CN107576452B - Exhaust manifold airtight detecting apparatus and method - Google Patents
Exhaust manifold airtight detecting apparatus and method Download PDFInfo
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- CN107576452B CN107576452B CN201710872935.2A CN201710872935A CN107576452B CN 107576452 B CN107576452 B CN 107576452B CN 201710872935 A CN201710872935 A CN 201710872935A CN 107576452 B CN107576452 B CN 107576452B
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Abstract
The present invention relates to exhaust manifold for internal combustion engine air tightness detection apparatus technical fields, more particularly, to a kind of exhaust manifold airtight detecting apparatus and method.Airtight test to alleviate exhaust manifold existing in the prior art is inconvenient and blocks the bad problem of exhaust manifold air-tightness.Including driving mechanism, the output end for being installed on driving mechanism the first seal assembly and be installed on the Hui Gou mechanism of driving mechanism.In the first stroke of driving mechanism, driving mechanism drives the first seal assembly close to the gas outlet of exhaust manifold, and Hui Gou mechanism exceeds the first seal assembly.In the second stroke of driving mechanism, driving mechanism continues to apply active force to exhaust manifold, retracts under the reaction force of exhaust manifold and drives Hui Gou mechanism until the outlet flange back of exhaust manifold is caught in the end of Hui Gou mechanism.Technical solution 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 outlet flange,
Connect neck seal block apparatus, exhaust manifold airtight detecting apparatus and method.
Background technique
Exhaust manifold product category is various, and the structure and shape of every kind of product are not quite similar.But they all there are two altogether
Same feature, that is, every kind of pipe requires 100% air-leakage test, every kind of pipe can all have an inlet flange and one
Or several outlet flanges.When doing products air tightness detection, inlet flange closure is easier to, and the detection of outlet flange is more tired
Difficulty, main reason is that: outlet flange often there are various angles and some is located at the pipe shaft side of product, and some is far from pipe
Body is generally adopted by with a bracket, secures the stand on bottom plate when being blocked, and the closure plate for being used to seal is set
In on bracket, auxiliary connects closure plate with screw rod, is held out against, is played close to product outlet flange by the threaded hole on bracket
Plugging action is sealed, this closure mode is often longer to side, especially outlet flange workpiece top or has certain angle
Product opens inlet flange side and gas leakage in the case where outlet flange blocks power effect.It takes in this case
Measure is to increase identical bracket and holding device in the other side for blocking outlet flange, blocks holding out against for side for eliminating
Power.When using pneumatic block, and use same principle.This mode often will cause that structure is complicated, inconvenient, stop
The phenomenon that sight, cost waste.In addition, in the prior art, in the closure that manifold is exhausted, due between mandril and closure plate
Using rigid connection, the angle slightly deviation when manufacturing or installing, sealing closure plate cannot be fitted closely with outlet flange face,
Occur as soon as poorly sealed phenomenon.
Therefore, the airtight test of exhaust manifold in the prior art is inconvenient and blocks exhaust manifold air-tightness not
Good problem becomes people's technical problem urgently to be resolved.
Summary of the invention
The purpose of the present invention is to provide a kind of outlet flange plugging device, exhaust manifold airtight detecting apparatus and method,
Airtight test to alleviate exhaust manifold existing in the prior art is inconvenient and to block exhaust manifold air-tightness bad
The problem of.
In order to solve the above technical problems, technical solution provided by the invention is:
A kind of outlet flange plugging device is used for exhaust manifold airtight detecting apparatus, comprising:
Driving mechanism, be installed on the driving mechanism output end the first seal assembly and be installed on the driving
The Hui Gou mechanism of mechanism；
The driving mechanism has first stroke and second stroke；
In the first stroke of the driving mechanism, the driving mechanism drives first seal assembly close to the row
The gas outlet of gas manifold, and the Hui Gou mechanism exceeds first seal assembly；
In the second stroke of the driving mechanism, the driving mechanism continues to apply active force to the exhaust manifold,
It retracts under the reaction force of the exhaust manifold and drives the Hui Gou mechanism until institute is caught in the end of the Hui Gou mechanism
State the outlet flange back of exhaust manifold.
Further,
The driving mechanism includes:
Support frame has vertical supporting frame and cross-brace frame, has cavity in the middle part of the cross-brace frame, described vertical
Fluting in the middle part of support frame；
First cylinder is installed on the cross-brace frame of support frame as described above, output shaft passes through in the vertical supporting frame
Portion's fluting, also, the end of the output shaft is equipped with first seal assembly.
Further,
Hui Gou mechanism, including being installed on the plug rack of first cylinder head portions, being installed in the cross-brace frame
The rolling assembly of chamber and the guidance set for being installed on cross-brace frame side；The rolling assembly is used in the driving
The driving mechanism is supported to retract in the second stroke of mechanism, the guidance set includes being installed on cross-brace frame two sides
Guide plate, the guide plate lower part is detachably connected with the cross-brace frame, the guide plate top and first gas
The outside face contact of cylinder.
Further,
The plug rack includes support plate and is installed on the support plate end face and the end face with the support plate
Two vertical L shape hooks；
Aperture in the middle part of the support plate, the output shaft for first cylinder stretch out；
Inwardly, and the hook portion of the L shape hook in the driving mechanism second stroke for hooking for the hook portion of the L shape hook
State the flange back of the outlet side of exhaust manifold in residence.
Further,
The rolling assembly includes the central cavity and both ends and the cross-brace for being built in the cross-brace frame
The pin shaft of the cage connection of frame and the multiple idler wheels being set on the pin shaft, first cylinder are contacted with the idler wheel.
Further,
First seal assembly includes the first 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 in the first connecting portion, the outlet port of the first connecting portion is provided with for by first
The screw thread of the connector of cylinder ()；The head threads position of the connector of first cylinder () passes through the first connecting portion
The screw thread of outlet port setting protrudes into the annular groove；
First bayonet lock is set to the side away from the first connecting portion of first main part, circumferential direction tool
There is card slot, the card slot is for accommodating first 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 tuning.
A kind of exhaust manifold airtight detecting apparatus includes above-mentioned outlet flange plugging device, further includes that inlet flange blocks
Device；
The inlet flange plugging device includes:
Backing plate, sealing ring, the air inlet being set in the sealing ring, be installed on the backing plate side connect installation fastly
Hole and the positioning mechanism being set on the backing plate；
The mounting hole that connects fastly is connected to the air inlet, and air-flow flows to the air inlet by the mounting hole that connects fastly,
Then entered in the exhaust manifold by the air inlet；
The positioning mechanism includes the dowel hole being set on the backing plate, and is installed in the dowel hole
Positioning pin, positioning of the positioning mechanism for the inlet end of the exhaust manifold.
Further,
The exhaust manifold airtight detecting apparatus further 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 is installed on second cylinder end, for raising second cylinder to reserve operation
Space；
Cylinder connector 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 further includes connection neck seal block apparatus, and the connection neck seal block apparatus includes two
A connection neck seal blocks up unit, and two connection neck seals block up the two sides that unit is respectively in the exhaust manifold, the connection neck seal
Stifled unit is used to block the neck opening of the exhaust manifold；
The connection neck seal blocks up unit
Third air cylinder support has mounting hole；
Third cylinder, the output shaft for being installed on the third air cylinder support and the third cylinder pass through the third gas
Jar support；
Second seal assembly is connect, for blocking the exhaust manifold with the end of the output shaft of the third cylinder
Connect neck；
Second seal assembly includes the second 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 in the second connecting portion, the outlet port of the second connecting portion is provided with for by 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 protrude into the annular groove；
Second bayonet lock is set to the side away from the second connecting portion of second main part, circumferential direction tool
There is card slot, the card slot is for accommodating second 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, comprising:
The inlet end of exhaust manifold is installed on the inlet flange plugging device, the inlet end of the exhaust manifold by into
The positioning mechanism of gas flange plugging device is positioned and is sealed by the sealing ring of 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, driving mechanism carries out 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 mechanism
Stifled bracket exceeds first seal assembly；After first stroke, driving mechanism carries out second stroke, and the first cylinder continues
It travels forward, the driving mechanism is returned under the reaction force of the exhaust manifold outlet flange against the idler wheel of rolling assembly
It moves back, until the plug rack of the Hui Gou mechanism catches on the flange back of the outlet side of the exhaust manifold, to avoid described
Exhaust manifold stress during blocking gas outlet；
Start the connection neck seal block apparatus, third cylinder drives neck of second seal assembly to the exhaust manifold
Portion's aperture position is mobile until blocking the neck opening.
Start air inlet detection valve inflation detection, the connection neck seal block apparatus, the outlet are successively unclamped after detection
Flange plugging device, the exhaust manifold pressing device；For the outlet flange plugging device when unclamping, driving mechanism carries out the
One backhaul, the first cylinder the first seal assembly of drive are detached from the vertical branch of the exhaust manifold outlet flange face to support frame as described above
Support, under the vertical supporting frame reaction force of support frame as described above, driving mechanism carry out the second backhaul, the first cylinder drive described in
Hui Gou mechanism is detached from the exhaust manifold outlet flange face back side, to facilitate the loading, unloading of workpiece.
In conjunction with above technical scheme, the beneficial effect that the present invention can reach is:
For the positional shift in the prior art for being easy to cause exhaust manifold in the exit procedure for blocking exhaust manifold
Etc. brings poor sealing 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, driving mechanism carries out first stroke, and driving 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 mechanism
Stifled bracket exceeds first seal assembly；After first stroke, driving mechanism carries out second stroke, and driving mechanism continues
It travels forward, the driving mechanism retracts in the reaction force of the exhaust manifold, until the plug rack of the Hui Gou mechanism
Catch on the flange back of the outlet side of the exhaust manifold, thus avoid the exhaust manifold during blocking gas outlet by
Power.It, can be to avoid row since exhaust manifold does not apply active force to exhaust manifold in the overall process for blocking gas outlet
The positional shift of gas manifold, therefore sealing effect is preferable.Also, entire test process is blocked by control driving mechanism, automatically
Change degree is higher, therefore operates more convenient.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure diagram (row of being equipped 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 schematic diagram of the first seal assembly of exhaust manifold provided in an embodiment of the present invention
Connector, right side are workpiece)；
Fig. 9 is that (left side is cylinder for the structural schematic diagram of the second seal assembly of exhaust manifold provided in an embodiment of the present invention
Connector, right side are workpiece).
Icon: 100- outlet flange plugging device；110- driving mechanism；The first seal assembly of 120-；130- Hui Gou mechanism；
111- support frame；1111- vertical supporting frame；1112- cross-brace frame；The first cylinder of 112-；131- plug rack；132- is rolled
Component；133- guidance set；311- support plate；1312-L shape hook；The first gasket of 121-；122- first seals closure plate；200-
Inlet flange plugging device；210- backing plate；220- sealing ring；230- air inlet；240- connects mounting hole fastly；300- exhaust manifold
Pressing device；The second cylinder of 310-；320- the second cylinder supports bar；330- cylinder connector；340- pressing plate；350- plate bracket；
360- connecting plate；400- connection neck seal block apparatus；410- third air cylinder support；420- third cylinder；The second sealing group of 430-
Part；The second gasket of 431-；432- second seals closure plate；1221- first connecting portion；The first main part of 1222-；1223- first
Bayonet lock；4321- second connecting portion；The second main part of 4322-；The second bayonet lock of 4323-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1, embodiment 2 and embodiment 3 are described in detail with reference to the accompanying drawing:
Fig. 1 is that the overall structure diagram of exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention is equipped 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 wherein index portion is inlet flange for the top view of exhaust manifold airtight detecting apparatus provided in an embodiment of the present invention
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 schematic diagram 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 schematic diagram (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, exhaust manifold airtight detecting apparatus is used for, comprising:
Driving mechanism 110, be installed on driving mechanism 110 output end the first seal assembly 120 and be installed on driving
The Hui Gou mechanism 130 of mechanism 110；
Driving mechanism 110 has first stroke and second stroke；
In the first stroke of driving mechanism 110, driving mechanism 110 drives the first seal assembly 120 close to exhaust manifold
Gas outlet, and Hui Gou mechanism 130 exceed the first seal assembly 120；
In the second stroke of driving mechanism 110, driving mechanism 110 continues to apply active force to exhaust manifold, is being vented
It retracts under the reaction force of manifold and drives Hui Gou mechanism 130 until the outlet of exhaust manifold is caught in the end of Hui Gou mechanism 130
Flange back.
The course of work of the outlet flange plugging device 100 is summarized as follows:
Start outlet flange plugging device 100, driving mechanism 110 carries out first stroke, and the drive first of driving 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 mechanism 130
Plug rack 131 exceeds the first seal assembly 120；After first stroke, driving mechanism 110 carries out second stroke, driving
Mechanism 110 moves forward, and driving mechanism 110 retracts in the reaction force of exhaust manifold, until the closure of Hui Gou mechanism 130
Bracket 131 catches on the flange back of the outlet side of exhaust manifold, thus avoid exhaust manifold during blocking gas outlet by
Power.It, can be to avoid row since exhaust manifold does not apply active force to exhaust manifold in the overall process for blocking gas outlet
The positional shift of gas manifold, therefore sealing effect is preferable.Also, entire test process is blocked by control driving mechanism 110, from
Dynamicization degree is higher, therefore operates more convenient.
In the optinal plan of the present embodiment, more preferably, driving mechanism 110 includes support frame 111 and the first cylinder
112。
Above-mentioned support frame 111 has vertical supporting frame 1111 and cross-brace frame 1112, has in the middle part of cross-brace frame 1112
There is cavity, slots in the middle part of vertical supporting frame 1111.Above-mentioned cross-brace frame 1112 is fixed on bottom plate (not to be marked in bottom plate attached drawing
Number), fixed form for example can be threaded connection etc..
Above-mentioned first cylinder 112 is installed on the cross-brace frame of support frame 111, output shaft passes through vertical supporting frame
1111 middle part fluting, also, the end of output shaft is equipped with the first seal assembly 120.In more detail, the first cylinder 112
Drive the first seal assembly 120 to the outlet end motion of exhaust manifold until the first seal assembly 120 and row in first stroke
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 first stroke
The output shaft of second stroke, the first cylinder 112 continues during forward extending out, and the first cylinder 112 is by the anti-of exhaust manifold
Active force, so that the first cylinder 112 retracts, the relatively transverse support frame 1112 of the first cylinder 112 moves backward at this time.
In the optinal plan of the present embodiment, more preferably, Hui Gou mechanism 130, including it is installed on 112 end of the first cylinder
Plug rack 131, be installed on the rolling assembly 132(attached drawing 3 and Fig. 4 of 1112 inner cavity of cross-brace frame) and be installed on transverse direction
The guidance set 133(attached drawing 3 and Fig. 4 of 1112 side of support frame)；Rolling assembly 132 is used for the second row in driving 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 pin shaft of the cage connection of frame 1112 and the multiple idler wheels being set on pin shaft, the first cylinder 112 are contacted with idler wheel.
Above-mentioned, guidance set 133 includes the guide plate for being installed on 1112 two sides of cross-brace frame, guide plate lower part and transverse direction
Support frame 1112 is detachably connected, the outside face contact on guide plate top and 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 guarantee that the first cylinder 112 linearly moves always in back off procedure, avoid shifting.
It is above-mentioned, plug rack 131, including support plate 1311 and it is installed on 1311 end face of support plate and and support plate
Two vertical L shape hooks 1312 of 1311 end face.1311 middle part aperture of support plate, the output shaft for the first cylinder 112 stretch out.
Inwardly, and the hook portion of L shape hook 1312 is for catching on exhaust discrimination in 110 second stroke of driving mechanism for the hook portion of L shape hook 1312
The flange back of the outlet side of pipe.
In the optinal plan of the present embodiment, more preferably, the first seal assembly 120 includes the first gasket 121 and the
One sealing closure plate 122, first seals the output axis connection of closure plate 122 and the first cylinder 112 and is located at vertical supporting frame 1111
Outside, the first 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 please referred 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 be integrally formed with integrally connected,
Can be with split settings, welding fabrication in an assembling process.
Annular groove is provided in 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
The screw thread of one interconnecting piece, 1221 outlet port setting protrudes into the annular groove；
First bayonet lock 1223 is set to the side away from the first connecting portion 1221 of first main part, week
There is card slot to direction, the card slot is for accommodating first gasket 121；The structure of bayonet lock and card slot can facilitate first
The installation and replacement of gasket.It is connected by screw to closure plate and gasket in the prior art, or passes through gluing.
The first sealing closure plate 122, can do the random angle in space using the connector of first cylinder 112 as basic point
The adaptive fine tuning of degree.
Embodiment 2
A kind of exhaust manifold airtight detecting apparatus is present embodiments provided, is blocked including the outlet flange in embodiment 1
Device 100 further includes inlet flange plugging device 200；
Inlet flange plugging device 200 includes: backing plate 210, sealing ring 220, the air inlet being set in sealing ring 220
230, it is installed on the positioning mechanism for connecing mounting hole 240 fastly and be set on backing plate 210 of 210 side of backing plate.Mounting hole is connect fastly
240 are connected to air inlet 230, and air-flow flows to air inlet 230 by connecing mounting hole 240 fastly, are then entered by air inlet 230 and are vented
In manifold.Positioning mechanism includes the dowel hole being set on backing plate 210, and the positioning pin being installed in dowel hole, is determined
Positioning of the position mechanism for the inlet end of exhaust manifold.
In the optinal plan of the present embodiment, more preferably, exhaust manifold airtight detecting apparatus further includes exhaust manifold pressure
Tight device 300.Exhaust manifold pressing device 300 includes at least one exhaust manifold compressing unit.Exhaust manifold compressing unit packet
Include the second cylinder 310,310 support rod 320 of the second cylinder, cylinder connector 330, pressing plate 340,340 bracket 350 of pressing plate and connection
Plate 360.Second cylinder, 310 support rod 320 is installed on 310 bottom end of the second cylinder, for raising the second cylinder 310 to reserve operation
Space.Cylinder connector 330 is installed on the bottom surface of the second cylinder 310.340 one end of pressing plate is articulated with the end of cylinder connector 330, separately
One end extends to the upper surface of exhaust manifold.340 bracket 350 of pressing plate and 310 support rod 320 of the second cylinder are parallel and close
One end away from cylinder connector 330 of pressing plate 340.360 plate face of connecting plate is parallel with the plane where pressing plate 340, lower end and pressure
340 bracket 350 of plate is flexibly connected, and upper end is flexibly connected with pressing plate 340.
In the optinal plan of the present embodiment, more preferably, exhaust manifold airtight detecting apparatus further includes that connection neck seal is stifled
Device 400, connection neck seal block apparatus 400 include that two connection neck seals block up unit, and two connection neck seals block up unit and are respectively in exhaust
The two sides of manifold, and two connection neck seals block up central axes of the line perpendicular to outlet flange plugging device 100 of unit, connection
Neck seal blocks up the neck opening that unit is used to block exhaust manifold.It includes 420 bracket 410 of third cylinder, that connection neck seal, which blocks up unit,
Three cylinders 420 and the second seal assembly 430.420 bracket 410 of third cylinder has mounting hole.Third cylinder 420 is installed on
The output shaft of three cylinders, 420 bracket 410 and third cylinder 420 passes through 420 bracket 410 of third cylinder.Second seal assembly 430
It is connect with the end of the output shaft of third cylinder 420, for blocking the connection neck of exhaust manifold.Second seal assembly 430 includes
Second gasket 431 and the second sealing closure plate 432, the output axis connection of the second sealing closure plate 432 and third cylinder 420, second
Gasket 431 is installed on the outside of the second sealing closure plate 432, and the connecting neck portion for blocking exhaust manifold is open.Specifically
Ground please refers 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 integrally formed with integrally connected, can also be with
Split settings, in an assembling process welding fabrication.
Annular groove is provided in 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 protrudes into the annular groove；
Second bayonet lock 4323 be set to second main part 4322 away from the one of the second connecting portion 4321
Side, circumferential direction have card slot, and the card slot is for accommodating second gasket 431.The structure of bayonet lock and card slot can be square
Just the installation and replacement of the second gasket.It is connected by screw to closure plate and gasket in the prior art, or passes through gluing.
The second sealing closure plate 432, can do spatially at any angle using the second cylinder connector as basic point
Adaptive fine tuning.
Embodiment 3
Present embodiments provide a kind of airtight detection method of exhaust manifold, including 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 positioning mechanism of flange plugging device 200 is positioned and is sealed by the sealing ring 220 of inlet flange plugging device 200；
S2: starting exhaust manifold pressing device 300, so that the free end of pressing plate 340 applies compaction pressure to exhaust manifold；
S3: starting outlet flange plugging device 100, driving mechanism 110 carry out 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 mechanism
130 plug rack 131 exceeds the first seal assembly 120；After first stroke, driving mechanism 110 carries out second stroke,
First cylinder 112 moves forward, and driving 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 mechanism 130 catches on the flange back of the outlet side of exhaust manifold, thus the row of avoiding
Gas manifold stress during blocking gas outlet；
S4: starting connection neck seal block apparatus 400, third cylinder 420 drive neck of second seal assembly 430 to exhaust manifold
Portion's aperture position is mobile until blocking neck opening.
S5: the connection neck seal block apparatus 400, institute are successively unclamped in starting air inlet detection valve inflation detection after detection
State outlet flange plugging device 100, the exhaust manifold pressing device 300；The outlet flange plugging device 100 is unclamping
When, driving mechanism 110 carries out the first backhaul, and the first cylinder 112 drives the first seal assembly 120 to be detached from the exhaust manifold outlet
Flange face to support frame as described above 111 vertical supporting frame 1111, in 1111 reaction force of vertical supporting frame of support frame as described above 111
Under, driving mechanism 110 carries out the second backhaul, and the first cylinder 112 drives the Hui Gou mechanism 130 to be detached from the exhaust manifold outlet
The flange face back side, to facilitate the loading, unloading of workpiece.
In addition, also it should be added that, completing outlet flange during carrying out disassembly operation in experiment and blocking
The course of work of device 100 is summarized as follows:
The first seal assembly 120 is driven to retreat for first cylinder 112 until the first seal assembly 120 is resisted against vertical supporting frame
1111, stop motion under the action of vertical supporting frame 1111 of the first seal assembly 120, but at this point, 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 mechanism 130 being installed on the first cylinder 112, so that Hui Gou mechanism 130 is detached from product, workpiece are facilitated to tear open
It unloading, in entire test process, the closure power of outlet flange plugging device 100 does not pass to exhaust manifold, other regions, such as into
The sealing of the positions such as gas flange, connection neck is unaffected, and sealing effect is preferable.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of outlet flange plugging device is used for exhaust manifold airtight detecting apparatus characterized by comprising
Driving mechanism (110), be installed on the driving mechanism (110) output end the first seal assembly (120) and installation
In the Hui Gou mechanism (130) of the driving mechanism (110)；
The driving mechanism (110) has first stroke and second stroke；
In the first stroke of the driving mechanism (110), the driving mechanism (110) drives first seal assembly
(120) close to the gas outlet of the exhaust manifold, and the Hui Gou mechanism (130) exceeds first seal assembly (120)；
In the second stroke of the driving mechanism (110), the driving mechanism (110) is continued to apply to the exhaust manifold and be made
Firmly, it retracts under the reaction force of the exhaust manifold and drives the Hui Gou mechanism (130) until the Hui Gou mechanism
(130) the outlet flange back of the exhaust manifold is caught in end.
2. outlet flange plugging device according to claim 1, which is characterized in that
The driving mechanism (110) includes:
Support frame (111) has vertical supporting frame (1111) and cross-brace frame (1112), in the cross-brace frame (1112)
Portion has cavity, fluting in the middle part of the vertical supporting frame (1111)；
First cylinder (112) is installed on the cross-brace frame of support frame as described above (111), output shaft passes through the vertical supporting
The middle part of frame (1111) is slotted, also, the end of the output shaft is equipped with first seal assembly (120).
3. outlet flange plugging device according to claim 2, which is characterized in that
Hui Gou mechanism (130), including being installed on the plug rack (131) of the first cylinder (112) end, being installed on the cross
To support frame (1112) inner cavity rolling assembly (132) and be installed on the guidance set of cross-brace frame (1112) side
(133)；The rolling assembly (132) in the second stroke of the driving mechanism (110) for supporting the driving mechanism
(110) it retracts, the guidance set (133) includes the guide plate for being installed on cross-brace frame (1112) two sides, described to lead
It is detachably connected to plate lower part and the cross-brace frame (1112), the guide plate top and first cylinder (112)
Outside face contact.
4. outlet flange plugging device according to claim 3, which is characterized in that
The plug rack (131) include support plate (1311) and be installed on the support plate (1311) end face and with institute
State two vertical L shape hooks (1312) of the end face of support plate (1311)；
Aperture in the middle part of the support plate (1311), the output shaft for first cylinder (112) stretch out；
The hook portion of the L shape hook (1312) inwardly, and the hook portion of the L shape hook (1312) be used in the driving mechanism
(110) the flange back of the outlet side of the exhaust manifold is caught in second stroke.
5. outlet flange plugging device according to claim 4, which is characterized in that
The rolling assembly (132) includes the central cavity and both ends and the cross for being built in the cross-brace frame (1112)
Pin shaft to the cage connection of support frame (1112) and multiple idler wheels for being set on the pin shaft, first cylinder
(112) it is contacted with the idler wheel.
6. outlet flange plugging device according to claim 5, which is characterized in that
First seal assembly (120) includes the first gasket (121) and the first sealing closure plate (122)；
First sealing closure plate (122) includes first connecting portion (1221), the first main part (1222) and the first bayonet lock
(1223)；
It is provided with annular groove in 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 protrudes into the annular groove；
First bayonet lock (1223) is set to the side away from the first connecting portion (1221) of first main part, week
There is card slot to direction, the card slot is for accommodating first gasket (121)；
First sealing closure plate (122), can do the random angle in space using the connector of first cylinder (112) as basic point
The adaptive fine tuning of degree.
7. a kind of exhaust manifold airtight detecting apparatus, which is characterized in that block and fill including outlet flange as claimed in claim 6
It sets, further includes inlet flange plugging device (200)；
The inlet flange plugging device (200) includes:
Backing plate (210), the air inlet (230) being set in the sealing ring (220), is installed on the backing plate at sealing ring (220)
(210) positioning mechanism for connecing mounting hole (240) fastly and be set on the backing plate (210) of side；
The mounting hole (240) that connects fastly is connected to the air inlet (230), and air-flow connects mounting hole (240) flow direction by described fastly
The air inlet (230) is then entered in the exhaust manifold by the air inlet (230)；
The positioning mechanism includes the dowel hole being set on the backing plate (210), and is installed in the dowel hole
Positioning pin, the positioning mechanism for the exhaust manifold inlet end positioning.
8. exhaust manifold airtight detecting apparatus according to claim 7, which is characterized in that the airtight detection of exhaust manifold
Equipment further 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) is installed on the second cylinder (310) bottom end, for raising second cylinder (310)
To reserve working space；
Cylinder connector (330) 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 8, which is characterized in that
The exhaust manifold airtight detecting apparatus further 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 two sides that unit is respectively in the exhaust manifold, the company
It connects neck seal and blocks up the neck opening that unit is used to block the exhaust manifold；
The connection neck seal blocks up unit
Third air cylinder support (410) has mounting hole；
Third cylinder (420), the output shaft for being installed on the third air cylinder support (410) and the third cylinder (420) are worn
Cross the third air cylinder support (410)；
Second seal assembly (430) is connect, for blocking the exhaust with the end of the output shaft of the third cylinder (420)
The connection neck of manifold；
Second seal assembly (430) includes the second gasket (431) and the second sealing closure plate (432)；
Second sealing closure plate (432) includes second connecting portion (4321), the second main part (4322) and the second bayonet lock
(4323)；
It is provided with annular groove in 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
The screw thread of the outlet port of two interconnecting pieces (4321) protrudes into the annular groove；
Second bayonet lock (4323) be set to second main part (4322) away from the second connecting portion (4321)
Side, circumferential direction have card slot, and the card slot is for accommodating second 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 tuning.
10. a kind of airtight detection method of exhaust manifold, which is characterized in that including the airtight inspection of exhaust manifold as claimed in claim 9
Measurement equipment:
The inlet end of exhaust manifold is installed on the inlet flange plugging device (200), the inlet end of the exhaust manifold by
The positioning mechanism positioning of inlet flange plugging device (200) and the sealing ring by the inlet flange plugging device (200)
(220) it seals；
Start the exhaust manifold pressing device (300), so that the free end of pressing plate (340) applies compaction pressure to the exhaust
Manifold；
Start the outlet flange plugging device (100), driving mechanism (110) carries out first stroke, and the first cylinder (112) drives
First seal assembly (120) is close to the gas outlet of the exhaust manifold until blocking the gas outlet of the exhaust manifold, together with this
When, the plug rack (131) of Hui Gou mechanism (130) exceeds first seal assembly (120)；After first stroke, drive
Motivation structure (110) carries out second stroke, and the first cylinder (112) moves forward, and the driving mechanism (110) is in the exhaust
It retracts under the reaction force of manifold outlet flange against the idler wheel of rolling assembly (132), until the envelope of the Hui Gou mechanism (130)
Stifled bracket (131) catch on the flange back of the outlet side of the exhaust manifold, so that the exhaust manifold be avoided to block outlet
Stress during mouthful；
Start the connection neck seal block apparatus (400), third cylinder (420) drives the second seal assembly (430) Xiang Suoshu
The neck opening position of exhaust manifold is mobile until blocking the neck opening；
Start air inlet detection valve inflation detection, the connection neck seal block apparatus (400), the outlet are successively unclamped after detection
Flange plugging device (100), the exhaust manifold pressing device (300)；The outlet flange plugging device (100) is being unclamped
When, driving mechanism (110) carries out the first backhaul, and the first cylinder (112) drives the first seal assembly (120) to be detached from the exhaust discrimination
Pipe outlet flange face to support frame as described above (111) vertical supporting frame (1111), in the vertical supporting frame of support frame as described above (111)
(1111) under reaction force, driving mechanism (110) carries out the second backhaul, and the first cylinder (112) drives the Hui Gou mechanism (130)
It is detached from the exhaust manifold outlet flange face back side, to facilitate the loading, unloading of workpiece.
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| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710872935.2A CN107576452B (en) | 2017-09-25 | 2017-09-25 | Exhaust manifold airtight detecting apparatus and method |
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| CN107576452A CN107576452A (en) | 2018-01-12 |
| CN107576452B true CN107576452B (en) | 2019-04-16 |
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| CN112964424B (en) * | 2021-02-01 | 2023-03-10 | 江西樟树市福铃内燃机配件有限公司 | Pipeline damage detection equipment for internal combustion engine exhaust manifold |
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| US8567239B2 (en) * | 2011-06-16 | 2013-10-29 | Ford Global Technologies, Llc | Method and system for determining vacuum leaks |
| CN202547872U (en) * | 2012-04-25 | 2012-11-21 | 成都东方仪器有限公司 | Rapid leakage detection fixture |
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