CN207280701U - A kind of online test device for air tightness - Google Patents

A kind of online test device for air tightness Download PDF

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Publication number
CN207280701U
CN207280701U CN201721370757.5U CN201721370757U CN207280701U CN 207280701 U CN207280701 U CN 207280701U CN 201721370757 U CN201721370757 U CN 201721370757U CN 207280701 U CN207280701 U CN 207280701U
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China
Prior art keywords
inner core
support brace
air tightness
core pulling
test device
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CN201721370757.5U
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Chinese (zh)
Inventor
沈国双
裴明丰
张晖
魏杰
汪伟
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Dynamo-Electric Co Ltd Of Wuhan United Airlines Inc
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Dynamo-Electric Co Ltd Of Wuhan United Airlines Inc
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Abstract

The utility model belongs to air-leakage test technical field, disclose a kind of online test device for air tightness, including pulling assembly, inner core pulling, external position limited sleeve and sealing ring, one end of the pulling assembly connects the inner core pulling, the inner core pulling is in axial direction provided with exhaust pipe, the external position limited sleeve is arranged on the outside of the inner core pulling, the inner core pulling opposite can be slided with the external position limited sleeve, the one end of the inner core pulling away from the pulling assembly is provided with shoulder, the annular groove for being used for housing the sealing ring is formed between the upper surface of the shoulder and the lower face of the external position limited sleeve.The utility model can realize the high-seal of the online test device for air tightness and part to be measured and quickly coordinate and depart from, and occupy little space, easy to operate, strong applicability, be adapted to the air-tightness on-line checking of endoporus.

Description

A kind of online test device for air tightness
Technical field
It the utility model is related to air-leakage test technical field, more particularly to a kind of online test device for air tightness.
Background technology
The air-tightness of test product endoporus, the standard of the air tightness test of endoporus are frequently necessary in automatic assembling and detection line True property is needed premised on test fixture and measured workpiece reach extraordinary air-proof condition, meanwhile, on-line testing needs to test Light and handy convenient, the easy movement of frock, while cooperation can be quickly sealed with test product and quickly departed from, to improve entirety The beat of test.And existing online air tightness test frock is mostly bulky, inconvenient, and can not realize and test product Fast sealing coordinate and be rapidly separated.
Utility model content
The purpose of this utility model is to provide a kind of online test device for air tightness, which can realize and part to be measured High-seal and quickly coordinate and depart from, and occupy little space, easy to operate, strong applicability, is adapted to the air-tightness of endoporus On-line checking.
For this purpose, the utility model uses following technical scheme:
A kind of online test device for air tightness, including pulling assembly, inner core pulling, external position limited sleeve and sealing ring, the tension One end of component connects the inner core pulling, and the inner core pulling is in axial direction provided with exhaust pipe, the outside of the inner core pulling The external position limited sleeve is arranged, the inner core pulling opposite can be slided with the external position limited sleeve, and the inner core pulling is away from the tension group One end of part is provided with shoulder, is formed between the upper surface of the shoulder and the lower face of the external position limited sleeve for accommodating described The annular groove of sealing ring.
Preferably, further including driving device and floating junction, the output shaft of the driving device is connect by the floating Head connects the pulling assembly.Driving device provides driving force for the slip of inner core pulling, by floating junction can realize cylinder with The flexible connection of pulling assembly so that cylinder in the extent of the error of permission can also stable action normal work.
Preferably, the pulling assembly includes upper support brace, inner column and lower support brace, the upper support brace passes through institute State floating junction and be connected to the output shaft, the lower support brace is removably connected with the inner core pulling, the inner column position Between the upper support brace and lower support brace, the upper support brace and the lower support brace are supported for connecting.
Pulling assembly one end is connected to the cylinder of power source, and the other end connects inner core pulling, plays the work of passing power With;Upper support brace, lower support brace and inner column collectively form " lantern structure ", should " lantern structure " easy to inner core pulling dismounting with Replace.
Preferably, further including upper mounted plate, bottom plate and outer column, the bottom plate is fixed on test equipment On, the external position limited sleeve is removably connected to the lower face of the bottom plate, one end of the outer column be fixed in it is described under Fixed plate, the affixed fixed plate of the other end, driving device described in the upper surface fixed placement of fixed plate, it is described on Fixed plate, outer column and bottom plate form frame structure and are used for accommodating the pulling assembly.
Outer column is used to connect support upper mounted plate and bottom plate, and external position limited sleeve is fixed in detection process, is Inner core pulling provides guiding and position-limiting action.
Preferably, the upper end of the inner core pulling is provided with seal nipple connecting interface, it is connected with the exhaust pipe It is logical, it is evacuated for connecting tracheae.
After the airtight test device is installed in place, tracheae is evacuated the endoporus of workpiece for measurement by the interface, into And detect its air-tightness.
Preferably, being fixedly installed block on the bottom plate, the block is close to the lower support brace and is set, and uses Rotated in preventing the pulling assembly.
During the output shaft of driving device pulls up inner core pulling by pulling assembly, since pulling assembly is vacantly set Put, it is described to rotate, therefore set block to prevent its rotation, and then ensure the stabilization of driving device lifting process Property.
Preferably, further including pressure reducing valve, the pressure reducing valve is fixed on fixed plate side, for adjusting the drive The tightening force of dynamic device.
Pressure reducing valve adjusts the upper lifting clamp force of driving device according to actual conditions, ensures that excessive deformation does not damage sealing ring It is bad.
Preferably, fixed plate and the bottom plate are rectangular configuration, the outer column is four, respectively It is arranged at the four corners of fixed plate.
The four corners that outer column is located at upper mounted plate can play upper mounted plate good supporting role, and be opposite to it Interior pulling assembly plays a good protective effect.
Preferably, the upper support brace is identical with the lower tension board size, and it is rectangular configuration, it is described interior vertical Column is four, is placed in the four corners of the upper support brace and the lower support brace.
Upper support brace is identical with lower tension board size and inner column by four corners connects, and compact overall structure consolidates, Upper lifting clamp force can be preferably transmitted as force transferring part.
Preferably, the driving device is cylinder.
Compared with prior art, the advantages of the utility model and beneficial effect is:
1) upper lifting clamp force is transferred to inner core pulling, interior pumping by cylinder as power source by floating junction and pulling assembly Opposite slip occurs under the guiding of external position limited sleeve and position-limiting action with external position limited sleeve for core, so as to extrude the sealing in annular groove Circle, sealing ring are subject to axial force to be deformed, and the endoporus gluing, sealing with part to be measured, completes the air tightness detection apparatus with treating Survey product fast sealing coordinate, the process take it is very short and easy to operate time saving and energy saving, sealing it is reliable and stable.
2) inner core pulling is internally provided with the exhaust pipe of perforation, after test device assembling in place, passes through exterior gas Manage the seal nipple connecting interface set with inner core pulling upper end to be attached, the bore section of part to be measured is evacuated, so Follow-up test job is carried out afterwards, in this course, only by opening up exhaust pipe in inner core pulling, can realize pumping inspection The purpose of survey, simple in structure, handling ease are of low cost.
3) after test job, output shaft stretches out cylinder can complete being rapidly separated for the test device and part to be measured, It is easy to operate, it is time saving and energy saving.
4) device volume is light and handy, occupies little space, strong applicability, is a kind of portable of suitable endoporus air tightness test On-line measuring device.
Brief description of the drawings
Fig. 1 is the front section view of the online test device for air tightness of the utility model;
Fig. 2 is partial enlarged view at A in Fig. 1 of the utility model;
Fig. 3 is the schematic diagram at a certain visual angle of online test device for air tightness of the utility model.
In figure:
1st, inner core pulling;2nd, external position limited sleeve;3rd, sealing ring;4th, driving device;5th, floating junction;6th, upper support brace;7th, it is interior vertical Column;8th, lower support brace;9th, upper mounted plate;10th, bottom plate;11st, outer column;12nd, block;13rd, pressure reducing valve;14th, part to be measured; 15th, mounting bracket;
101st, exhaust pipe;102nd, shoulder;401st, output shaft.
Embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Present embodiment discloses a kind of online test device for air tightness, as shown in Figs. 1-3, the online test device for air tightness Including pulling assembly, inner core pulling 1, external position limited sleeve 2 and sealing ring 3, one end connection inner core pulling 1 of pulling assembly, inner core pulling 1 is along axis Be provided with the exhaust pipe 101 for being located therein a position to direction, the outside of inner core pulling 1 is arranged external position limited sleeve 2, inner core pulling 1 with External position limited sleeve 2 opposite can slide, and the one end of inner core pulling 1 away from pulling assembly is provided with shoulder 102, the upper surface of shoulder 102 with Formed between the lower face of external position limited sleeve 2 and be used to house the annular groove (not shown) of sealing ring 3, the device with it is to be measured During the sealing assembling of part 14, the annular groove and the sealing ring 3 in it are placed in the endoporus of part 14 to be measured.It is close in the present embodiment O-ring is selected in seal 3, and O-ring structure is simple, adaptable, convenient for disassembly and assembly, of low cost.
In the present embodiment, the upper end of inner core pulling 1 is additionally provided with seal nipple connecting interface (not shown), with pumping Pipeline 101 is connected, and is evacuated for connecting tracheae.After the airtight test device is sealingly mounted to position with part 14 to be measured, gas Pipe is connected by the interface with exhaust pipe 101, and then realizes the connection with the endoporus of workpiece for measurement, then passes through above-mentioned tracheae The endoporus of workpiece for measurement is evacuated, through pressurize after a while after pumping, detects the pressure change in bore, So as to draw its air tightness test result.
In the present embodiment, which further includes driving device 4 and floating junction 5, driving device 4 Output shaft 401 connects pulling assembly by floating junction 5, and pulling assembly realizes flexible connect by floating junction 5 and output shaft 401 Connect so that cylinder in the extent of the error of permission can also stable action normal work.Further, in the present embodiment Driving device 4 is cylinder, and pulling assembly includes upper support brace 6, inner column 7 and lower support brace 8, and upper support brace 6 is connect by floating First 5 are connected with output shaft 401, and lower support brace 8 is removably connected with inner core pulling 1, and inner column 7 is located at upper support brace 6 and drop-down Between tight plate 8, upper support brace 6 and lower support brace 8 are supported for connecting.Specifically, upper support brace 6 and lower 8 size of support brace are complete It is exactly the same, it is rectangular configuration, and inner column 7 is four, is placed in the four corners of support brace 6 and lower support brace 8.Upper support brace 6 identical with lower 8 size of support brace and by four corners inner columns 7 connect, and three collectively forms " lantern structure ", should " lantern Structure " is easy to the dismounting and replacement of inner core pulling 1, and compact overall structure consolidates, and upper lifting can be preferably transmitted as force transferring part Clamp force.
In the present embodiment, which further includes upper mounted plate 9, bottom plate 10 and outer column 11, Bottom plate 10 is fixed in test equipment, and external position limited sleeve 2 is removably connected to the lower face of bottom plate 10, outer column 11 One end be fixed on bottom plate 10, the affixed upper mounted plate 9 of the other end, for connecting support upper mounted plate 9 and bottom plate 10, the upper surface fixed placement driving device 4 of upper mounted plate 9, upper mounted plate 9, outer column 11 and bottom plate 10 form frame Structure is used for accommodating pulling assembly.Specifically, upper mounted plate 9 and bottom plate 10 are rectangular configuration, the two size is all higher than The size of upper support brace 6 and lower support brace 8, and the size of bottom plate 10 is not less than the size of upper mounted plate 9, bottom plate 10 Both sides of the edge at be additionally provided with the mounting bracket 15 of right angled triangle, for bottom plate 10 to be fixedly mounted on test equipment On;Outer column 11 is four, is respectively positioned on the outside of inner column 7 and height is more than inner column 7, be respectively arranged at the four of upper mounted plate 9 At angle, good supporting role can be played to upper mounted plate 9, and opposed pulling assembly in the inner plays good protection and makees With.Since bottom plate 10 is fixed in test equipment, the external position limited sleeve 2 being arranged on is fixed not in detection process It is dynamic, provide guiding and position-limiting action for inner core pulling 1.
In the present embodiment, block 12 is further fixedly arranged on bottom plate 10, block 12 is close to lower support brace 8 and is set, and uses Rotated in preventing pulling assembly.During the output shaft 401 of driving device 4 pulls up inner core pulling 1 by pulling assembly, due to Pulling assembly is vacantly set, it may occur that is rotated, therefore is set block 12 to prevent its rotation, and then ensures that driving device 4 carries It is pulled through the stability of journey.
In the present embodiment, which further includes pressure reducing valve 13, and pressure reducing valve 13 is fixed on upper mounted plate 9 Side, pressure reducing valve 13 adjust the upper lifting clamp force of driving device 4 according to actual conditions, ensure that excessive deformation does not occur sealing ring 3 Damage.
The course of work of the present embodiment is:
Part 14 to be measured is positioned as location tray (not shown) moves to the airtight detection station, and positioning is completed The online test device for air tightness declines afterwards, stops when inner core pulling 1 and sealing ring 3 drop to the predeterminated position of 14 endoporus of part to be measured Only decline, then the output shaft 401 of driving device 4 is retracted, the upper lifting clamp force of generation by floating junction 5, upper support brace 6, Inner column 7, lower support brace 8 are transferred to inner core pulling 1, and inner core pulling 1 occurs to slide relatively with external position limited sleeve 2, to being arranged at inner core pulling 1 Sealing ring 3 in annular groove between external position limited sleeve 2 is compressed axially, sealing ring 3 be deformed so as to part to be measured 14 endoporus gluing, sealing, so far, the online test device for air tightness assemble in place with part 14 to be measured;Then taken out in tracheae connection 1 upper end of core set seal nipple connecting interface, connected with the exhaust pipe 101 inside inner core pulling 1, so with part 14 to be measured Endoporus be connected, its inner cavity is evacuated, through pressurize after a while after pumping, detects the pressure in bore Change, so as to draw its air tightness test result;Test terminates 401 stretches out cylinder of rear output shaft and completes the test device with treating Survey being rapidly separated for part 14.
The online test device for air tightness of the utility model is allowed to deform by compressing axially sealing ring 3, thus with it is to be measured The endoporus gluing, sealing of part 14, realizes the quick assembling of the device and part 14 to be measured, and the structural principle is simple, is swift in motion, and leads to Over-driving device 4 is used cooperatively in control with pressure reducing valve 13 and lifts clamp force, convenient reliable.After test job, output shaft 401 Stretches out cylinder can complete being rapidly separated for the test device and part 14 to be measured, easy to operate, time saving and energy saving.The device volume is light Ingeniously, occupy little space, strong applicability, is a kind of portable on-line measuring device of suitable endoporus air tightness test.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the field, in described above On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments It is exhaustive.All any modification, equivalent and improvement made where within the spirit and principles of the present invention etc., should be included in Within the protection domain of the utility model claims.

Claims (10)

  1. A kind of 1. online test device for air tightness, it is characterised in that including pulling assembly, inner core pulling (1), external position limited sleeve (2) and Sealing ring (3), one end of the pulling assembly connect the inner core pulling (1), and the inner core pulling (1) is in axial direction provided with pumping Air pipe (101), is arranged the external position limited sleeve (2) on the outside of the inner core pulling (1), the inner core pulling (1) with it is described outer spacing Cover (2) opposite to slide, the one end of the inner core pulling (1) away from the pulling assembly is provided with shoulder (102), the shoulder (102) formed between upper surface and the lower face of the external position limited sleeve (2) and be used to house the annular recessed of the sealing ring (3) Groove.
  2. 2. online test device for air tightness according to claim 1, it is characterised in that further include driving device (4) and float Dynamic connector (5), the output shaft (401) of the driving device (4) connect the pulling assembly by the floating junction (5).
  3. 3. online test device for air tightness according to claim 2, it is characterised in that the pulling assembly includes upper tension Plate (6), inner column (7) and lower support brace (8), the upper support brace (6) are connected to the output by the floating junction (5) Axis (401), the lower support brace (8) are detachably connected with the inner core pulling (1), and the inner column (7) is located at the upper tension Between plate (6) and lower support brace (8), the upper support brace (6) and the lower support brace (8) are supported for connecting.
  4. 4. online test device for air tightness according to claim 3, it is characterised in that further include upper mounted plate (9), lower solid Fixed board (10) and outer column (11), the bottom plate (10) are fixed in test equipment, and the external position limited sleeve (2) is dismountable The lower face of the bottom plate (10) is connected to, one end of the outer column (11) is fixed in the bottom plate (10), separately The affixed fixed plate (9) in one end, driving device (4) described in the upper surface fixed placement of fixed plate (9), it is described on Fixed plate (9), outer column (11) and bottom plate (10) form frame structure and are used for accommodating the pulling assembly.
  5. 5. online test device for air tightness according to claim 1, it is characterised in that the upper end of the inner core pulling (1) Seal nipple connecting interface is provided with, is connected with the exhaust pipe (101), is evacuated for connecting tracheae.
  6. 6. online test device for air tightness according to claim 4, it is characterised in that fixed on the bottom plate (10) Block (12) is provided with, the block (12) is close to the lower support brace (8) and is set, for preventing the pulling assembly from rotating.
  7. 7. online test device for air tightness according to claim 4, it is characterised in that pressure reducing valve (13) is further included, it is described Pressure reducing valve (13) is fixed on the side of fixed plate (9), for adjusting the tightening force of the driving device (4).
  8. 8. online test device for air tightness according to claim 4, it is characterised in that fixed plate (9) with it is described Bottom plate (10) is rectangular configuration, and the outer column (11) is four, is respectively arranged at the corner of fixed plate (9) Place.
  9. 9. online test device for air tightness according to claim 3, it is characterised in that the upper support brace (6) with it is described Lower support brace (8) size is identical, is rectangular configuration, and the inner column (7) is four, is placed in the upper support brace (6) With the four corners of the lower support brace (8).
  10. 10. online test device for air tightness according to claim 2, it is characterised in that the driving device (4) is cylinder.
CN201721370757.5U 2017-10-19 2017-10-19 A kind of online test device for air tightness Active CN207280701U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721370757.5U CN207280701U (en) 2017-10-19 2017-10-19 A kind of online test device for air tightness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721370757.5U CN207280701U (en) 2017-10-19 2017-10-19 A kind of online test device for air tightness

Publications (1)

Publication Number Publication Date
CN207280701U true CN207280701U (en) 2018-04-27

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CN201721370757.5U Active CN207280701U (en) 2017-10-19 2017-10-19 A kind of online test device for air tightness

Country Status (1)

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CN (1) CN207280701U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112394556A (en) * 2020-12-17 2021-02-23 江西富益特显示技术有限公司 Attached equipment of full-automatic polaroid
CN113310646A (en) * 2021-07-30 2021-08-27 江苏科标医学检测有限公司 Sealing detector and sealing detection method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112394556A (en) * 2020-12-17 2021-02-23 江西富益特显示技术有限公司 Attached equipment of full-automatic polaroid
CN113310646A (en) * 2021-07-30 2021-08-27 江苏科标医学检测有限公司 Sealing detector and sealing detection method

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