CN104422563A - Life testing device - Google Patents
Life testing device Download PDFInfo
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- CN104422563A CN104422563A CN201310410655.1A CN201310410655A CN104422563A CN 104422563 A CN104422563 A CN 104422563A CN 201310410655 A CN201310410655 A CN 201310410655A CN 104422563 A CN104422563 A CN 104422563A
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- gas
- test apparatus
- life test
- gas circuit
- solenoid valve
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The embodiment of the invention discloses a life testing device which comprises an airtight pressure-generating system and a detector, wherein the airtight pressure-generating system comprises a gas-liquid pressurizer, a hydraulic pipe communicated with a liquid outlet of the gas-liquid pressurizer, and an electromagnetic valve arranged on the gas path, wherein a gas inlet of the pressurizer is connected with a gas path. When the electromagnetic valve is in a first working position, the gas path is communicated with the gas inlet, and when the electromagnetic valve is in a second working position, the gas path is not communicated with the gas inlet. An adapter used for installing a to-be-tested workpiece is arranged on the detector. Because the gas-liquid pressurizer is adopted in the life testing device, a gas source is separated from the tested workpiece, so that potential safety hazards caused when nitrogen is used in a manual life test are eliminated.
Description
Technical field
The present invention relates to a kind of experimental provision, more particularly, relate to a kind of life test apparatus.
Background technology
Pressure transducer can be experienced pressure and convert the sensor of usable output signal to.Pressure switch adopts pressure transducer and the transmission circuit of high precision, high stable performance, then through dedicated cpu modular signal treatment technology, realizes the detection to pressure medium signal, display, warning and control signal and export.
In order to ensure the normal use of pressure transducer and pressure switch, pressure transducer and pressure switch needed to extract portioned product as examined workpiece and carry out durability test before dispatching from the factory.At present, to explicitly calling for the examined workpiece that must do this test, nitrogen can only be used to carry out durability test by assigned frequency Controlling solenoid valve to examined workpiece.Adopt which not only at substantial nitrogen, and there is serious potential safety hazard.
In addition, pressure transducer requires that test number (TN) is 2,000,000 times, pressure switch requires 50,000 times, once can only test a pressure transducer or pressure switch when adopting aforesaid way to carry out life test, require a great deal of time to do this experiment, and cannot carry out continuously, efficiency is very low, in actual production, test usually cannot complete.
Therefore, how to reduce the potential safety hazard in examined workpiece durability test process, become the technical matters that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of life test apparatus, to realize the object of the potential safety hazard reduced in examined workpiece durability test process.
For achieving the above object, the invention provides following technical scheme:
A kind of life test apparatus, this device comprises airtightly makes pressing system and detecting device, and wherein, described airtight pressing system of making comprises: the gas-liquid booster that air intake opening is connected with gas circuit; The hydraulic tube be communicated with the liquid outlet of described gas-liquid booster; With the solenoid valve being arranged on described gas circuit, when described solenoid valve is in the first working position, described gas circuit is communicated with described air intake opening, when described solenoid valve is in the second working position, described gas circuit and described air intake opening non-conduction; Described detecting device is provided with the X-over for installing examined workpiece.
Preferably, in above-mentioned life test apparatus, described gas circuit is also provided with rain glass.
Preferably, in above-mentioned life test apparatus, described gas circuit is also provided with the minute adjustment valve for regulating gaseous tension size in described gas circuit.
Preferably, in above-mentioned life test apparatus, described hydraulic tube is also provided with hydralic pressure gauge.
Preferably, in above-mentioned life test apparatus, the X-over on described detecting device has multiple, and described detecting device is also provided with protective cover.
Preferably, in above-mentioned life test apparatus, describedly airtightly make pressing system and detecting device at least 4 group.
Preferably, in above-mentioned life test apparatus, described at least 4 groups airtight make gas circuit in pressing system and detecting device all or part of share a source of the gas.
Preferably, in above-mentioned life test apparatus, described source of the gas is gas-holder.
Preferably, in above-mentioned life test apparatus, also comprise control system, described control system comprises:
Interactive unit, for receiving the operational order of user, comprises circulation pattern and test number (TN);
Receiving element, for receiving the feedback signal of examined workpiece;
Control module, for obtaining executive signal according to described operational order and described feedback signal; With
Transmitting element, for described executive signal is sent to described solenoid valve, when described executive signal is start signal, described solenoid valve is in the first working position, and when described executive signal is shutdown signal, described solenoid valve is in the second working position.
Preferably, in above-mentioned life test apparatus, described device also comprises frame and touch-screen, and described airtight pressing system, described control system and the described touch-screen made is arranged in described frame, and described touch-screen is used for entering the operating instructions to described interactive unit.
As can be seen from technique scheme, the life test apparatus in the embodiment of the present invention comprises airtightly makes pressing system and detecting device, and wherein, described airtight pressing system of making comprises: the gas-liquid booster that air intake opening is connected with gas circuit; The hydraulic tube be communicated with the liquid outlet of described gas-liquid booster; With the solenoid valve being arranged on described gas circuit, when described solenoid valve is in the first working position, described gas circuit is communicated with described air intake opening, when described solenoid valve is in the second working position, described gas circuit and described air intake opening non-conduction; Described detecting device is provided with the X-over for installing examined workpiece.
When needs carry out durability test to examined workpiece, examined workpiece is installed on X-over on the detector, gas circuit is connected source of the gas, opens solenoid valve, make solenoid valve be in the first working position, described gas circuit is communicated with described air intake opening, pressurized air enters the air cavity of gas-liquid booster, promotes its piston rod and runs forward, and the pressure in the closed loop that whole hydraulic tube and detecting device are formed increases, when pressure reaches the opening pressure needed for examined workpiece, examined workpiece is opened.Then switching solenoid valve makes described solenoid valve be in the second working position, described gas circuit and described air intake opening non-conduction, gas-liquid booster piston rod returns reset, in whole hydraulic pressure closed system pressure reduce, get back to original pressure.Thus examined workpiece is closed, complete the action once opened and closed.Owing to adopting gas-liquid booster in this device, source of the gas and test examined workpiece are kept apart, eliminates the potential safety hazard that artificial nitrogen does durability test.
In addition, by arranging the life test that multiple X-over can once realize multiple examined workpiece on detecting device, thus improve the efficiency of test.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art 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 prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The explosive view of a kind of life test apparatus that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the frontal perspective structural representation of the life test apparatus comprising 4 cover Fig. 1 shown devices;
The rear perspective structural representation of the another kind of life test apparatus that Fig. 3 provides for the embodiment of the present invention;
The main TV structure schematic diagram of the another kind of life test apparatus that Fig. 4 provides for the embodiment of the present invention;
The plan structure schematic diagram of the another kind of life test apparatus that Fig. 5 provides for the embodiment of the present invention;
The structured flowchart of the control system that Fig. 6 provides for the embodiment of the present invention.
Wherein, in Fig. 1 to Fig. 6:
101 is gas-liquid booster; 102 is hydraulic tube; 103 is gas-holder; 104 is precise pressure regulating valve; 105 is rain glass; 106 is hydralic pressure gauge; 200 is detecting device; 201 is X-over; 202 is protective cover; 300 is frame; 301 is adjusting screw(rod); 302 is control panel; 303 is power distribution cabinet; 304 is button; 305 is touch-screen; 400 is examined workpiece; 500 is control system; 501 is interactive unit; 502 is receiving element; 503 is control module; 504 is transmitting element.
Embodiment
Below, with reference to accompanying drawing, embodiment is described.In addition, the embodiment shown in below does not play any restriction effect to the summary of the invention described in claim.In addition, the solution that the full content of the formation below represented by embodiment is not limited to as the invention described in claim is necessary.
For this reason, the present invention discloses a kind of life test apparatus, to realize the object of the potential safety hazard reduced in examined workpiece 400 durability test process.
As shown in Figures 1 to 5, this life test apparatus comprises airtightly makes pressing system and detecting device 200, and wherein, airtight pressing system of making comprises: the gas-liquid booster 101 that air intake opening is connected with gas circuit; The hydraulic tube 102 be communicated with the liquid outlet of gas-liquid booster 101; With the solenoid valve being arranged on gas circuit, when solenoid valve is in the first working position, gas circuit is communicated with air intake opening, when solenoid valve is in the second working position, gas circuit and air intake opening non-conduction; Detecting device 200 is provided with the X-over 201 for installing examined workpiece 400.
When needs carry out durability test to examined workpiece 400, examined workpiece 400 is arranged on the X-over 201 on detecting device 200, gas circuit is connected source of the gas, opens solenoid valve, solenoid valve is made to be in the first working position, gas circuit is communicated with air intake opening, pressurized air enters the air cavity of gas-liquid booster 101, promote its piston rod to run forward, pressure in the closed loop that whole hydraulic tube 102 and detecting device 200 are formed increases, when pressure reaches the opening pressure needed for examined workpiece 400, examined workpiece 400 is opened.Then switching solenoid valve makes solenoid valve be in the second working position, gas circuit and air intake opening non-conduction, gas-liquid booster 101 piston rod returns reset, in whole hydraulic pressure closed system pressure reduce, get back to original pressure.Thus examined workpiece 400 is closed, complete the action once opened and closed.Owing to adopting gas-liquid booster 101 in this device, source of the gas and test examined workpiece 400 are kept apart, eliminates the potential safety hazard that artificial nitrogen does durability test.
The principle of work of gas-liquid booster 101 is that air pressure is converted into hydraulic pressure by certain pressure ratio, and pressure ratio pressure needed for measured workpiece is determined; By the size of accurate voltage regulating valve regulation compressed air pressure, thus reach and regulate the airtight size making medium pressure liquid in pressing system, convenient and precision is high.
Conveniently observe gaseous tension in gas circuit, in above-mentioned life test apparatus, gas circuit is also provided with rain glass 105.
Because the pressure in gas circuit is comparatively large, in order to ensure equipment traveling comfort, in above-mentioned life test apparatus, gas circuit is also provided with the minute adjustment valve 104 for regulating gaseous tension size in gas circuit.
Above-mentioned said gas circuit is for providing the pipeline of stabilizing gas for gas-liquid booster 101, and this gas circuit can ensure the work well of gas-liquid booster 101 by external gas source, but also self arranges source of the gas now, and described source of the gas is gas-holder 103.
Conveniently observe the hydraulic pressure on hydraulic tube 102, this hydraulic tube 102 is also provided with hydralic pressure gauge 106.
In order to ensure operating personnel further safety detector 200 on be also provided with protective cover 202, transparent structure can be designed to for the ease of observing this protective cover 202.In addition, in order to increase testing efficiency, the X-over 201 on detecting device 200 has multiple.
Airtightly make pressing system and detecting device 200 can be tested one group of examined workpiece 400 for one group, wherein when detecting device 200 possesses multiple X-over 201, just can complete the detection to multiple examined workpiece 400 smoothly.In order to further improve detection efficiency, airtightly in this life test apparatus make pressing system and detecting device 200 at least 4 group, at least 4 groups can work simultaneously, can realize testing more examined workpiece 400, thus substantially increase testing efficiency.
The airtight gas circuit made in pressing system and detecting device 200 of at least 4 groups all or part ofly can share a source of the gas.Two groups of airtight gas circuits made in pressing system and detecting device 200 share a source of the gas in embodiments of the present invention, and this source of the gas is specially gas-holder 103.
The life test apparatus of said structure can be manual operation or automatic operation, and when for automatic operation, this life test apparatus also comprises control system 500, and this control system 500 comprises:
Interactive unit 501, for receiving the operational order of user, comprises circulation pattern and test number (TN);
Receiving element 502, for receiving the feedback signal of examined workpiece 400;
Control module 503, for obtaining executive signal according to operational order and feedback signal; With
Transmitting element 504, for executive signal is sent to solenoid valve, when executive signal is start signal, solenoid valve is in the first working position, and when executive signal is shutdown signal, solenoid valve is in the second working position.
When needs carry out durability test to examined workpiece 400, examined workpiece 400 is arranged on the X-over 201 on detecting device 200, gas circuit is connected source of the gas, operational order is input in control system 500 by keyboard or touch-screen by operating personnel, as shown in Figure 6, interactive unit 501 receives the operational order that user sends out, and receiving element 502 receives the closedown feedback signal of examined workpiece 400, control module 503 is according to operational order and obtain after closing feedback signal performing start signal, and execution start signal is sent to solenoid valve by transmitting element 504.Opens solenoid valve, solenoid valve is made to be in the first working position, gas circuit is communicated with air intake opening, pressurized air enters the air cavity of gas-liquid booster 101, promote its piston rod to run forward, pressure in the closed loop that whole hydraulic tube 102 and detecting device 200 are formed increases, and when pressure reaches the opening pressure needed for examined workpiece 400, examined workpiece 400 is opened.Receiving element 502 receives unlatching feedback signal, control module 503 is according to the operational order of this unlatching feedback signal and storage, execution shutdown signal is sent to solenoid valve by transmitting element 504, solenoid valve receives action officer and forces signal rear electromagnetic valve to be in the second working position, gas circuit and air intake opening non-conduction, gas-liquid booster 101 piston rod returns reset, and in whole hydraulic pressure closed system, pressure reduces, and gets back to original pressure.Thus examined workpiece 400 is closed, complete the action once opened and closed.Then circulation aforesaid operations is required, until reach the test number (TN) of setting according to operational order.
Often organize that airtight to make pressing system completely independent, parameter is completely independent adjustment also.Set circulating working mode and the test number (TN) of every group system by touch-screen, equipment completes the rear auto stop of test automatically by setup parameter.
Above-mentioned life test apparatus also comprises frame 300 and touch-screen 305, and airtight pressing system, control system 500 and the touch-screen 305 made is arranged in frame 300, and touch-screen 305 is for entering the operating instructions to interactive unit 501.
The bottom of frame 300 is provided with adjusting screw(rod) 301, facilitate in whole equipment put procedure and adjust, frame 300 is provided with control panel 302, touch-screen 305, button 304, rain glass 105, hydralic pressure gauge 106, minute adjustment valve 104 are all arranged on this control panel 302, the unified operation of handled easily personnel.
Frame 300 is also arranged the power distribution cabinet 303 that promising each consumer is powered.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a life test apparatus, is characterized in that, this device comprises airtightly makes pressing system and detecting device, and wherein, described airtight pressing system of making comprises: the gas-liquid booster that air intake opening is connected with gas circuit; The hydraulic tube be communicated with the liquid outlet of described gas-liquid booster; With the solenoid valve being arranged on described gas circuit, when described solenoid valve is in the first working position, described gas circuit is communicated with described air intake opening, when described solenoid valve is in the second working position, described gas circuit and described air intake opening non-conduction; Described detecting device is provided with the X-over for installing examined workpiece.
2. life test apparatus as claimed in claim 1, is characterized in that, described gas circuit is also provided with rain glass.
3. life test apparatus as claimed in claim 2, it is characterized in that, described gas circuit is also provided with the minute adjustment valve for regulating gaseous tension size in described gas circuit.
4. life test apparatus as claimed in claim 3, is characterized in that, described hydraulic tube is also provided with hydralic pressure gauge.
5. life test apparatus as claimed in claim 4, it is characterized in that, the X-over on described detecting device has multiple, and described detecting device is also provided with protective cover.
6. life test apparatus as claimed in claim 5, is characterized in that, describedly airtightly makes pressing system and detecting device at least 4 group.
7. life test apparatus as claimed in claim 6, is characterized in that, airtightly described at least 4 groups makes that gas circuit in pressing system and detecting device is all or part of shares a source of the gas.
8. life test apparatus as claimed in claim 7, it is characterized in that, described source of the gas is gas-holder.
9. life test apparatus as claimed in claim 8, it is characterized in that, also comprise control system, described control system comprises:
Interactive unit, for receiving the operational order of user, comprises circulation pattern and test number (TN);
Receiving element, for receiving the feedback signal of examined workpiece;
Control module, for obtaining executive signal according to described operational order and described feedback signal; With
Transmitting element, for described executive signal is sent to described solenoid valve, when described executive signal is start signal, described solenoid valve is in the first working position, and when described executive signal is shutdown signal, described solenoid valve is in the second working position.
10. life test apparatus as claimed in claim 9, it is characterized in that, described device also comprises frame and touch-screen, and described airtight pressing system, described control system and the described touch-screen made is arranged in described frame, and described touch-screen is used for entering the operating instructions to described interactive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310410655.1A CN104422563A (en) | 2013-09-10 | 2013-09-10 | Life testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310410655.1A CN104422563A (en) | 2013-09-10 | 2013-09-10 | Life testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104422563A true CN104422563A (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310410655.1A Pending CN104422563A (en) | 2013-09-10 | 2013-09-10 | Life testing device |
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| Country | Link |
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| CN (1) | CN104422563A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151962A (en) * | 2017-12-15 | 2018-06-12 | 芜湖致通汽车电子有限公司 | A kind of method and its testing machine of positive-pressure type simulation vacuum test |
| CN113776729A (en) * | 2021-09-09 | 2021-12-10 | 江西万年芯微电子有限公司 | Pressure sensor reliability test system |
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| CN86106973A (en) * | 1986-10-22 | 1987-04-22 | 吉林省梨树县计量仪器研究所 | Electrically controlled standard piston-type pressure vacuum gauge |
| JP2002257666A (en) * | 2001-03-01 | 2002-09-11 | Sunx Ltd | Device for correcting pressure detector with respect to atmospheric pressure |
| CN201867281U (en) * | 2010-12-01 | 2011-06-15 | 重庆斯凯力科技有限公司 | Endurance test device for machine oil pressure sensor |
| CN201974340U (en) * | 2011-02-18 | 2011-09-14 | 浙江西普力密封科技有限公司 | Testing machine for fatigue life of multifunction hydraulic seal element |
| CN102818709A (en) * | 2012-07-25 | 2012-12-12 | 杭州沃镭科技有限公司 | Testing device of comprehensive performance of automotive clutch booster |
| CN203432745U (en) * | 2013-09-10 | 2014-02-12 | 珠海格力电器股份有限公司 | Life test device |
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2013
- 2013-09-10 CN CN201310410655.1A patent/CN104422563A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106973A (en) * | 1986-10-22 | 1987-04-22 | 吉林省梨树县计量仪器研究所 | Electrically controlled standard piston-type pressure vacuum gauge |
| JP2002257666A (en) * | 2001-03-01 | 2002-09-11 | Sunx Ltd | Device for correcting pressure detector with respect to atmospheric pressure |
| CN201867281U (en) * | 2010-12-01 | 2011-06-15 | 重庆斯凯力科技有限公司 | Endurance test device for machine oil pressure sensor |
| CN201974340U (en) * | 2011-02-18 | 2011-09-14 | 浙江西普力密封科技有限公司 | Testing machine for fatigue life of multifunction hydraulic seal element |
| CN102818709A (en) * | 2012-07-25 | 2012-12-12 | 杭州沃镭科技有限公司 | Testing device of comprehensive performance of automotive clutch booster |
| CN203432745U (en) * | 2013-09-10 | 2014-02-12 | 珠海格力电器股份有限公司 | Life test device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151962A (en) * | 2017-12-15 | 2018-06-12 | 芜湖致通汽车电子有限公司 | A kind of method and its testing machine of positive-pressure type simulation vacuum test |
| CN113776729A (en) * | 2021-09-09 | 2021-12-10 | 江西万年芯微电子有限公司 | Pressure sensor reliability test system |
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Application publication date: 20150318 |
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