CN105738051A - Bellows airtightness detection device and detection method therefor - Google Patents
Bellows airtightness detection device and detection method therefor Download PDFInfo
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- CN105738051A CN105738051A CN201610205803.XA CN201610205803A CN105738051A CN 105738051 A CN105738051 A CN 105738051A CN 201610205803 A CN201610205803 A CN 201610205803A CN 105738051 A CN105738051 A CN 105738051A
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- corrugated tube
- inner chamber
- air
- leakage test
- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
Abstract
A bellows airtightness detection device seals a pipeline end portion through an inner chamber plugging head and an outer wall sealing and clamping assembly, so that sealing space is formed in a pipeline inner chamber. Gas is injected to the sealing inner chamber through a gas injection hole. The airtightness performance of the bellows is detected by detecting the pressure change of the inner chamber through a pressure detection device. The bellows airtightness detection device has the characteristics of novel structure, simple operation, high precision of airtightness detection, and good consistency of bellows batch detection. At the same time, two detection fixtures which work independently are preferably arranged for one detection device. The detection of the two bellows can be performed at one station, and the double detection efficiency can be reached. Furthermore, considering that the bellows shakes under the action of an air pressure impact force in a process of injecting gas into the pipeline inner chamber, the whole outer wall sealing and clamping assembly which is optimally designed is a movable part, and the damage to the bellows caused by the vibration of the bellows in a detection process is overcome in comparison with a fixed device.
Description
Technical field
The invention belongs to corrugated tube air-leakage test technical field, concrete one relates to corrugated tube air tightness detection equipment and detection method thereof.
Background technology
Existing corrugated tube detection method detects typically via hydraulic pressure, and its detection means is sealed at corrugated tube two ends to be detected, is positioned in water after pressurization, judges whether body leaks according to or without bubbling, detects the air-tightness of corrugated tube with this.Water inspection working performance is low, and accuracy of detection is low, does not reach the detection needs of requirements for high precision corrugated tube, and water inspection simultaneously also can bring the waste of water resource and the pollution of water resource.
Separately, the mode of industry also paid gas testing inspection detects the air-tightness of pipeline, also air tightness detection equipment is thus produced, but, existing air tightness detection equipment is both for rigid conduit detection and makes, and equipment is not all detected accordingly for corrugated tube or even other elastic tube, rigid conduit detection equipment is not suitable for detection corrugated tube.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of corrugated tube air tightness detection equipment and detection method thereof, novel structure, easy to detect, reach double detection efficiency, the batch detection concordance of corrugated tube is good simultaneously.
For reaching above-mentioned purpose, technical scheme is as follows: a kind of corrugated tube air tightness detection equipment, including Electric Appliance Cabinet, the cabinet top of described Electric Appliance Cabinet is provided with workbench base plate, it is characterized in that: described workbench base plate is provided with some air-leakage test tools of work independence, described air-leakage test tool includes some inner chamber block heads that work is coordinated and outer wall sealed holding assembly, the end of corrugated tube described in sealing blocking that described inner chamber block head and outer wall sealed holding component operation coordinate, the described inner chamber block head of part is provided with injecting hole and the relief hole that work replaces, the described inner chamber block head of part is provided with pressure-detecting device, one end seals to stretch into and is provided with an air inlet pipe in injecting hole, described air inlet pipe is provided with intake valve and pressure regulator valve.
In a preferred embodiment of the present invention, farther include described workbench base plate is provided with two air-leakage test tools of work independence.
In a preferred embodiment of the present invention, farther include described outer wall sealed holding assembly and be respectively provided with stationary gripping part and the slip clamping part that split is arranged, drive described slip clamping part slip process or slip to move back first cylinder that is provided with of journey, during described slip clamping part process, block the end of described corrugated tube with described stationary gripping part fitted seal.
In a preferred embodiment of the present invention, what farther include can to dismantle on described workbench base plate is provided with two installing plates, air-leakage test tool described in two is fixed on respective installing plate one to one, described installing plate is fixed with a slide rail base plate by bracing frame, described slide rail base plate is provided with the first line slide rail, and described outer wall sealed holding assembly can be arranged on described slide rail base plate along what the first line slide rail slided.
In a preferred embodiment of the present invention, farther including described stationary gripping part and be provided with a location fixed block, described inner chamber block head is fixed on the fixed block of described location, and the QI KOU of described injecting hole and relief hole is arranged on the fixed block of location.
In a preferred embodiment of the present invention, farther include described installing plate and be provided with the second line slide rail, the bearing of trend of described second line slide rail and the bearing of trend of the first line slide rail are identical, and described slip clamping part can be arranged on described installing plate along what the second line slide rail moved.
In a preferred embodiment of the present invention, farther include described installing plate and be provided with a bracer, described bracer is provided with the second cylinder, and the piston rod of described second cylinder is fixed with oiliness identification pencil, and during described second process cylinder, oiliness identification pencil can contact the outer wall of described corrugated tube.
In a preferred embodiment of the present invention, farther include described stationary gripping part and there is semicircular first jaws, described slip clamping part has semicircular second jaws, the end of corrugated tube described in the first jaws and the second jaws sealed holding during described slip clamping part process.
For reaching above-mentioned purpose, another technical scheme of the present invention is as follows: a kind of detection bubble-tight method of equipment Inspection corrugated tube adopting any one of claim 1-8, it is characterised in that: comprise the following steps:
S1: tubulature, the mouth of pipe quantity of corresponding corrugated tube, choose multipair inner chamber block head and outer wall sealed holding assembly, inner chamber block head is inserted from the mouth of pipe of corrugated tube, will be equipped with the corrugated tube of inner chamber block head subsequently and be placed in the first jaws, clamped the side of corrugated tube end outer wall by the first jaws, each mouth of pipe of corrugated tube repeats above-mentioned action and completes the tubulature action of corrugated tube, the detection equipment of clean boot subsequently；
S2: ferrule clamps, control to start the first process cylinder, making the second jaws on slip clamping part clamp the opposite side of corrugated tube end outer wall, each mouth of pipe of corrugated tube repeats above-mentioned action and completes the sealed clamping action of the respective mouth of pipe, and whole corrugated tube inner chamber forms the space closed；
S3: inflation, first pass through pressure regulator valve to adjust the preset pressure value Pr of corrugated tube inner chamber air pressure, control to start intake valve subsequently to inflate to corrugated tube inner chamber, gas replenishment process is monitored the atmospheric pressure value of corrugated tube inner chamber by pressure-detecting device, judge whether real-time pressure value reaches preset pressure value when pressure stability after inflation a period of time, if real-time pressure value is be more than or equal to preset pressure value, starts pressurize and enter step S4；Otherwise prompting clamping mistake or product are defective；
S4: pressurize, the pressure keeping corrugated tube inner chamber is preset pressure value Pr, and the control dwell time is 5-50S, is gathered the force value of corrugated tube inner chamber in pressure maintaining period by pressure-detecting device, within each second, gathering a secondary data, the maximum pressure value collected in meter pressure maintaining period is Pmax, the minimum pressure values collected is Pmin, take △ P=Pmax-PminCompare with default leak pressure value P0, if △ is P < P0, then judge that corrugated tube air-leakage test is qualified, enter step S5；If △ is P >=P0, then and judge that corrugated tube air-leakage test is defective, skip step S5 and be directly entered step S6；The detection demand that leak pressure value P0 herein is according to client is predetermined in detection system.
S5: mark qualified products, controls to start the second process cylinder so that the outer wall of oiliness identification pencil contact corrugated tube, and the corrugated tube that air-leakage test is qualified is got ready mark；
S6: pressure release takes pipe, closes intake valve, is discharged the pressure of corrugated tube inner chamber by bleeder port, control to start the first cylinder subsequently and move back journey, taking out corrugated tube, the corrugated tube that air-leakage test is qualified is placed on non-defective unit district, and the underproof corrugated tube of air-leakage test is placed on defective products district.
In a preferred embodiment of the present invention, farther include first First air-leakage test tool and carry out step S1 and step S2, when entering step S3, step S4 and step 5 when First air-leakage test tool, second air-leakage test tool carries out step S1 and step S2；When second air-leakage test tool carries out step S3 and step S4, First air-leakage test tool is sequentially carried out step S6, step S1 and step S2；Circulate the bubble-tight detection of all corrugated tubes successively.
The invention has the beneficial effects as follows: 1, the corrugated tube air tightness detection equipment of the present invention, by inner chamber block head and outer wall sealed holding assembly, pipe end is sealed, make inner cavity of pipe be formed and close space, gas is injected to closing inner chamber by injecting hole, the pressure change being tested inner chamber by pressure-detecting device detects the air-tightness of corrugated tube, has novel structure, the feature that simple to operate, air-leakage test precision high, the concordance of corrugated tube batch detection is good；
2, two detection tools that a preferred supporting setting of detection equipment works alone, a station can carry out the detection of two corrugated tubes simultaneously, it is possible to reaches double detection efficiency；
3, consider to inject in gas process to inner cavity of pipe, corrugated tube can be shaken under air pressure impact force action, the present invention optimizes the outer wall sealed holding assembly generally movable part of design, can overcome, relative to being fixedly installed, the damage that in detection process, the shake of corrugated tube brings to corrugated tube.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in embodiment of the present invention technology, the accompanying drawing used required in the description of embodiment technology will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of first embodiment of the invention；
Fig. 2 is the structural representation of the air-leakage test tool of first embodiment of the invention；
Fig. 3 is the structural representation of second embodiment of the invention；
Fig. 4 is the structural representation of the air-leakage test tool of second embodiment of the invention；
Fig. 5 is the detection bubble-tight method flow diagram of equipment Inspection corrugated tube according to the present invention of third embodiment of the invention.
Wherein: 1-corrugated tube, 2-Electric Appliance Cabinet, 4-electric mounting board, 6-gas circuit installing plate, 8-workbench base plate, 10-1-First air-leakage test tool, second air-leakage test tool 12-inner chamber block head of 10-2-, 14-outer wall sealed holding assembly, 16-injecting hole, 18-air gauge, 20-pressure regulator valve, 22-stationary gripping part, 24-slip clamping part, 26-the first cylinder, 28-installing plate, 30-slide rail base plate, 32-positions fixed block, 34-the second line slide rail, 36-props up bracer, 38-the second cylinder, 40-oiliness identification pencil, 42-the first jaws, 44-the second jaws.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one
As shown in Figure 1, 2, a kind of corrugated tube air tightness detection equipment disclosed in the present embodiment, for detecting the air-tightness of two mouthfuls of corrugated tubes, including Electric Appliance Cabinet 2, appliance mounting panel 4 and gas circuit installing plate 6 it is provided with in Electric Appliance Cabinet 2, the cabinet top of Electric Appliance Cabinet 2 is provided with workbench base plate 8, workbench base plate 8 is provided with on the appliance mounting panel 4 and gas circuit installing plate 6 that electric control platform 3 detects all electric wirings of equipment and gas path pipe is separately mounted in Electric Appliance Cabinet 2 by a pillar, puts in order clean and tidy.Being provided with some air-leakage test tools 10 of work independence on described workbench base plate 8, in order to improve efficiency, in this enforcement, preferably a detection coordinative composition of equipments arranges two air-leakage test tools 10, it is possible to increase the detection efficiency of a times；Described air-leakage test tool 10 includes some inner chamber block heads 12 that work is coordinated and outer wall sealed holding assembly 14, the end of corrugated tube 1 described in sealing blocking that described inner chamber block head 12 and the work of outer wall sealed holding assembly 14 coordinate, the corrugated tube of detection two mouthfuls is coordinated in the present embodiment, there is two pairs of inner chamber block heads 12 and outer wall sealed holding assembly 14, two pairs of two mouths of pipe being respectively used to sealing blocking corrugated tube 1, one of them inner chamber block head 12 is provided with injecting hole 16, one end seals to stretch into and is provided with an air inlet pipe in injecting hole 16, described air inlet pipe is provided with intake valve and pressure regulator valve 20 (wherein, air inlet pipe is arranged on gas circuit installing plate 6, it is internal that intake valve is arranged on Electric Appliance Cabinet 2)；Another inner chamber block head 12 is provided with relief hole (not shown) and pressure-detecting device, the pressure-detecting device of the present invention preferably employs the piezometer with air gauge 18, piezometer is arranged on inner chamber block head, the pressure regulation button of air gauge 18 and pressure regulator valve 20 is installed on electric control platform 3, convenient operation.Two ends of corrugated tube 1 are sealed by the present embodiment by two pairs of inner chamber block heads 12 and outer wall sealed holding assembly 14, make corrugated tube 1 inner chamber be formed and close space, being injected gas by injecting hole 16 to closing inner chamber, the pressure being tested inner chamber by piezometer changes the air-tightness detecting corrugated tube.
Concrete, described outer wall sealed holding assembly 14 is respectively provided with stationary gripping part 22 and the slip clamping part 24 that split is arranged, and drives described slip clamping part 24 to slide process or journey is moved back in slip is provided with the first cylinder 26.Wherein, that can dismantle on described workbench base plate 8 is provided with two installing plates 28, two air-leakage test tools 10 are separately mounted on installing plate 28 described in two, the cylinder barrel of the first cylinder 26 is fixed on installing plate 28, slip clamping part 24 is fixed on the piston rod of the first cylinder 26, the present embodiment is according to actual installation needs, installing plate 28 is fixed with support section bar and fixing section bar by the mode that is detachably fixed of screw or bolt attaching nut, for stationary gripping part 22 and slip clamping part 24 are fixed on installing plate 28, the end of described corrugated tube 1 is blocked with described stationary gripping part 22 fitted seal during described slip clamping part 24 process.First cylinder 26 constitutes driving force and promotes slip clamping part 24 move and coordinate the end seal by corrugated tube 1 to grip with stationary gripping part 22, the present embodiment promotes as driver part preferably but not limited to cylinder and compresses slip clamping part 24, clamping is stable, cost is low, makes the manufacturing process of tool be easily achieved simultaneously；Certainly the mode that hydraulic cylinder, motor etc. drive can also be adopted to reach the effect that the present invention promotes and clamps equally.
Further, described stationary gripping part 22 has semicircular first jaws 42, described slip clamping part 24 has semicircular second jaws 44, the end of corrugated tube 1 described in first jaws 42 and the second jaws 44 sealed holding during described slip clamping part 24 process, coordinate the end of corrugated tube circular configuration, first jaws 42 and the second jaws 44 all adopt semicircular structure so that in being just engaged in the end of corrugated tube 1 when both are combined, be beneficial to the sealed clamping guaranteeing corrugated tube end.
As a further improvement on the present invention, described installing plate 28 is fixed with a slide rail base plate 30 by bracing frame, described slide rail base plate 30 is provided with the first line slide rail (not shown), and described outer wall sealed holding assembly 14 can be arranged on described slide rail base plate 30 along what the first line slide rail slided；Described stationary gripping part 22 is provided with a location fixed block 32, and described inner chamber block head 12 is fixed on described location fixed block 32, and the QI KOU of described injecting hole 16 and relief hole is arranged on the fixed block 32 of location.Time in the present embodiment for coordinating the air-tightness detecting two mouthfuls of corrugated tubes, it is preferably provided with a slide rail base plate 30, have what an outer wall sealed holding assembly 14 can slide to be arranged on slide rail base plate 30, and another outer wall sealed holding assembly 14 is integrally attached on installing plate, another inner chamber block head 12 is fixed in the stationary gripping part 22 of matched outer wall sealed holding assembly 14.Consider to inject in gas process to corrugated tube 1 inner chamber, corrugated tube 1 can be shaken under air pressure impact force action, the present invention optimizes the movable outer wall sealed holding assembly 14 of design, there is during work certain degree of allowing, can overcome, relative to being fixedly installed, the damage that in detection process, the shake of corrugated tube 1 brings to corrugated tube 1.By the first line slide rail arranged further, it constitutes the track of outer wall sealed holding component slippage, with this movement of outer wall sealed holding assembly of leading, it is to avoid its random movement.
As a further improvement on the present invention, described installing plate 28 is provided with the second line slide rail 34, the bearing of trend of described second line slide rail 34 and the bearing of trend of the first line slide rail are identical, and described slip clamping part 24 can be arranged on described installing plate 28 along what the second line slide rail 34 moved.Second line slide rail 34 is set and carrys out the sliding trace of limit slippage clamping part 24, guarantee that slip clamping part 24 clamps the alignment degree of corrugated tube 1 with this.
As a further improvement on the present invention, described installing plate 28 is provided with a bracer 36, described bracer 36 is provided with the second cylinder 38, and the piston rod of described second cylinder 38 is fixed with oiliness identification pencil 40, and during described second cylinder 38 process, oiliness identification pencil 40 can contact the outer wall of described corrugated tube 1.Oiliness identification pencil 40 gets mark ready for the outer wall at corrugated tube 1 when the air-leakage test of corrugated tube 1 is qualified.
Embodiment two
nullSuch as Fig. 3、Shown in 4，A kind of corrugated tube air tightness detection equipment disclosed in the present embodiment，For coordinating the air-tightness of three mouthfuls of corrugated tubes of detection，The detection equipment of embodiment two is compared to detection the differing only in of equipment of embodiment one: coordinate the corrugated tube of detection three mouthfuls，Installing plate 28 is provided with three inner chamber block heads 12 and three outer wall sealed holding assemblies 14，Three inner chamber block heads 12 are each attached in the stationary gripping part 8 of matched outer wall sealed holding assembly 14，Two of which outer wall sealed holding assembly 14 is fixedly installed on installing plate 28，Wherein the 3rd outer wall sealed holding assembly 14 entirety can be arranged on slide rail base plate 30 along what the first line slide rail moved，The slip clamping part 10 of two outer wall sealed holding assemblies 14 all can be arranged on installing plate 28 along what respective second line slide rail 34 moved，The slip clamping part 10 of one outer wall sealed holding assembly 14 can be arranged on slide rail base plate 30 along what the second corresponding line slide rail 34 moved.
Certainly, according to actually detected needs, the detection equipment of the present invention can change inner chamber block head 12 and the quantity of outer wall sealed holding assembly 14 according to the quantity of the corrugated tube mouth of pipe, enables to be applicable to corrugated tube (quantity of the mouth of pipe the is different) air-leakage test of plurality of specifications.
Embodiment three
Adopt above-mentioned detection equipment to detect the bubble-tight detection method of corrugated tube as it is shown in figure 5, a kind of disclosed in the present embodiment, comprise the following steps:
S1: tubulature, the mouth of pipe quantity of corresponding corrugated tube 1, choose multipair inner chamber block head 12 and outer wall sealed holding assembly 14, inner chamber block head 12 is inserted from the mouth of pipe of corrugated tube 1, will be equipped with the corrugated tube 1 of inner chamber block head 12 subsequently and be placed in the first jaws 42, clamped the side of corrugated tube 1 end outer wall by the first jaws 42, each mouth of pipe of corrugated tube 1 repeats above-mentioned action and completes the tubulature action of corrugated tube 1, the detection equipment of clean boot subsequently；
S2: ferrule clamps, control first cylinder 26 process that starts, the second jaws 44 on slip clamping part 24 is made to clamp the opposite side of corrugated tube 1 end outer wall, each mouth of pipe of corrugated tube 1 repeats above-mentioned action and completes the sealed clamping action of the respective mouth of pipe, and whole corrugated tube inner chamber forms the space closed；
S3: inflation, first pass through pressure regulator valve 20 to adjust the preset pressure value Pr of corrugated tube 1 inner chamber air pressure, control to start intake valve subsequently to inflate to corrugated tube 1 inner chamber, gas replenishment process is gathered the atmospheric pressure value of corrugated tube inner chamber by pressure-detecting device monitoring, force value can be seen intuitively from air gauge 18, judge whether real-time pressure value reaches preset pressure value when pressure stability after inflation a period of time, if real-time pressure value is be more than or equal to preset pressure value, starts pressurize and enter step S4；Otherwise prompting clamping mistake or product are defective；
S4: pressurize, the pressure keeping corrugated tube 1 inner chamber is preset pressure value Pr, and the control dwell time is 5-50S, is gathered the force value of corrugated tube inner chamber in pressure maintaining period by pressure-detecting device, within each second, gathering a secondary data, the maximum pressure value collected in meter pressure maintaining period is Pmax(force value that in actual acquisition process, first time collects is maximum pressure value), the minimum pressure values collected is Pmin, take △ P=Pmax-Pmin, △ P and default leak pressure value P0 is compared, if △ is P < P0, then judges that corrugated tube air-leakage test is qualified, enter step S5；If △ is P >=P0, then and judge that corrugated tube air-leakage test is defective, skip step S5 and be directly entered step S6；
S5: mark qualified products, controls second cylinder 38 process that starts so that oiliness identification pencil 40 contacts the outer wall of corrugated tube 1, and the corrugated tube that air-leakage test is qualified is got ready mark；
S6: pressure release takes pipe, closes intake valve, is discharged the pressure of corrugated tube inner chamber by bleeder port, control to start the first cylinder 26 subsequently and move back journey, taking out corrugated tube 1, the corrugated tube 1 that air-leakage test is qualified is placed on non-defective unit district, and the underproof corrugated tube 1 of air-leakage test is placed on defective products district.
During practical operation, first First air-leakage test tool carries out step S1 and step S2, and when entering step S3, step S4 and step 5 when First air-leakage test tool, second air-leakage test tool carries out step S1 and step S2；When second air-leakage test tool carries out step S3 and step S4, First air-leakage test tool is sequentially carried out step S6, step S1 and step S2；Circulate the bubble-tight detection of all corrugated tubes successively；Do action completes the bubble-tight detection of all corrugated tubes successively.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a corrugated tube air tightness detection equipment, including Electric Appliance Cabinet, the cabinet top of described Electric Appliance Cabinet is provided with workbench base plate, it is characterized in that: described workbench base plate is provided with some air-leakage test tools of work independence, described air-leakage test tool includes some inner chamber block heads that work is coordinated and outer wall sealed holding assembly, the end of corrugated tube described in sealing blocking that described inner chamber block head and outer wall sealed holding component operation coordinate, the described inner chamber block head of part is provided with injecting hole and the relief hole that work replaces, the described inner chamber block head of part is provided with pressure-detecting device, one end seals to stretch into and is provided with an air inlet pipe in injecting hole, described air inlet pipe is provided with intake valve and pressure regulator valve.
2. corrugated tube air tightness detection equipment according to claim 1, it is characterised in that: described workbench base plate is provided with two air-leakage test tools of work independence.
3. corrugated tube air tightness detection equipment according to claim 2, it is characterized in that: described outer wall sealed holding assembly is respectively provided with stationary gripping part and the slip clamping part that split is arranged, drive described slip clamping part slip process or slip to move back first cylinder that is provided with of journey, during described slip clamping part process, block the end of described corrugated tube with described stationary gripping part fitted seal.
4. corrugated tube air tightness detection equipment according to claim 3, it is characterized in that: that can dismantle on described workbench base plate is provided with two installing plates, air-leakage test tool described in two is fixed on respective installing plate one to one, described installing plate is fixed with a slide rail base plate by bracing frame, described slide rail base plate is provided with the first line slide rail, and described outer wall sealed holding assembly can be arranged on described slide rail base plate along what the first line slide rail slided.
5. corrugated tube air tightness detection equipment according to claim 3, it is characterized in that: described stationary gripping part is provided with a location fixed block, described inner chamber block head is fixed on the fixed block of described location, and the QI KOU of described injecting hole and relief hole is arranged on the fixed block of location.
6. corrugated tube air tightness detection equipment according to claim 4, it is characterized in that: described installing plate is provided with the second line slide rail, the bearing of trend of described second line slide rail and the bearing of trend of the first line slide rail are identical, and described slip clamping part can be arranged on described installing plate along what the second line slide rail moved.
7. corrugated tube air tightness detection equipment according to claim 4, it is characterized in that: described installing plate is provided with a bracer, described bracer is provided with the second cylinder, being fixed with oiliness identification pencil on the piston rod of described second cylinder, during described second process cylinder, oiliness identification pencil can contact the outer wall of described corrugated tube.
8. corrugated tube air tightness detection equipment according to claim 3, it is characterized in that: described stationary gripping part has semicircular first jaws, described slip clamping part has semicircular second jaws, the end of corrugated tube described in the first jaws and the second jaws sealed holding during described slip clamping part process.
9. the detection bubble-tight method of equipment Inspection corrugated tube adopting any one of claim 1-8, it is characterised in that: comprise the following steps:
S1: tubulature, the mouth of pipe quantity of corresponding corrugated tube, choose multipair inner chamber block head and outer wall sealed holding assembly, inner chamber block head is inserted from the mouth of pipe of corrugated tube, will be equipped with the corrugated tube of inner chamber block head subsequently and be placed in the first jaws, clamped the side of corrugated tube end outer wall by the first jaws, each mouth of pipe of corrugated tube repeats above-mentioned action and completes the tubulature action of corrugated tube, the detection equipment of clean boot subsequently；
S2: ferrule clamps, control to start the first process cylinder, making the second jaws on slip clamping part clamp the opposite side of corrugated tube end outer wall, each mouth of pipe of corrugated tube repeats above-mentioned action and completes the sealed clamping action of the respective mouth of pipe, and whole corrugated tube inner chamber forms the space closed；
S3: inflation, first pass through pressure regulator valve to adjust the preset pressure value Pr of corrugated tube inner chamber air pressure, control to start intake valve subsequently to inflate to corrugated tube inner chamber, gas replenishment process is monitored the atmospheric pressure value of corrugated tube inner chamber by pressure-detecting device, judge whether real-time pressure value reaches preset pressure value when pressure stability after inflation a period of time, if real-time pressure value is be more than or equal to preset pressure value, starts pressurize and enter step S4；Otherwise prompting clamping mistake or product are defective；
S4: pressurize, the pressure keeping corrugated tube inner chamber is preset pressure value Pr, and the control dwell time is 5-50S, is gathered the force value of corrugated tube inner chamber in pressure maintaining period by pressure-detecting device, within each second, gathering a secondary data, the maximum pressure value collected in meter pressure maintaining period is Pmax, the minimum pressure values collected is Pmin, take △ P=Pmax-PminCompare with default leak pressure value P0, if △ is P < P0, then judge that corrugated tube air-leakage test is qualified, enter step S5；If △ is P >=P0, then and judge that corrugated tube air-leakage test is defective, skip step S5 and be directly entered step S6；
S5: mark qualified products, controls to start the second process cylinder so that the outer wall of oiliness identification pencil contact corrugated tube, and the corrugated tube that air-leakage test is qualified is got ready mark；
S6: pressure release takes pipe, closes intake valve, is discharged the pressure of corrugated tube inner chamber by bleeder port, control to start the first cylinder subsequently and move back journey, taking out corrugated tube, the corrugated tube that air-leakage test is qualified is placed on non-defective unit district, and the underproof corrugated tube of air-leakage test is placed on defective products district.
10. the method for corrugated tube air-leakage test according to claim 9, it is characterized in that: first First air-leakage test tool carries out step S1 and step S2, when entering step S3, step S4 and step 5 when First air-leakage test tool, second air-leakage test tool carries out step S1 and step S2；When second air-leakage test tool carries out step S3 and step S4, First air-leakage test tool is sequentially carried out step S6, step S1 and step S2；Circulate the bubble-tight detection of all corrugated tubes successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205803.XA CN105738051B (en) | 2016-04-05 | 2016-04-05 | Bellows air tightness detection equipment and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610205803.XA CN105738051B (en) | 2016-04-05 | 2016-04-05 | Bellows air tightness detection equipment and its detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105738051A true CN105738051A (en) | 2016-07-06 |
| CN105738051B CN105738051B (en) | 2019-09-20 |
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|---|---|---|---|---|
| CN106482914A (en) * | 2016-09-27 | 2017-03-08 | 天津市神驰汽车零部件有限公司 | A kind of pair acoustic filter airtightness test table |
| CN107806971A (en) * | 2017-11-29 | 2018-03-16 | 重庆赛格尔汽车配件有限公司 | A kind of air tightness detection system |
| CN107843397A (en) * | 2017-11-15 | 2018-03-27 | 安徽玄同工业设计有限公司 | Oil piping system pipe joint tightness test device |
| CN107884139A (en) * | 2017-10-31 | 2018-04-06 | 无锡市永兴金属软管有限公司 | A kind of failure test device of bellows |
| CN107894308A (en) * | 2017-10-31 | 2018-04-10 | 无锡市永兴金属软管有限公司 | A kind of failure test method of bellows |
| CN108106793A (en) * | 2017-12-07 | 2018-06-01 | 嵊州领航信息科技有限公司 | A kind of pressure-detecting device of pipe end |
| CN109060266A (en) * | 2018-06-28 | 2018-12-21 | 芜湖泰和管业股份有限公司 | Gas bellows air-tightness detection device and its detection method with protection |
| CN109781361A (en) * | 2018-12-27 | 2019-05-21 | 瑞源橡塑制品有限公司 | A kind of rubber hose air-tightness detection device |
| CN109967384A (en) * | 2019-03-29 | 2019-07-05 | 宁波英特灵气动科技有限公司 | A kind of tightness checking device of throttle valve production line for automatically assembling |
| CN112414642A (en) * | 2019-08-21 | 2021-02-26 | 青岛海尔洗衣机有限公司 | Method for detecting sealing performance of water containing barrel of clothes treatment equipment |
| CN113624418A (en) * | 2021-07-19 | 2021-11-09 | 合肥市金佰嘉精密科技有限公司 | Quick detection device of injection molding gas tightness |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482914A (en) * | 2016-09-27 | 2017-03-08 | 天津市神驰汽车零部件有限公司 | A kind of pair acoustic filter airtightness test table |
| CN107884139A (en) * | 2017-10-31 | 2018-04-06 | 无锡市永兴金属软管有限公司 | A kind of failure test device of bellows |
| CN107894308A (en) * | 2017-10-31 | 2018-04-10 | 无锡市永兴金属软管有限公司 | A kind of failure test method of bellows |
| CN107843397A (en) * | 2017-11-15 | 2018-03-27 | 安徽玄同工业设计有限公司 | Oil piping system pipe joint tightness test device |
| CN107843397B (en) * | 2017-11-15 | 2021-07-30 | 安徽玄同机电科技有限公司 | Oil circuit system pipe joint air tightness test device |
| CN107806971A (en) * | 2017-11-29 | 2018-03-16 | 重庆赛格尔汽车配件有限公司 | A kind of air tightness detection system |
| CN108106793A (en) * | 2017-12-07 | 2018-06-01 | 嵊州领航信息科技有限公司 | A kind of pressure-detecting device of pipe end |
| CN109060266A (en) * | 2018-06-28 | 2018-12-21 | 芜湖泰和管业股份有限公司 | Gas bellows air-tightness detection device and its detection method with protection |
| CN109781361A (en) * | 2018-12-27 | 2019-05-21 | 瑞源橡塑制品有限公司 | A kind of rubber hose air-tightness detection device |
| CN109967384A (en) * | 2019-03-29 | 2019-07-05 | 宁波英特灵气动科技有限公司 | A kind of tightness checking device of throttle valve production line for automatically assembling |
| CN112414642A (en) * | 2019-08-21 | 2021-02-26 | 青岛海尔洗衣机有限公司 | Method for detecting sealing performance of water containing barrel of clothes treatment equipment |
| CN113624418A (en) * | 2021-07-19 | 2021-11-09 | 合肥市金佰嘉精密科技有限公司 | Quick detection device of injection molding gas tightness |
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