CN105067203A - Valve body automatic detection device and method - Google Patents
Valve body automatic detection device and method Download PDFInfo
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- CN105067203A CN105067203A CN201510472760.7A CN201510472760A CN105067203A CN 105067203 A CN105067203 A CN 105067203A CN 201510472760 A CN201510472760 A CN 201510472760A CN 105067203 A CN105067203 A CN 105067203A
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Abstract
The invention discloses a valve body automatic detection device, which comprises a mechanical operation system and an electrical control system, wherein the mechanical operation system is used for achieving blockage and air inflation of a water inlet port and a water outlet port of a valve body, and the electrical control system controls the mechanical operation system to operate during the test process. The invention further discloses a valve body automatic detection method, which comprises the steps of compiling a programmable controller according to process steps, actions and time of drain valve detection, outputting a command via the programmable controller to control a corresponding relay, and driving an electromagnetic valve to make a pneumatic device complete required actions according to a program, thereby achieving the automatic detection purpose. The valve body automatic detection device and the valve body automatic detection method adopts the program for controlling a first pneumatic mechanism and a second pneumatic mechanism to complete actions of steps automatically, automatically control the air inflation time and pressure maintaining time, and automatically detect air pressure variation, so as to judge whether the valve body is qualified or not, thereby completing the transformation from manpower to machine and from manual to automatic; in addition, the valve body automatic detection device changes the traditional water immersion detection method for many years, and completes the transformation from ''wet'' to ''dry''.
Description
Technical field
The present invention relates to a kind of valve body automatic detection device, particularly relate to a kind of draining valve automatic detection device and detection method thereof of non-soaking type detection.
Background technology
Draining valve is vitals in automatic washing machine, along with improving constantly of people's living standard, the demand of high-grade household electrical appliance is being improved day by day, the market demand of automatic washing machine is also in quick growth, but this important step of the factory testing of draining valve has become the bottleneck of restriction output increased.
At present, the detection of industry internal drainage valve still adopts original bowssening manual inspection, that is: manually respectively the water inlet of draining valve and water delivering orifice are blocked, then respectively to the pressurized air being filled with authorised pressure in draining valve influent side valve pocket and water outlet side valve pocket, be immersed in the water whole for inflation valve body again, and in water, keep the several seconds, depending on its whether bubbling, thus judge whether qualified.Facts have proved, there is following defect in above-mentioned detection mode:
1, owing to being immersion inspection, workplace must possess several tank, and it is all water that workpiece is taken into dripping on the ground when taking out, and causes workplace moist.
2, operator's labour intensity is large.During operation, a few individual carries out filling in block up son, inflation round water-butt, and one holds valve, one holds tracheae, then valve is immersed in the water, in water, keep certain hour, then draining valve is taken out, shed plug and tracheae, a series of loaded down with trivial details process such as valve body to be dried, and in the winter of cold, both hands are directly immersed in icy water, are difficult to be subject to.
3, the consistance of the examination and test of products is poor.Assay is easily affected by human factors, and the time that workpiece is soaked in water is difficult to ensure, in especially winter, in the time kept, can not ensure that the sight line of operator does not leave workpiece in water, so, easily cause the undetected of product and flase drop.
4, inefficiency.As aforementioned hand test must complete multiple step, a people once can only examine a valve, causes inefficiency, and poor effect.
Given this, how to provide that a kind of detection efficiency is high, consistance good, improve the automatic detection device of labor strength simultaneously, become the technical matters that this area is urgently to be resolved hurrily.
Summary of the invention
In order to overcome the problems referred to above, the invention provides a kind of valve body automatic detection device, be intended to reform the mode that existing immersion detects, solve that existing detection mode labour intensity is large, inefficiency, testing result are easily affected by human factors, and the problem such as detected parameters consistance difference.
The technical solution adopted for the present invention to solve the technical problems is: a kind of valve body automatic detection device, it comprises the machine operating system for realizing the valve inleting water mouth of pipe and effluent pipe mouth blocking and inflation, and the electric control system of machine operating system action in Control experiment process.
Wherein, machine operating system comprises the fixed mount for settling valve body, the first pneumatic mechanism above the water inlet pipe mouth being positioned at valve body, and is positioned at second pneumatic mechanism of effluent pipe mouth side of valve body.
First pneumatic mechanism comprises the first master cylinder, and the first cylinder linkage board that can move up and down under the first master cylinder drives, is arranged on the first pneumatic gag on the first cylinder linkage board and suitable with water inlet pipe mouth, and the first countercylinder.This first countercylinder is connected with the first pneumatic gag by the first push rod, and the sidewall of the first push rod is provided with the first inflation inlet, and the bottom of the first pneumatic gag is provided with the first pore communicated with the first inflation inlet.Preferably, the bottom of above-mentioned first push rod is provided with the first groove briquetting, the O RunddichtringO matched with the first groove briquetting is provided with at the outer rim place of the first pneumatic gag, above-mentioned first countercylinder does axially-movable for driving the first groove briquetting, first groove briquetting does axial compression to an O RunddichtringO under the effect of the first countercylinder, make it to be radially expanded, to reach complete hermetic effect between the first pneumatic gag external diameter and water inlet pipe mouth internal diameter.Said structure is for completing the detection to valve body on the suction side.Preferably, for convenience of the motion of the first master cylinder, also comprise the first master cylinder guide rail vertically arranged.
Second pneumatic mechanism comprises the second master cylinder, can the second cylinder linkage board of side-to-side movement under the second master cylinder drives, and is arranged on the second pneumatic gag on the second cylinder linkage board and suitable with effluent pipe mouth, and the second countercylinder.This second countercylinder is connected with the second pneumatic gag by the second push rod, and the sidewall of the second push rod is provided with the second inflation inlet, and the bottom of the second pneumatic gag is provided with the second pore communicated with the second inflation inlet.Preferably, the bottom of above-mentioned second push rod is provided with the second groove briquetting, the 2nd O RunddichtringO matched with the second groove briquetting is provided with at the outer rim place of the second pneumatic gag, above-mentioned second countercylinder does side-to-side movement for driving the second groove briquetting, second groove briquetting makes transverse shear stress to the 2nd O RunddichtringO under the effect of the second countercylinder, make it longitudinal dilatation, to reach complete hermetic effect between the second pneumatic gag external diameter and effluent pipe mouth internal diameter.Said structure is similar to the first pneumatic mechanism, for the detection to valve outlet side.For improving the stability of action further, also comprise the second master cylinder guide rail and the second countercylinder guide rail.
Described electric control system comprises Switching Power Supply, Programmable Logic Controller, baroceptor, air pressure change comparator circuit, testing result display, relay group and solenoid valve group.Wherein, Switching Power Supply, for providing the power supply in test process needed for electric control system.Programmable Logic Controller, for sending signal and then controlling other components and parts actions in pre-set programs.Relay group, receives the instruction that Programmable Logic Controller exports on the one hand, is connected on the other hand, makes pneumatic means follow procedure complete required action with solenoid valve group.Baroceptor, for detecting the atmospheric pressure value of valve body on the suction side or outlet side between hold period.Air pressure change comparator circuit, for being compared by the above-mentioned atmospheric pressure value detected, evaluating this value has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective.Testing result display, for presenting testing result.The process steps that the present invention detects according to draining valve, action and time, enroll Programmable Logic Controller on request, control corresponding relay by Programmable Logic Controller output order, drive electromagnetic valve of gas circuit to make pneumatic means follow procedure complete required action, reach the object automatically detected.
During work, the first master cylinder drive the first cylinder linkage board and be arranged on the first countercylinder on this first cylinder linkage board, the first pneumatic gag moves downward together, and then completes the action that the first pneumatic gag enters water inlet pipe mouth.Then, the first countercylinder is started working, and promotes above-mentioned groove briquetting and moves downward, after an O RunddichtringO is squeezed, diameter becomes large, and turgor, between the first pneumatic gag external diameter and water inlet pipe mouth internal diameter, reaches sealing function.Then, be inflated to authorised pressure by the first inflation inlet to body cavity, and keep number pressure second, between hold period, detecting its air pressure by baroceptor has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective.A series of action is all that the instruction sent by Programmable Logic Controller controls above, and after completing influent side detection, Programmable Logic Controller can send instruction, and start the pneumatic gag in effluent pipe mouth place second and start action, its process, principle are identical with influent side.Finally, after the detection completing influent side and water outlet side respectively, the detection of valve body is completed.
As this theme of a kind of valve body automatic testing method of the present invention, it comprises the steps: 101, start detection button, 102, first master cylinder work, 103, first countercylinder work, 104, inflation pressurize, 105, baroceptor works, 106, air pressure change comparator circuit works, 107, display testing result, 108, first pneumatic mechanism resets, 109, second master cylinder work, 110, second countercylinder work, 111, inflation pressurize, 112, baroceptor works, 113, air pressure change comparator circuit works, 114, display testing result, 115, second pneumatic mechanism resets, 116, detect and terminate.
The action that the present invention adopts programmed control first pneumatic mechanism, the second pneumatic mechanism completes each step automatically, automatic control inflationtime and dwell time, automatic detection air pressure change, thus judge that whether qualified it is, complete from artificial to machine, from manually to automatic change; Meanwhile, this device changes immersion detection mode traditional for many years, completes the change from " wetting " to " doing ".
In addition, compared with prior art, its advantage is in the present invention:
1, alleviate the labour intensity of workman, except clamping and take off except valve body to be measured, everything is all completed automatically by pick-up unit of the present invention.
2, effectively improve working environment, traditional " wet survey method " is changed into " dry survey method ", thoroughly solves the problem of working environment humidity.
3, avoid the impact of human factor on testing result, because test parameter inputs in the programmable controller, automatically detect judgement by the present invention, avoid artificial flase drop and undetected possibility, ensure that the consistance of Product checking parameter simultaneously.
4, improve work efficiency, because testing completes automatically primarily of pick-up unit of the present invention, a workman can look after this device of multiple stage, therefore, can greatly increase work efficiency.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is side view of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is the stereographic map of tested valve body in the present invention.
Fig. 4 is the schematic diagram of electric control system in the present invention.
Fig. 5 is the process flow diagram of valve body automatic testing method in the present invention.
In figure, 1, draining valve; 2, water inlet pipe mouth; 3, effluent pipe mouth; 4, fixed mount; 5, the first pneumatic gag; 6, an O RunddichtringO; 7, the first cylinder linkage board; 8, the first inflation inlet; 9, the first countercylinder; 10, the first master cylinder; 11, the first master cylinder guide rail; 12, the second pneumatic gag; 13, the second cylinder linkage board; 14, the second countercylinder guide rail; 15, the second master cylinder guide rail; 16, the second countercylinder; 17, the second master cylinder; 18, the second pneumatic fixed mount; 19, the first pneumatic fixed mount; 20, working plate; 21, Switching Power Supply; 22, Programmable Logic Controller; 23, baroceptor; 24, air pressure change comparator circuit; 25, testing result display; 26, relay group; 27, solenoid valve group.
Embodiment
Embodiment,
See also Fig. 1 to 3, a kind of valve body automatic detection device, is especially directed to the automatic detection device of draining valve 1.This draining valve 1 have water inlet pipe mouth 2 and effluent pipe mouth 3.Said apparatus comprises the machine operating system blocking for realizing water inlet pipe for drain valve mouth 2 and effluent pipe mouth 3 and inflate, and the electric control system of machine operating system action in Control experiment process.
Wherein, machine operating system comprises the first pneumatic mechanism above the water inlet pipe mouth 2 being positioned at draining valve, be positioned at the second pneumatic mechanism of effluent pipe mouth 3 side of draining valve, for settling the fixed mount 4 of draining valve 1, for installing the first pneumatic mechanism first pneumatic fixed mount 19, and the second pneumatic fixed mount 18 for installing the second pneumatic mechanism.
The fixed mount 4 of the first pneumatic mechanism fixed mount 19, second pneumatic mechanism fixed mount 18 and arrangement draining valve 1 is installed on working plate 20.
First pneumatic mechanism comprises the first master cylinder guide rail 11, be arranged on the first master cylinder 10 on the first master cylinder guide rail 11, the first cylinder linkage board 7 that can move up and down under the first master cylinder 10 drives, be arranged on the first pneumatic gag 5 on the first cylinder linkage board 7 and suitable with water inlet pipe mouth 2, and the first countercylinder 9 that the first groove briquetting for driving gag 5 pneumatic with first to be connected moves up and down.This first countercylinder 9 is connected with the first pneumatic gag 5 by the first push rod, and the bottom centre that the sidewall of the first push rod is provided with the pneumatic gag 5 of the first inflation inlet 8, first is provided with the first pore (not shown) communicated with the first inflation inlet 8.Be provided with the first groove briquetting in the bottom of the first push rod, be provided with the O RunddichtringO 6 matched with the first groove briquetting at the outer rim place of the first pneumatic gag 5.First groove briquetting is under the effect of the first countercylinder, and axial compression the one O RunddichtringO, makes it to be radially expanded.
Second pneumatic mechanism comprises the second master cylinder guide rail 15, be arranged on the second master cylinder 17 on the second master cylinder guide rail 15, can the second cylinder linkage board 13 of side-to-side movement under the second master cylinder 17 drives, be arranged on the second pneumatic gag 12 on the second cylinder linkage board 13 and suitable with effluent pipe mouth 3, and the second countercylinder 16 of side-to-side movement made by the second groove briquetting for driving gag 12 pneumatic with second to be connected.Second countercylinder 16 is arranged on the second countercylinder guide rail 14.This second countercylinder 16 is connected with the second pneumatic gag 12 by the second push rod, the sidewall of the second push rod is provided with the second inflation inlet (not shown), and the bottom of the second pneumatic gag 12 is provided with the second pore (not shown) communicated with the second inflation inlet.Be provided with the second groove briquetting in the bottom of the second push rod, be provided with the 2nd O RunddichtringO matched with the second groove briquetting at the outer rim place of the second pneumatic gag 12.Second groove briquetting is under the effect of the second countercylinder, and transverse shear stress the 2nd O RunddichtringO, makes it longitudinal dilatation.
Said structure is similar to the first pneumatic mechanism, for the detection to valve outlet side.
Refer to Fig. 4, electric control system comprises Switching Power Supply 21, Programmable Logic Controller 22, baroceptor 23, air pressure change comparator circuit 24, testing result display 25, relay group 26 and solenoid valve group 27.
Wherein, Switching Power Supply 21, for providing the power supply needed for electric control system.
Programmable Logic Controller 22, for sending command signal by the program preset and then control other components and parts actions.
Relay group 26, receives the instruction that Programmable Logic Controller 22 exports on the one hand, is connected on the other hand, makes pneumatic means follow procedure complete required action with solenoid valve group 27.
Baroceptor 23, for detecting the atmospheric pressure value of draining valve on the suction side or outlet side between hold period.
Air pressure change comparator circuit 24, for being compared by the above-mentioned atmospheric pressure value detected, evaluating this value has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective.
Testing result display 25, for presenting testing result.
Refer to Fig. 5, a kind of draining valve automatic testing method, comprises the steps:
101, start detection button; Electric control system is energized and starts working.
102, the first master cylinder work; First master cylinder drive the first cylinder linkage board and be arranged on the first countercylinder on this first cylinder linkage board, the first pneumatic gag moves downward, together until stop when the first pneumatic gag enters water inlet pipe mouth.
103, the first countercylinder work; Promote the first groove briquetting extruding the one O RunddichtringO of an O RunddichtringO upper end, make it diameter and become large also swelling between the first pneumatic gag external diameter and water inlet pipe mouth internal diameter.
104, pressurize is inflated; Programmable Logic Controller instruction unpack inflation solenoid valve, makes pressurized air by the first inflation inlet and the first pore to draining valve influent side valve interacvity air-filling, until reach authorised pressure, and keeps number pressure second.
105, baroceptor work; The force value of draining valve on the suction side between hold period is detected in real time.
106, air pressure change comparator circuit work; For being compared by the above-mentioned atmospheric pressure value detected, evaluating this value has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective.
107, show testing result, test result is presented.
108, the first pneumatic mechanism resets; Programmable Logic Controller instruction first pneumatic mechanism gets back to initial position.
109, the second master cylinder work, the second master cylinder drive the second cylinder linkage board and be arranged on the second countercylinder on this second cylinder linkage board, the second pneumatic gag moves right, together until stop when the second pneumatic gag enters the effluent pipe mouth of draining valve.
110, the second countercylinder work, promotes the second groove briquetting extruding the 2nd O RunddichtringO of the 2nd O RunddichtringO upper end, makes it diameter and becomes large also swelling between the second pneumatic gag external diameter and effluent pipe mouth internal diameter.
111, inflate pressurize, Programmable Logic Controller instruction unpack inflation solenoid valve, makes pressurized air by the second inflation inlet and the second pore to draining valve water outlet side valve interacvity air-filling, until reach authorised pressure, and keeps number pressure second.
112, baroceptor work, detects in real time to the force value of draining valve outlet side between hold period.
113, air pressure change comparator circuit work, for being compared by the above-mentioned atmospheric pressure value detected, evaluating this value has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective.
114, show testing result, test result is presented.
115, the second pneumatic mechanism resets, and Programmable Logic Controller instruction second pneumatic mechanism gets back to initial position.
116, end is detected.
Above a kind of draining valve automatic detection device provided by the present invention is described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping, not scope of the present invention is limited, simultaneously under not departing from the present invention and designing the prerequisite of spirit, those of ordinary skill in the art are to structure of the present invention, the equivalence change that feature and principle are done or decoration, as foregoing invention is applied on the valve body of other similar structures, all should fall within the scope of protection of the present invention.
Claims (7)
1. a valve body automatic detection device, is characterized in that: comprise the machine operating system for realizing the valve inleting water mouth of pipe and effluent pipe mouth blocking and inflation, and the electric control system of machine operating system action in Control experiment process; Described machine operating system comprises the fixed mount for settling valve body, the first pneumatic mechanism above the water inlet pipe mouth being positioned at valve body, and is positioned at second pneumatic mechanism of effluent pipe mouth side of valve body.
2. valve body automatic detection device as claimed in claim 1, it is characterized in that: described first pneumatic mechanism comprises the first master cylinder, the first cylinder linkage board that can move up and down under the first master cylinder drives, be arranged on the first pneumatic gag on the first cylinder linkage board and suitable with water inlet pipe mouth, and the first countercylinder; This first countercylinder is connected with the first pneumatic gag by the first push rod, and the sidewall of the first push rod is provided with the first inflation inlet, and the bottom of the first pneumatic gag is provided with the first pore communicated with the first inflation inlet.
3. valve body automatic detection device as claimed in claim 2, is characterized in that: the bottom of described first push rod is provided with the first groove briquetting, is provided with the O RunddichtringO matched with the first groove briquetting at the outer rim place of the first pneumatic gag; Described first countercylinder does axially-movable for driving the first groove briquetting.
4. valve body automatic detection device as claimed in claim 1, it is characterized in that: described second pneumatic mechanism comprises the second master cylinder, can the second cylinder linkage board of side-to-side movement under the second master cylinder drives, be arranged on the second pneumatic gag on the second cylinder linkage board and suitable with effluent pipe mouth, and the second countercylinder; This second countercylinder is connected with the second pneumatic gag by the second push rod, and the sidewall of the second push rod is provided with the second inflation inlet, and the bottom of the second pneumatic gag is provided with the second pore communicated with the second inflation inlet.
5. valve body automatic detection device as claimed in claim 4, is characterized in that: the bottom of described second push rod is provided with the second groove briquetting, is provided with the 2nd O RunddichtringO matched with the second groove briquetting at the outer rim place of the second pneumatic gag; Described second countercylinder does side-to-side movement for driving the second groove briquetting.
6. valve body automatic detection device as described in any one of claim 1 to 5, is characterized in that: described electric control system comprises Switching Power Supply, Programmable Logic Controller, baroceptor, air pressure change comparator circuit, testing result display, relay group and solenoid valve group; Wherein, Switching Power Supply, for providing the power supply in test process needed for electric control system; Programmable Logic Controller, for sending signal and then controlling other components and parts actions in pre-set programs; Relay group, receives the instruction that Programmable Logic Controller exports on the one hand, is connected on the other hand, makes pneumatic means follow procedure complete required action with solenoid valve group; Baroceptor, for detecting the atmospheric pressure value of valve body on the suction side or outlet side between hold period; Air pressure change comparator circuit, for being compared by the above-mentioned atmospheric pressure value detected, evaluating this value has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective; Testing result display, for presenting testing result.
7. a draining valve automatic testing method, comprises the steps:
101, start detection button; Electric control system is energized and starts working;
102, the first master cylinder work; First master cylinder drive the first cylinder linkage board and be arranged on the first countercylinder on this first cylinder linkage board, the first pneumatic gag moves downward, together until stop when the first pneumatic gag enters water inlet pipe mouth;
103, the first countercylinder work; Promote the first groove briquetting extruding the one O RunddichtringO of an O RunddichtringO upper end, make it diameter and become large also swelling between the first pneumatic gag external diameter and water inlet pipe mouth internal diameter;
104, pressurize is inflated; Programmable Logic Controller instruction unpack inflation solenoid valve, makes pressurized air by the first inflation inlet and the first pore to draining valve influent side valve interacvity air-filling, until reach authorised pressure, and keeps number pressure second;
105, baroceptor work; The force value of draining valve on the suction side between hold period is detected in real time;
106, air pressure change comparator circuit work; For being compared by the above-mentioned atmospheric pressure value detected, evaluating this value has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective;
107, show testing result, test result is presented;
108, the first pneumatic mechanism resets; Programmable Logic Controller instruction first pneumatic mechanism gets back to initial position;
109, the second master cylinder work, the second master cylinder drive the second cylinder linkage board and be arranged on the second countercylinder on this second cylinder linkage board, the second pneumatic gag moves right, together until stop when the second pneumatic gag enters the effluent pipe mouth of draining valve;
110, the second countercylinder work, promotes the second groove briquetting extruding the 2nd O RunddichtringO of the 2nd O RunddichtringO upper end, makes it diameter and becomes large also swelling between the second pneumatic gag external diameter and effluent pipe mouth internal diameter;
111, inflate pressurize, Programmable Logic Controller instruction unpack inflation solenoid valve, makes pressurized air by the second inflation inlet and the second pore to draining valve water outlet side valve interacvity air-filling, until reach authorised pressure, and keeps number pressure second;
112, baroceptor work, detects in real time to the force value of draining valve outlet side between hold period;
113, air pressure change comparator circuit work, for being compared by the above-mentioned atmospheric pressure value detected, evaluating this value has unchanged, if air pressure is constant, then it is qualified to be judged to, otherwise is defective;
114, show testing result, test result is presented;
115, the second pneumatic mechanism resets, and Programmable Logic Controller instruction second pneumatic mechanism gets back to initial position;
116, end is detected.
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| CN106092549B (en) * | 2016-08-03 | 2018-07-10 | 华北电力大学苏州研究院 | The detection device of automatic drain valve detection device |
| CN106051293B (en) * | 2016-08-03 | 2018-08-24 | 江苏恒达机械制造有限公司 | Automatic drain valve detection device |
| CN106054003B (en) * | 2016-08-03 | 2018-10-26 | 王月娟 | The energization detection components of automatic drain valve detection device |
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