange face back side, to facilitate the loading, unloading of workpiece.
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| CN201710872935.2A CN107576452B (en) | 2017-09-25 | 2017-09-25 | Exhaust manifold airtight detecting apparatus and method |
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| CN201710872935.2A CN107576452B (en) | 2017-09-25 | 2017-09-25 | Exhaust manifold airtight detecting apparatus and method |
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