CN106441723A - Automated air tightness testing machine - Google Patents

Automated air tightness testing machine Download PDF

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Publication number
CN106441723A
CN106441723A CN201610813513.3A CN201610813513A CN106441723A CN 106441723 A CN106441723 A CN 106441723A CN 201610813513 A CN201610813513 A CN 201610813513A CN 106441723 A CN106441723 A CN 106441723A
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CN
China
Prior art keywords
sliding seat
base
top base
sealing
bottom base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610813513.3A
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Chinese (zh)
Inventor
朱萍
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Tongxiang Xin Xin Intelligent Technology Co Ltd
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Tongxiang Xin Xin Intelligent Technology Co Ltd
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Publication date
Application filed by Tongxiang Xin Xin Intelligent Technology Co Ltd filed Critical Tongxiang Xin Xin Intelligent Technology Co Ltd
Priority to CN201610813513.3A priority Critical patent/CN106441723A/en
Publication of CN106441723A publication Critical patent/CN106441723A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/06Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
    • G01M3/08Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
    • G01M3/085Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for pipe joints or seals

Abstract

The invention discloses an automated air tightness testing machine, which relates to the field of sealing performance testing apparatus. The automated air tightness testing machine comprises a base; a sealing mechanism and a leak determination mechanism which are arranged on the base; and an air channel communication mechanism between the sealing mechanism and the leak determination mechanism. In order to solve the problems of inconvenient clamping, low efficiency, labor consuming, and high difficulty in the control of the extrusion force at an end portion by a conventional sealing performance testing method for a steel-plastic transfer joint, the invention provides the air tightness testing machine for a steel-plastic transfer joint, with high testing efficiency, convenient clamping and no extrusion at both ends of the steel-plastic transfer joint.

Description

A kind of automatic air tightness testing machine
Technical field
The present invention relates to automatization's air-tightness of adapter is moulded in sealing property test equipment field, more particularly to a kind of steel Test machine.
Background technology
Adapter moulded by steel, moulds adapter also known as PE steel, used as steel pipe and modeling pipe(Usually PE is managed, i.e. polyethylene tube) Between conversion connector, have been widely used for gas ductwork and water conservancy and transport two important industries.Itself includes lengths of steel pipes With modeling pipeline section, formed by lengths of steel pipes and the relative clamping of each one end open of modeling pipeline section, and sealing ring, outside are set in access section and set Putting metal clip increases sealing effectiveness, and overall appearance is in three sections of end to end cylinders, and interlude external diameter(Outside joint section Footpath)More than two sections of the external diameter in outside.But, sometimes due to product defects or assembly crewman's misoperation, lengths of steel pipes and modeling pipe Section in joint it is possible that reveal, the use if such product comes into the market, have larger potential safety hazard, therefore, Before steel modeling adapter dispatches from the factory, need to test through strict sealing property.
When prior art carries out sealing property detection to steel modeling adapter, generally sealed using silicagel pad or tendon Bovis seu Bubali pad etc. Pad is placed in steel modeling adapter two ends, while being clamped in the close of steel modeling adapter two ends with force application apparatus such as cylinder or jack Packing, so that two ends of sealing gasket and steel modeling adapter form sealing, the steel after whole sealing is moulded adapter Being immersed in the water, then compressed gas are passed through toward inside steel modeling adapter, checks its sealing property by observing bubble.
Above-mentioned test method has the disadvantages that:1st, operating process complexity, its frame heavier-weight, need to be by external equipment Frame is immersed in the water, and the installation of steel modeling adapter is also more bothered;2nd, by cylinder or the modeling conversion of jack pair steel Joint two ends carry out the mode of crush seal, the more difficult control of dynamics, and dynamics is too small, are difficult to seal steel modeling adapter end;Power Spend greatly, be easily damaged steel modeling adapter.Also, the sealing means of end extruding do not meet Standard, easily cause inspection Erroneous judgement in survey.
Content of the invention
Current steel modeling adapter sealing property method of testing clamping is inconvenient, efficiency is low, expense people in order to solve for the present invention Power, end extruding force problem more rambunctious, a kind of testing efficiency height of proposition, convenient mounting and clamping, steel modeling adapter two ends are no squeezed The steel modeling adapter air tightness test machine of pressure.
To achieve these goals, the present invention is employed the following technical solutions:A kind of automatic air tightness testing machine, the bottom of including Seat, the sealing mechanism being arranged on base and Pan Lou mechanism and the gas circuit being arranged between sealing mechanism and Pan Lou mechanism connect Logical mechanism;
Described sealing mechanism includes top base, upper sliding seat, bottom base, lower sliding seat;Described bottom base in upper end open, Lower end is with the end barrel-shaped, and described lower sliding seat longitudinal section is in an inverted "convex" shaped, internal upper and lower ends insertion, under Slidably stretch on the downside of sliding seat in bottom base upper end open, between bottom base upper end and lower sliding seat, some springs be provided with, Lower sliding seat lower end is designed with beveled edge portion with bottom base inwall, and two beveled edge portions form the lower limit extruding groove of sealing ring, lower limit Lower crush seal circle is provided with position extruding groove;Described top base and upper retractable seat are just gone up in bottom base and lower sliding seat Side, top base is in lower ending opening, upper end is with the end is inverted barrel-shaped, described upper sliding seat longitudinal section in a "convex" shaped, Internal upper and lower ends insertion, slidably stretches on the upside of upper sliding seat in bottom base lower ending opening, and upper sliding seat is provided with some Bolt played by plug through top base, and the plug between top base and upper sliding seat is beaten on bolt and is arranged with spring, upper sliding seat upper end Beveled edge portion is designed with top base inwall, two beveled edge portions form the upper limit extruding groove of sealing ring, set in upper limit extruding groove There is upper crush seal circle;There is the activity for being used for crush seal between upper sliding seat and lower sliding seat described lower sliding seat upper end Seat sealing ring;Top base is located at upper crush seal circle upper portion inner chamber or bottom base is located in lower crush seal circle lower portion Chamber is connected with external pressurized air source;On the inside of described top base, the center of upper bottom portion is fixed with a guide post, described Guide post passes through upper sliding seat intermediate throughholes, and guide post lower end is consistently lower than upper sliding seat lower surface, guide post lower end outer rim Place is provided with chamfering;Described top base is positioned on one piece of lifter plate, and described lifter plate both sides respectively pass through a vertical light Bar is oriented to, and lifter plate is moved up and down by an air cylinder driven;
Described Pan Lou mechanism is a water tank equipped with water, and water storage pot bottom is provided with a valve;One is provided with water tank Individual bubble trap, described bubble trap is in lower ending opening, upper end inversion cup-shaped with the end, and internal bore is from lower to upper Taper into;On the downside of bubble trap, bore is located above valve, offers air vent, be provided with use on the upside of air vent on upper surface In the plug of closure air vent, on the downside of plug, pass through spring supporting;
Described gas circuit means of communication includes a connection block, is provided with a connection cavity and a driving in described connection block Cavity, is through to connection cavity and is provided with two test gas channels, be provided with one for closure two in connection cavity on connection block The sealing block of individual test gas channels;Driven cavity is through on connection block and is provided with driving gas channels, in driven cavity A piston is provided with, is connected by a connecting rod between piston and sealing block, piston is provided with for returning towards sealing block side The spring of plug is brought back to life, drives gas channels to be located at piston opposite side;
Described driving gas channels are located at upper crush seal circle upper portion inner chamber or lower base by driving trachea with top base Seat is located at lower crush seal circle lower portion inner space;Described two tests gas channels by testing trachea, one with Upper sliding seat or the connection of lower sliding seat inner lumen, another is connected with the valve of water storage pot bottom.
Preferably, described lifter plate is provided with the plug dipper crowding gear for pushing plug, described plug is pushed Mechanism includes a positioning tube and an expansion link, and described positioning tube is vertically stood on the downside of lifter plate, on described expansion link End is limited on the inside of positioning tube, can be moved up and down, and lower end is stretched on the outside of positioning tube;Bullet is provided with positioning tube on the upside of expansion link Spring, expansion link lower end is provided with the briquetting for pushing plug.
Preferably, described air vent is in up big and down small round table-like, described plug in the circle for mating with air vent Mesa-shaped.
Preferably, be located on described top base on upper crush seal circle upper portion inwall offering top base sealing Ring recess, is provided with top base V-shaped seal ring, and described top base V-shaped seal ring opening court in described top base seal groove To top base upper end;It is located on described bottom base on lower crush seal circle lower portion inwall and offers bottom base sealing ring Groove, is provided with bottom base V-shaped seal ring, and described bottom base V-shaped seal ring opening direction in described bottom base seal groove Bottom base lower end.
Preferably, described top base seal groove is provided with positioned at top base V-shaped seal ring open side helps air inlet chamfering; Described bottom base seal groove also is provided with helping air inlet chamfering positioned at bottom base V-shaped seal ring open side.
Preferably, described sealing block by seal matrix and sealing gasket laminating form, described sealing gasket is located towards Test gas channels side.
Preferably, described lifter plate is provided with two polished rod slide blocks, two polished rod slide blocks are corresponded with polished rod, light Bar slide block is set on corresponding polished rod and is slidably matched with corresponding polished rod.
Preferably, described bottom base intracavity bottom is provided with neonychium.
Preferably, described neonychium is silicagel pad.
Therefore, the present invention has the advantages that:1st, clamping, test automatically, human-saving, efficiency high;2nd, test block is no Water need to be entered, the impact such as will not cause to get rusty on steel part;3rd, Pan Lou mechanism is separately provided, and observation is convenient, and False Rate is low.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of test mode of the present invention.
Fig. 3 is the structure sectional view of sealing mechanism of the present invention.
Fig. 4 is the enlarged drawing in Fig. 3 at A.
Fig. 5 is the structure sectional view of sealing mechanism test mode of the present invention.
Fig. 6 is the partial sectional view of water tank in Pan Lou mechanism of the present invention.
Fig. 7 is the structure sectional view of Pan Lou mechanism of the present invention.
Fig. 8 is the structure sectional view of Pan Lou mechanism of the present invention test mode.
Fig. 9 is the structure sectional view of gas circuit means of communication of the present invention.
Figure 10 is the structure sectional view of gas circuit means of communication test mode of the present invention.
1:Base;2:Sealing mechanism;201:Top base;202:Upper sliding seat;203:Bottom base;204:Lower sliding seat; 205:Bolt played by plug;206:Sliding seat sealing ring;207:Lower crush seal circle;208:Upper crush seal circle;209:Top base is close Seal groove;210:Top base V-shaped seal ring;211:Bottom base seal groove;212:Bottom base V-shaped seal ring;213:Neonychium; 214:Help air inlet chamfering;215:Guide post;3:Pan Lou mechanism;301:Water tank;302:Valve;303:Bubble trap;304: Air vent;305:Plug dipper crowding gear;306:Positioning tube;307:Expansion link;308:Plug;309:Briquetting;4:Gas circuit connects machine Structure;401:Connection block;402:Connection cavity;403:Driven cavity;404:Test gas channels;405:Sealing block;406:Drive Gas channels;407:Reply piston;408:Connecting rod;409:Sealing matrix;410:Sealing gasket;5:Drive trachea;6:Test gas Pipe;7:External pressurized air source;8:Cylinder;9:Lifter plate;10:Polished rod;11:Polished rod slide block;12:Spring;13:Steel modeling conversion connects Head;14:Water level.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of automatic air tightness testing machine, referring to Fig. 1, Fig. 2, including base 1, the sealing mechanism being arranged on base 12 And Pan Lou mechanism 3 and the gas circuit means of communication 4 being arranged between sealing mechanism 2 and Pan Lou mechanism 3.
Described sealing mechanism 2 includes top base 201, upper sliding seat 202, bottom base 203, lower sliding seat 204, such as Fig. 3 To Fig. 5 shown in;Described bottom base 203 is in upper end open, lower end is with the end barrel-shaped, and 203 intracavity bottom of bottom base is provided with silicon The neonychium 213 of rubber cushion material.Described 204 longitudinal section of lower sliding seat is in an inverted "convex" shaped, internal upper and lower ends Insertion, the downside of lower sliding seat 204 is slidably stretched in 203 upper end open of bottom base, 203 upper end of bottom base and lower sliding seat Some springs 12 are provided between 204, and lower 204 lower end of sliding seat is designed with the beveled edge towards internal cavities with 203 inwall of bottom base Portion, two beveled edge portions form the lower limit extruding groove of sealing ring, are provided with lower crush seal circle 207 in lower limit extruding groove.Instantly When 204 upper end of sliding seat receives extruding, lower sliding seat 204 is moved down, two beveled edges between lower sliding seat 204 and bottom base 203 Portion is drawn close, and lower crush seal circle 207 is extruded contraction, moulds 13 hypomere outer wall of adapter so as to seal steel.203 upper end of bottom base With between lower sliding seat 204 spring 12 be used for lower sliding seat 204 rising reply, 204 upper end extruding force of sliding seat is released instantly After putting, lower sliding seat 204 rises to origin-location, so as to discharge lower crush seal circle 207.Meanwhile, on described bottom base 203 Offer bottom base seal groove 211 on 207 lower portion inwall of lower crush seal circle, described bottom base seal groove Bottom base V-shaped seal ring 212 is provided with 211, and 212 internal diameter of bottom base V-shaped seal ring moulds 13 lower semisection external diameter of adapter with steel Coupling, and described bottom base V-shaped seal ring opening, towards 203 lower end of bottom base, described bottom base seal groove 211 is located at 212 open side of bottom base V-shaped seal ring is provided with and helps air inlet chamfering 214, as shown in Figure 5.
Described top base 201 and upper sliding seat 202 are located at the surface of bottom base 203 and lower sliding seat 204, top base 201 in lower ending opening, upper end is with the end is inverted barrel-shaped, described 202 longitudinal section of upper sliding seat in a "convex" shaped, internal Upper and lower ends insertion, 202 upside of upper sliding seat is slidably stretched in 203 lower ending opening of bottom base, and upper sliding seat 202 is provided with Bolt 205 played by some plugs through top base 201, and the plug between top base 201 and upper sliding seat 202 is beaten sheathed on bolt 205 There is spring 12,202 upper end of upper sliding seat is designed with beveled edge portion with 201 inwall of top base, and two beveled edge portions form the upper of sealing ring Spacing extruding groove, is provided with crush seal circle 208 in upper limit extruding groove.When 202 lower end of upper sliding seat receives extruding upwards During power, move in upper sliding seat 202, two between upper sliding seat 202 and top base 201 beveled edge portion is drawn close, upper crush seal circle 208 are extruded contraction, mould 13 epimere outer wall of adapter so as to seal steel.Spring between top base 201 and upper sliding seat 202 12 are used for 202 rapid decrease of upper sliding seat, after the extruding force of 202 lower end of upper sliding seat discharges, 202 rapid decrease of upper sliding seat Origin-location is returned back to, so as to discharge upper crush seal circle 208.Described 204 upper end of lower sliding seat also has is used for upper sliding seat The sliding seat sealing ring 206 of crush seal between 202 and lower sliding seat 204.Meanwhile, upper squeezing is located on described top base 201 Top base seal groove 209 is offered on 208 upper portion inwall of pressure seal ring, is set in described top base seal groove 209 There is top base V-shaped seal ring 210,210 internal diameter of top base V-shaped seal ring is mated with steel modeling 13 upper semisection external diameter of adapter, and Described top base V-shaped seal ring opening is located at top base V towards 201 upper end of top base, described top base seal groove 209 210 open side of type sealing ring is provided with and helps air inlet chamfering 214.The center of described 201 inner side upper bottom portion of top base is also fixed There is a guide post 215, described 215 diameter of guide post is mated with steel modeling 13 upper semisection internal diameter of adapter, and guide post 215 is worn 202 intermediate throughholes of sliding seat are crossed, and 215 lower end of guide post is consistently lower than upper 202 lower surface of sliding seat, 215 lower end of guide post The chamfering being provided with outer rim for being oriented to;During so that top base 201 and upper sliding seat 202 sealing steel modeling adapter 13, it is oriented to Bar 215 can first stretch into steel modeling 13 upper port of adapter, and preferably positioning steel modeling adapter 13, is easy to steel modeling adapter 13 Upper end stretches into 202 lower ending opening of sliding seat exactly.
Top base 201 is connected with external pressurized air source 7 positioned at 208 upper portion inner chamber of upper crush seal circle;Described is upper Pedestal 201 is positioned on one piece of lifter plate 9, and described 9 both sides of lifter plate respectively pass through a polished rod being vertically fixed on base 1 10 are oriented to, and lifter plate 9 is provided with two polished rod slide blocks 11, and two polished rod slide blocks 11 are corresponded with polished rod 10, polished rod slide block 11 It is set on corresponding polished rod 10 and is slidably matched with corresponding polished rod 10, lifter plate 9 is inverted, by one, the gas being fixed on base 1 Cylinder 8 drives and moves up and down.
Described Pan Lou mechanism 3 is a water tank 301 equipped with water, and as shown in Figure 6 to 8,301 bottom of water tank sets Have a valve 302, in water tank 301, be provided with a bubble trap 303, described bubble trap 303 in lower ending opening, Upper end inversion cup-shaped with the end, and internal bore tapered into from lower to upper;303 downside bore of bubble trap is located at valve Directly over 302, air vent 304 on upper surface, is offered, described air vent 304 is in up big and down small round table-like;Air vent 304 Upside is provided with plug 308 for blocking air vent 304, described plug 308 in round table-like with what air vent 304 mated, and Plug 308 is located at the surface of air vent 304, and 308 downside of plug is supported by spring 12, and it is vertical that 12 inner side of spring is provided with positioning Post, in the case of not by external force, plug 308 is in and 304 disengaged position of air vent;Described lifter plate 9 is provided with for pushing away The plug dipper crowding gear 305 of pressure plug 308, described plug dipper crowding gear 305 includes a positioning tube 306 and an expansion link 307, described positioning tube 306 vertically stands on 9 downside of lifter plate, and described 307 upper end of expansion link is limited in positioning tube 306 Side, can move up and down, and lower end stretches in 306 outside of positioning tube;Spring 12 is provided with the positioning tube 306 of 307 upside of expansion link, stretches 307 lower end of contracting bar is provided with the briquetting 309 for pushing plug 308, and briquetting 309 can decline pushing plug 308 with lifter plate 9, enter And block air vent 304.In the case of plug dipper crowding gear 305 is not used, it is also possible to be pressed on plug 308 by weight Side, realizes plug 308 and declines closure air vent 304.
Described gas circuit means of communication 4 includes a connection block 401, as shown in Figure 9, Figure 10, in described connection block 401 A connection cavity 402 and a driven cavity 403 is provided with, and connection cavity 402 is through to from outer wall on connection block 401 and is provided with two Individual test gas channels 404, connect and are provided with a sealing block for blocking two test gas channels 404 in cavity 402 405, described sealing block 405 is formed by sealing matrix 409 and the laminating of sealing gasket 410, and described sealing gasket 410 is located towards surveying 404 side of gas testing paths;Driven cavity 403 is through to from outer wall on connection block 401 and driving gas channels 406 is provided with, A piston 407 is provided with driven cavity 403, is connected by a connecting rod 408 between piston 407 and sealing block 405, piston 407 are arranged with a spring 12 for replying piston 407 towards in the connecting rod 408 of 405 side of sealing block, drive gas circuit to lead to Road 406 is located at 407 opposite side of piston.Gas channels 406 are driven in the case of obstructed air pressure, as spring 12 is acted on, sealing block 405 in the states for blocking two test gas channels 404, do not connect between two test gas channels 404.
Lower crush seal is located at by driving trachea 5 with bottom base 203 at described 406 opening of external wall of driving gas channels Enclose 207 lower portion inner space;Respectively tested by one at two opening of external wall of two described test gas channels 404 Trachea 6, one is connected with lower 204 inner lumen of sliding seat, and another is connected with the valve 302 of 301 bottom of water tank.
Before test, first in water tank 301, a certain amount of water is poured into, 14 requirement of water level can be by whole bubble trap 303 It is immersed in the water, as shown in Figure 7.Steel modeling 13 one end of adapter is inserted from 204 upper end open of lower sliding seat, subsequently into lower base The inner chamber of seat 203, until conflict with the neonychium 213 of 203 intracavity bottom of bottom base, now, under steel modeling adapter 13 passes through The inner chamber of sliding seat 204 and bottom base 203 is spacing vertically to be stood in lower sliding seat 204 and bottom base 203.Start cylinder 8, cylinder 8 driving lifter plates 9 are moved down, and top base 201, upper sliding seat 202 and plug dipper crowding gear 305 are moved down with lifter plate 9.Lifting In 9 folding process of plate, steel modeling 13 upper port of adapter is first stretched in 215 lower end of guide post in top base 201, and positioning steel modeling turns Changing-over 13, then steel modeling 13 upper end of adapter pass through 202 endoporus of upper sliding seat, subsequently into 201 inner chamber of top base;With When, the expansion link 307 of plug dipper crowding gear 305 is displaced downwardly to lower end pressure block 309 and is conflicted with plug 308, is pushed then plug 308 and is inserted Enter to block the air vent 304 of bubble trap 303, stop moving down, subsequently by the spring 12 in compression set cylinder 306, go to fit Join positioning tube 306 and lifter plate 9 continue move down, as shown in Figure 8.Upper sliding seat 202 is displaced downwardly to is supported with lower 204 upper end of sliding seat Touch, extrude sliding seat sealing ring 206 Wei Yu upper sliding seat 202 and lower sliding seat 204 between, in realization sliding seat 202 with Sealing between sliding seat 204.Meanwhile, after upper sliding seat 202 and the conflict of lower sliding seat 204, cylinder 8 continues to make force, under Sliding seat 204 starts to extrude lower crush seal circle 207, and as 202 lower end of upper sliding seat is blocked, top base 201 also begins to squeeze Crush seal circle 208 in pressure, upper crush seal circle 208 and lower crush seal circle 207 are squeezed contraction, respectively sealing steel modeling conversion 13 two sections outer wall of joint, meanwhile, spring 12 between top base 201 and upper sliding seat 202 and lower sliding seat 204 and under Spring 12 between pedestal 203 is all extruded, and steel modeling 13 Butt Section of adapter is located at upper crush seal circle 208 and lower extruding is close Between seal 207.Common sealing due to upper crush seal circle 208, lower crush seal circle 207 and sliding seat sealing ring 206 is made With, steel modeling forms a sealing cavity on the outside of 13 Butt Section of adapter, now, the primary seal work of steel modeling adapter 13 Complete, as shown in Figure 5.
During test, external pressurized air source 7 is located at upper 208 upper portion of crush seal circle toward top base 201 and adds test gas Pressure, moulds the connection of 13 endoporus of adapter by steel, and bottom base 203 also has identical positioned at lower 207 lower portion of crush seal circle Measuring air pressure, and top base V-shaped seal ring 210 and bottom base V-shaped seal ring 212 are open both facing to being connected with measuring air pressure side, And open side is designed with helping air inlet chamfering 214, it is easy to gas to enter, tested person gas pressure, 210 He of top base V-shaped seal ring The opening expansion of bottom base V-shaped seal ring 212, is fitted with steel modeling 13 two sections outer wall of adapter respectively, realizes steel modeling conversion The secondary seal of 13 two sections outer wall of joint, and measuring air pressure is bigger, top base V-shaped seal ring 210 and bottom base V-seal The sealing effectiveness of circle 212 is better.Meanwhile, measuring air pressure enters the driving gas channels of gas circuit means of communication 4 by driving trachea 5 406, and then driven cavity 403 is entered, promote piston 407 to move down, also and then move down with 407 connected sealing block 405 of piston, two Connect between individual test gas channels 404, as shown in Figure 10.Now, the sealing cavity on the outside of steel modeling 13 Butt Section of adapter Connected with the valve 302 of 301 bottom of water tank by two test gas channels 404.
Being moulded inside adapter 13 due to steel has measuring air pressure, when steel modeling 13 Butt Section of adapter leaks, will The sealing cavity for having air pressure to enter on the outside of steel modeling 13 Butt Section of adapter, and then can emit at the valve 302 of 301 bottom of water tank Bubble, and bubble can be collected in the bubble trap 303 of the upside of valve 302, operator are readily viewed;If steel modeling turns 13 Butt Section of changing-over does not leak, and does not just have bubble generation at the valve 302 of 301 bottom of water tank.
After being completed, external pressurized air source 7 stops pressurization, and from pressurization mouth pressure release, 13 internal gas of steel modeling adapter Pressure disappears, and top base V-shaped seal ring 210 and bottom base V-shaped seal ring 212 lose sealing effectiveness, the driving of gas circuit means of communication 4 Measuring air pressure in cavity 403 also disappears, and is acted on by spring 12, and piston 407 is replied and risen, and sealing block 405 also and then rises Two test gas channels 404 of closure, as shown in Figure 9 so that valve 302 is disconnected with lower 204 inner lumen of sliding seat and connecting, and is prevented Only the aqueous reflux in water tank 301 enters test trachea 6, affects test result next time.After the completion of pressure release, startup cylinder 8 times Contracting, top base 201 is pulled up and slowly rises, and the extruding force between upper sliding seat 202 and lower sliding seat 204 fades away, also, Acted on by spring 12, two between upper sliding seat 202 and top base 201 beveled edge portion and lower sliding seat 204 and bottom base Two beveled edge portions between 203 start to open, and upper crush seal circle 208 and the expansion release steel modeling of lower crush seal circle 207 are changed 13 two sections outer wall of joint, until departing from steel 13 outer wall of modeling adapter, top base 201 and upper sliding seat 202 are with lifting Plate 9 returns to initial position.Meanwhile, the positioning tube 306 of plug dipper crowding gear 305 rises also with lifter plate 9, cylinder to be positioned 306 After inner spring 12 recovers to movable limiting length, expansion link 307 is pulled to rise, briquetting 309 is separated with plug 30, by plug The return action of 30 times lateral spring 12, plug 308 is also separated with air vent 304, if having bubble in bubble trap 303, Can discharge from air vent 304.Now, a steel modeling adapter 13 is completed, and operator only need to be from lower sliding seat 204 Adapter 13 moulded by the interior steel being completed that takes out, and is reentered into new steel to be measured modeling adapter 13, you can carry out next round Test.

Claims (9)

1. a kind of automatic air tightness testing machine, it is characterised in that:Including base(1), be arranged on base(1)On sealing mechanism (2)With Pan Lou mechanism(3), and be arranged on sealing mechanism(2)With Pan Lou mechanism(3)Between gas circuit means of communication(4);
Described sealing mechanism(2)Including top base(201), upper sliding seat(202), bottom base(203), lower sliding seat(204); Described bottom base(203)In upper end open, with the end barrel-shaped, the described lower sliding seat in lower end(204)Longitudinal section is in one Inverted "convex" shaped, internal upper and lower ends insertion, lower sliding seat(204)Downside slidably stretches in bottom base(203)Upper end In opening, bottom base(203)Upper end and lower sliding seat(204)Between be provided with some springs(12), lower sliding seat(204)Lower end with Bottom base(203)Inwall is designed with beveled edge portion, and two beveled edge portions form the lower limit extruding groove of sealing ring, in lower limit extruding groove It is provided with lower crush seal circle(207);Described top base(201)With upper sliding seat(202)Positioned at bottom base(203)With lower activity Seat(204)Surface, top base(201)In lower ending opening, upper end is with the end is inverted barrel-shaped, described upper sliding seat (202)Longitudinal section is in a "convex" shaped, internal upper and lower ends insertion, upper sliding seat(202)Upside slidably stretches in lower base Seat(203)In lower ending opening, upper sliding seat(202)It is provided with some through top base(201)Plug play bolt(205), upper base Seat(201)With upper sliding seat(202)Between plug play bolt(205)On be arranged with spring(12), upper sliding seat(202)Upper end with Top base(201)Inwall is designed with beveled edge portion, and two beveled edge portions form the upper limit extruding groove of sealing ring, in upper limit extruding groove It is provided with crush seal circle(208);Described lower sliding seat(204)Upper end also has is used for upper sliding seat(202)With lower sliding seat (204)Between crush seal sliding seat sealing ring(206);Top base(201)Positioned at upper crush seal circle(208)Upper portion Inner chamber or bottom base(203)Positioned at lower crush seal circle(207)Lower portion inner chamber and external pressurized air source(7)Connection;Described Top base(201)The center of inner side upper bottom portion is fixed with a guide post(215), described guide post(215)Pass through Upper sliding seat(202)Intermediate throughholes, and guide post(215)Lower end is consistently lower than upper sliding seat(202)Lower surface, guide post (215)Chamfering is provided with the outer rim of lower end;Described top base(201)It is positioned at one piece of lifter plate(9)On, described lifter plate (9)Both sides respectively pass through a vertical polished rod(10)It is oriented to, and lifter plate(9)By a cylinder(8)Driving moves up and down;
Described Pan Lou mechanism(3)For a water tank equipped with water(301), water tank(301)Bottom is provided with a valve (302);Water tank(301)A bubble trap is inside provided with(303), described bubble trap(303)In lower ending opening, on Inversion cup-shaped with the end is held, and internal bore is tapered into from lower to upper;Bubble trap(303)Downside bore is located at valve (302)Top, offers air vent on upper surface(304), air vent(304)Upside is provided with for blocking air vent(304)'s Plug(308), plug(308)Downside passes through spring(12)Support;
Described gas circuit means of communication(4)Including a connection block(401), described connection block(401)A connection is inside provided with Cavity(402)With a driven cavity(403), connect block(401)On be through to connection cavity(402)It is provided with two test gas circuits Passage(404), connect cavity(402)One is inside provided with for blocking two test gas channels(404)Sealing block(405); Connection block(401)On be through to driven cavity(403)It is provided with driving gas channels(406), driven cavity(403)Inside it is provided with One piston(407), piston(407)With sealing block(405)Between pass through a connecting rod(408)Connection, piston(407)Direction Sealing block(405)Side is provided with for replying piston(407)Spring(12), drive gas channels(406)Positioned at piston(407) Opposite side;
Described driving gas channels(406)By driving trachea(5)With top base(201)Positioned at upper crush seal circle(208) Upper portion inner chamber or bottom base(203)Positioned at lower crush seal circle(207)Lower portion inner space;Two described tests Gas channels(404)By testing trachea(6), one with upper sliding seat(202)Or lower sliding seat(204)Inner lumen is connected, Another and water tank(301)The valve of bottom(302)Connection.
2. a kind of automatic air tightness testing machine according to claim 1, it is characterised in that:Described lifter plate(9)On It is provided with for pushing plug(308)Plug dipper crowding gear(305), described plug dipper crowding gear(305)Position including one Cylinder(306)With an expansion link(307), described positioning tube(306)Lifter plate is vertically stood on(9)Downside, described expansion link (307)Upper end is limited in positioning tube(306)Inner side, can move up and down, and lower end stretches in positioning tube(306)Outside;Expansion link (307)The positioning tube of upside(306)Spring is inside provided with(12), expansion link(307)Lower end is provided with for pushing plug(308)Pressure Block(309).
3. a kind of automatic air tightness testing machine according to claim 1, it is characterised in that:Described air vent(304) In up big and down small round table-like, described plug(308)It is in and air vent(304)Mated is round table-like.
4. a kind of automatic air tightness testing machine according to claim 1, it is characterised in that:Described top base(201) Upper crush seal circle is above located at(208)Top base seal groove is offered on the inwall of upper portion(209), described top base is close Seal groove(209)Top base V-shaped seal ring is inside provided with(210), and described top base V-shaped seal ring opening is towards top base (201)Upper end;Described bottom base(203)Lower crush seal circle is above located at(207)Bottom base is offered on the inwall of lower portion Seal groove(211), described bottom base seal groove(211)Bottom base V-shaped seal ring is inside provided with(212), and described under Pedestal V-shaped seal ring opening is towards bottom base(203)Lower end.
5. a kind of automatic air tightness testing machine according to claim 1, it is characterised in that:Described top base sealing ring Groove(209)Positioned at top base V-shaped seal ring(210)Open side is provided with and helps air inlet chamfering(214);Described bottom base seal groove (211)Positioned at bottom base V-shaped seal ring(212)Open side also is provided with helping air inlet chamfering(214).
6. a kind of automatic air tightness testing machine according to claim 1, it is characterised in that:Described sealing block(405) By sealing matrix(409)And sealing gasket(410)Laminating is formed, described sealing gasket(410)It is located towards testing gas channels (404)Side.
7. a kind of automatic air tightness testing machine according to claim 1, it is characterised in that:Described lifter plate(9)On It is provided with two polished rod slide blocks(11), two polished rod slide blocks(11)With polished rod(10)Correspond, polished rod slide block(11)It is right to be set in Answer polished rod(10)Upper and with corresponding polished rod(10)It is slidably matched.
8. a kind of automatic air tightness testing machine according to any claim in claim 1 to 7, it is characterised in that: Described bottom base(203)Intracavity bottom is provided with neonychium(213).
9. a kind of automatic air tightness testing machine according to claim 8, it is characterised in that:Described neonychium(213) For silicagel pad.
CN201610813513.3A 2016-09-10 2016-09-10 Automated air tightness testing machine Pending CN106441723A (en)

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