CN109323729A - A kind of relay contact spring system automatic detection device and method - Google Patents
A kind of relay contact spring system automatic detection device and method Download PDFInfo
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- CN109323729A CN109323729A CN201811545145.4A CN201811545145A CN109323729A CN 109323729 A CN109323729 A CN 109323729A CN 201811545145 A CN201811545145 A CN 201811545145A CN 109323729 A CN109323729 A CN 109323729A
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- relay
- spring system
- stationary contact
- contact spring
- dynamometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Abstract
The present invention discloses a kind of relay contact spring system automatic detection device and method, is mainly made of test platform, measured material, linear drive motor, dynamometer, gap camera, pressure camera and host computer；Measured material and linear drive motor are fixed on test platform.Relay to be measured is clamped in measured material.Dynamometer is fixed on the output end of linear drive motor, and the dynamometry end of dynamometer is in contact with the movable feeler lever of relay contact spring system.Gap camera and pressure camera are located at the surface of measured material and dynamometer, both with upper connection.The control signal input of host computer is connect with relay contact spring system；The control signal output of host computer is connect with the control terminal of linear drive motor, gap camera and pressure camera.The present invention has high degree of automation, does not damage contact and the accurate high problem of testing result.
Description
Technical field
The present invention relates to relay technical fields, and in particular to a kind of relay contact spring system automatic detection device and side
Method.
Background technique
Contact spring system is electromagnetic relay important component, and contactor gap and pressure are the important parameter indexs of contact spring system.
In current relay assembling process, operator uses patch hand dipping contactor gap.Firstly, since patch is anti-when measurement
Multiple and contact working position friction, thus easy damaged contact working position coating, and easily bring fifth wheel into contact working position.
It is measured secondly, contact force holds dynamometer by operator, the multiple measurement results of different operation person or same operator
It is whether consistent and manually whether accurate to dynamometer reading all in the presence of uncertainty.Finally, there is also labor for manual measurement mode
Fatigue resistance is big, fatiguability and the problem that causes accuracy low.
Summary of the invention
To be solved by this invention is that easy damaged contact present in existing manual measurement contact spring system, subjectivity are strong, quasi-
The problem of exactness is low and large labor intensity provides a kind of relay contact spring system automatic detection device and method.
To solve the above problems, the present invention is achieved by the following technical solutions:
A kind of relay contact spring system automatic detection device, mainly by test platform, measured material, linear drive motor,
Dynamometer, gap camera, pressure camera and host computer composition；Measured material and linear drive motor are fixed on test platform
On；Relay to be measured is clamped in measured material, and the normally closed stationary contact bar side of relay contact spring system is close to linear drives
Motor drive direction, the normally opened stationary contact bar side of relay contact spring system far from linear drive motor direction, relay contact spring system
Movable feeler lever is between normally closed stationary contact bar and normally opened stationary contact bar；Dynamometer is fixed on the output end of linear drive motor, dynamometer
Dynamometry end be in contact with the movable feeler lever of relay contact spring system；Linear drive motor drives dynamometer movement, the survey of dynamometer
Power end pushes movable feeler lever to move from normally closed stationary contact bar to normally opened stationary contact bar direction；For acquiring the feeler lever figure of relay contact spring system
The gap camera of picture is located at the surface of measured material, and the output end of gap camera and a data input pin of host computer connect
It connects；Pressure camera for acquiring dynamometer dial plate image is located at the surface of dynamometer, the output end of pressure camera with
Another data input pin of host computer connects；The control signal input of host computer is connect with relay contact spring system；Host computer
Control signal output connect with the control terminal of linear drive motor, gap camera and pressure camera.
As an improvement, the relay contact spring system automatic detection device, still further comprises rotating platform, the rotary flat
Platform is fixed on test platform, and measured material is installed on the rotating platform；The connection of the control terminal of host computer and rotating platform.
As an improvement, the relay contact spring system automatic detection device, still further comprises light source, which hangs downward
It is located at the top of test platform.
A kind of relay contact spring system automatic testing method, specifically comprises the following steps:
Relay to be measured is clamped in measured material by step 1, and allows the normally closed stationary contact bar one of relay contact spring system
Side close to linear drive motor direction, the normally opened stationary contact bar side of relay contact spring system far from linear drive motor direction, after
The movable feeler lever of electric appliance contact spring system is between normally closed stationary contact bar and normally opened stationary contact bar；
Under step 2, original state, the movable feeler lever of relay contact spring system is in contact with normally closed stationary contact bar；Meanwhile enabling dynamometry
The dynamometry end of meter is in contact with the movable feeler lever of relay contact spring system；
Step 3, device are powered on, and host computer receives the switching signal that relay contact spring system is sent, and controls
The acquisition of gap camera and pressure camera acquire image simultaneously, gap camera by collected relay contact spring system
Feeler lever image is sent to host computer, and the collected dynamometer dial plate image of institute is sent to host computer by pressure camera；
Step 4, for step 3 relay contact spring system feeler lever image, host computer is to normally closed stationary contact bar, normally opened stationary contact
Bar and movable feeler lever edge carry out edge detection positioning, and are calculated accordingly normally closed between normally closed stationary contact bar and normally opened stationary contact bar
Gap size between gap size and normally opened stationary contact bar and movable feeler lever；It is upper for the dynamometer dial plate image of step 3
Machine carries out edge detection positioning to dynamometer pointer edge, and dynamometer pointer is calculated accordingly for the coordinate value of origin,
To obtain the initial pressure value of dynamometer；
Step 5, host computer issue control signal to linear drive motor, drive linear drive motor movement；Linear drives
Motor drives dynamometer movement, and dynamometer pushes the movable feeler lever of relay contact spring system from normally closed one side of stationary contact bar to normally opened stationary contact
The movement of bar side；
Step 6, when the movable feeler lever of relay contact spring system and normally opened stationary contact bar contact, host computer receives relay touching
The switching signal that spring system is sent, and control the acquisition of gap camera and pressure camera while acquiring image, gap camera shooting
The feeler lever image of the collected relay contact spring system of institute is sent to host computer by head, pressure camera by a collected dynamometry
Meter dial plate image is sent to host computer；
Step 7, for step 6 relay contact spring system feeler lever image, host computer is to normally closed stationary contact bar, normally opened stationary contact
Bar and movable feeler lever edge carry out edge detection positioning, and are calculated accordingly normally opened between normally closed stationary contact bar and normally opened stationary contact bar
Gap size between gap size and normally closed stationary contact bar and movable feeler lever；It is upper for the dynamometer dial plate image of step 6
Machine carries out edge detection positioning to dynamometer pointer edge, and dynamometer pointer is calculated accordingly for the coordinate value of origin,
To obtain the current pressure values of dynamometer；
Step 8, host computer by the obtained current pressure values of step 7 subtract step 4 obtained initial pressure value, obtain
To the pressure value of relay contact spring system.
As an improvement, the relay contact spring system automatic testing method, still further comprises following steps:
Step 9, host computer are according to the normally closed clearance ruler between the obtained normally closed stationary contact bar of step 4 and normally opened stationary contact bar
Gap size between very little, normally opened stationary contact bar and movable feeler lever, between the obtained normally closed stationary contact bar of step 7 and normally opened stationary contact bar
Gap size and the obtained relay contact spring system of step 8 between normally opened gap size, normally closed stationary contact bar and movable feeler lever
Pressure value preset threshold corresponding with presetting be compared, provide the normally closed stationary contact bar of the group, normally opened of relay contact spring system
Stationary contact bar and movable feeler lever whether He Ge judging result.
As an improvement, the relay contact spring system automatic testing method, still further comprises following steps:
Step 10, host computer issue control signal to rotating platform, drive rotating platform selection；Rotating platform drives measurement
Fixture and its relay to be measured rotation, with the process for the 2-9 that repeats the above steps, another group of measuring relay contact spring system is normal
Whether qualified close stationary contact bar, normally opened stationary contact bar and movable feeler lever.
Compared with prior art, the present invention carries out electromagnetic relay using machine vision technique and machine Learning Theory method
The detection and identification of contact spring system contactor gap and pressure with high degree of automation, do not damage contact and testing result standard
Really high problem.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of relay contact spring system automatic detection device.
Figure label: 1, test platform；2, measured material；3, linear drive motor；4, dynamometer；5, gap camera；
6, pressure camera；7, rotating platform；8, relay.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific example, and referring to attached
Figure, the present invention is described in more detail.It should be noted that the direction term mentioned in example, for example, "upper", "lower",
" in ", " left side " " right side ", "front", "rear" etc., be only the direction with reference to attached drawing.Therefore, the direction used is intended merely to explanation
For limiting the scope of the invention.
Referring to Fig. 1, a kind of relay contact spring system automatic detection device, mainly by light source, test platform 1, rotating platform
7, measured material 2, linear drive motor 3, dynamometer 4, gap camera 5, pressure camera 6 and host computer composition.
Measured material 2 and linear drive motor 3 are fixed on test platform 1.Relay 8 to be measured is clamped in measured material
In 2, and the normally closed stationary contact bar side of 8 contact spring system of relay is close to 3 direction of linear drive motor, 8 contact spring system of relay
Normally opened stationary contact bar side far from 3 direction of linear drive motor, the movable feeler lever of 8 contact spring system of relay be located at normally closed stationary contact bar and often
It opens between stationary contact bar.Dynamometer 4 is fixed on the output end of linear drive motor 3, and the dynamometry end of dynamometer 4 and relay 8 touch spring
The movable feeler lever of system is in contact.Linear drive motor 3 drives dynamometer 4 to move, and the dynamometry end of dynamometer 4 pushes movable feeler lever from normal
Stationary contact bar is closed to move to normally opened stationary contact bar direction.In view of the contact spring system of relay 8 to be measured includes that more than one set is normally closed quiet
Feeler lever, normally opened stationary contact bar and movable feeler lever, are provided with rotating platform 7, i.e. rotary flat between the test platform 1 and measured material 2
Platform 7 is fixed on test platform 1, and measured material 2 is mounted on rotating platform 7.Host computer is connect with the control terminal of rotating platform 7.
Rotating platform 7 drives measured material 2 and its relay to be measured 8 to rotate, and another group to realize 8 contact spring system of relay is normally closed
The qualification determination of stationary contact bar, normally opened stationary contact bar and movable feeler lever.
Gap camera 5 for acquiring the feeler lever image of 8 contact spring system of relay is located at the surface of measured material 2,
The output end of gap camera 5 and a data input pin of host computer connect.Pressure for acquiring 4 dial plate image of dynamometer is taken the photograph
The surface for being located at dynamometer 4 as first 6, the output end of pressure camera 6 and another data input pin of host computer connect.It is upper
The control signal input of machine is connect with 8 contact spring system of relay.The control signal output and linear drive motor of host computer
3, gap camera 5 is connected with the control terminal of pressure camera 6.In order to allow gap camera 5 and pressure camera 6 to acquire
To clearly image, device further includes a light source, which is hung on the top of test platform 1 downward.
A kind of relay contact spring system automatic testing method that above-mentioned apparatus is realized, characterized in that specifically include as follows
Step:
Relay 8 to be measured is clamped in measured material 2 by step 1, and allows the normally closed stationary contact of 8 contact spring system of relay
Bar side is close to 3 direction of linear drive motor, and the normally opened stationary contact bar side of 8 contact spring system of relay is far from linear drive motor 3
Direction, the movable feeler lever of 8 contact spring system of relay is between normally closed stationary contact bar and normally opened stationary contact bar.
Under step 2, original state, the movable feeler lever of 8 contact spring system of relay is in contact with normally closed stationary contact bar.Meanwhile it enabling and surveying
The dynamometry end of power meter 4 is in contact with the movable feeler lever of 8 contact spring system of relay.
Step 3, device are powered on, and host computer receives the switching signal that 8 contact spring system of relay is sent, and controls
The acquisition of gap camera 5 and pressure camera 6 acquire image simultaneously, and the collected relay 8 of institute is touched spring system by gap camera 5
The feeler lever image of system is sent to host computer, and the collected 4 dial plate image of dynamometer of institute is sent to host computer by pressure camera 6.
Step 4, for step 38 contact spring system of relay feeler lever image, host computer is to normally closed stationary contact bar, normally opened quiet
Feeler lever and movable feeler lever edge carry out edge detection positioning, and are calculated accordingly normal between normally closed stationary contact bar and normally opened stationary contact bar
Close the gap size between gap size and normally opened stationary contact bar and movable feeler lever.For the 4 dial plate image of dynamometer of step 3, on
Position machine carries out edge detection positioning to 4 pointer edge of dynamometer, and 4 pointer of dynamometer is calculated accordingly for the coordinate of origin
Value, to obtain the initial pressure value of dynamometer 4.
Step 5, host computer issue control signal to linear drive motor 3, and linear drive motor 3 is driven to move.Straight line drives
Dynamic motor 3 drives dynamometer 4 to move, and dynamometer 4 pushes the movable feeler lever of 8 contact spring system of relay from normally closed one side of stationary contact bar to normal
Open the movement of stationary contact bar side.
Step 6, when the movable feeler lever of 8 contact spring system of relay and normally opened stationary contact bar contact, host computer receives relay 8
The switching signal that contact spring system is sent, and control the acquisition of gap camera 5 and pressure camera 6 while acquiring image, gap
Camera 5 by the feeler lever image of collected 8 contact spring system of relay be sent to host computer, pressure camera 6 will be acquired
To 4 dial plate image of dynamometer be sent to host computer.
Step 7, for step 68 contact spring system of relay feeler lever image, host computer is to normally closed stationary contact bar, normally opened quiet
Feeler lever and movable feeler lever edge carry out edge detection positioning, and are calculated accordingly normal between normally closed stationary contact bar and normally opened stationary contact bar
Open the gap size between gap size and normally closed stationary contact bar and movable feeler lever.For the 4 dial plate image of dynamometer of step 6, on
Position machine carries out edge detection positioning to 4 pointer edge of dynamometer, and 4 pointer of dynamometer is calculated accordingly for the coordinate of origin
Value, to obtain the current pressure values of dynamometer 4.
Step 8, host computer by the obtained current pressure values of step 7 subtract step 4 obtained initial pressure value, obtain
To the pressure value of 8 contact spring system of relay.
Step 9, host computer are according to the normally closed clearance ruler between the obtained normally closed stationary contact bar of step 4 and normally opened stationary contact bar
Gap size between very little, normally opened stationary contact bar and movable feeler lever, between the obtained normally closed stationary contact bar of step 7 and normally opened stationary contact bar
The obtained relay 8 of gap size and step 8 between normally opened gap size, normally closed stationary contact bar and movable feeler lever touches spring system
The pressure value of system preset threshold corresponding with presetting is compared, provide 8 contact spring system of relay the normally closed stationary contact bar of the group, often
Open stationary contact bar and movable feeler lever whether He Ge judging result；
Step 10, host computer issue control signal to rotating platform 7, and rotating platform 7 is driven to select；Rotating platform 7 drives
Measured material 2 and its relay to be measured 8 rotate, and with the process for the 2-9 that repeats the above steps, provide 8 contact spring system of relay
Another group of normally closed stationary contact bar, normally opened stationary contact bar and movable feeler lever whether He Ge judging result.
Particularly, in the feeler lever image procossing to 8 contact spring system of relay, the present invention uses oneself of contact spring system reed
Moving template matching process principle is as follows:
The dxf vector file for wanting positioning reed is established by cad software, generates the template contours that can be scaled.Template
The selection of template scan unit used in matching 16 × 16, the image of industrial camera acquisition are 12,000,000 pixels.It will be from large format figure
It is computationally intensive as searching and the most consistent object of template, it to take a considerable amount of time.Algorithm first has to solve template matching height
Fastization problem, the SSDA method sequential similiarity detection proposed using Barnea et al.
Algorithm, problem are resolved.SSDA method calculates image fx, and y is in pixel u, non-the similarity mu, v of v are as follows:
With mu, v is as matching scale.The centre coordinate of not instead of template and picture registration part that u in formula, v are indicated,
Intersection top left corner pixel coordinate.The size of template are as follows: n × m.
If in image u, have at v with the consistent pattern of template, then mu, v value very little are then larger on the contrary.Especially in mould
Under plate and the complete inconsistent occasion of image lap, if each pixel and picture registration part respective pixel in template
Absolute value of the difference successively increase down, and will be radically increased.Therefore, during doing addition, if difference is exhausted
When to value part and being more than a certain threshold value, be considered as on this position there is no and the consistent pattern of template, to be transferred to down
Mu, v are calculated on one position.Due to calculating mu, v is plus and minus calculation, and this calculating just stops in most of position midways
Only, it therefore can significantly shorten the calculating time, improve matching speed.
To make template matching realize high accuracy positioning, in conjunction with characteristics of image, after light source is carried out reasonable Arrangement, image is made an uproar
Sound is small and contrast is big, and the template goodness of fit generated with DXF is high, and similarity shows more sharp distribution.In such a situa-tion,
Algorithm uses the feature matching method based on pattern contour.Algorithm above realizes with C++ and OpenCV, and the template matching time is
200ms~500ms, accuracy rate 100%.
Particularly, when handling 4 dial plate image of dynamometer, the present invention uses the acquisition methods of the reading of dynamometer 4
Principle it is as follows: dynamic acquisition pointer dynamic image extracts pointer center framework by Hough transform, detects graduation mark
And pointer position.The binary map of the pointer containing there are two is obtained using front and back image subtraction, then geometric transformation is done to original image, is led to
The geometric position for crossing calculating pointer and graduation mark obtains the reading of dynamometer 4.Algorithm above is realized with C++ and OpenCV, is read
Take success rate 100%.
The process of above-mentioned image procossing and the principal concern of non-present invention, i.e. edge detection algorithm can use existing skill
The existing edge detection algorithm of art.It can also be according to existing artificial survey in addition, how to judge whether 8 contact spring system of relay is qualified
The discrimination standard of amount is realized.Emphasis of the invention is to realize that contact spring system connects by the combined operating of hardware and software part
Point gap size automatic measurement and pressure value reading, reduce operator's labor intensity, improve contact spring system contact between
The accuracy of gap and pressure measurement improves working efficiency.
It should be noted that although the above embodiment of the present invention be it is illustrative, this be not be to the present invention
Limitation, therefore the invention is not limited in above-mentioned specific embodiment.Without departing from the principles of the present invention, all
The other embodiment that those skilled in the art obtain under the inspiration of the present invention is accordingly to be regarded as within protection of the invention.
Claims (6)
1. a kind of relay contact spring system automatic detection device, it is characterized in that: mainly by test platform (1), measured material (2),
Linear drive motor (3), dynamometer (4), gap camera (5), pressure camera (6) and host computer composition；
Measured material (2) and linear drive motor (3) are fixed on test platform (1)；Relay (8) to be measured is clamped in measurement
In fixture (2), and the normally closed stationary contact bar side of relay (8) contact spring system is close to linear drive motor (3) direction, relay
(8) the normally opened stationary contact bar side of contact spring system is far from linear drive motor (3) direction, the movable feeler lever of relay (8) contact spring system
Between normally closed stationary contact bar and normally opened stationary contact bar；Dynamometer (4) is fixed on the output end of linear drive motor (3), dynamometer
(4) dynamometry end is in contact with the movable feeler lever of relay (8) contact spring system；Linear drive motor (3) drives dynamometer (4) fortune
Dynamic, the dynamometry end of dynamometer (4) pushes movable feeler lever to move from normally closed stationary contact bar to normally opened stationary contact bar direction；
Gap camera (5) for acquiring the feeler lever image of relay (8) contact spring system be located at measured material (2) just
Side, the output end of gap camera (5) and a data input pin of host computer connect；For acquiring dynamometer (4) dial plate image
Pressure camera (6) be located at the surface of dynamometer (4), the output end of pressure camera (6) and another data of host computer
Input terminal connection；The control signal input of host computer is connect with relay (8) contact spring system；The control signal of host computer exports
End is connect with the control terminal of linear drive motor (3), gap camera (5) and pressure camera (6).
2. a kind of relay contact spring system automatic detection device according to claim 1, it is characterized in that: still further comprising
Rotating platform (7), the rotating platform (7) are fixed on test platform (1), and measured material (2) is mounted on rotating platform (7)；On
Position machine is connect with the control terminal of rotating platform (7).
3. a kind of relay contact spring system automatic detection device according to claim 1, it is characterized in that: still further comprising
Light source, the light source are hung on the top of test platform (1) downward.
4. a kind of relay contact spring system automatic testing method that claim 1 described device is realized, characterized in that specific packet
Include following steps:
Relay to be measured (8) is clamped in measured material (2) by step 1, and allows the normally closed quiet of relay (8) contact spring system
Feeler lever side is close to linear drive motor (3) direction, and the normally opened stationary contact bar side of relay (8) contact spring system is far from linear drives
Motor (3) direction, the movable feeler lever of relay (8) contact spring system is between normally closed stationary contact bar and normally opened stationary contact bar；
Under step 2, original state, the movable feeler lever of relay (8) contact spring system is in contact with normally closed stationary contact bar；Meanwhile enabling dynamometry
The dynamometry end of meter (4) is in contact with the movable feeler lever of relay (8) contact spring system；
Step 3, device are powered on, and host computer receives the switching signal that relay (8) contact spring system is sent, and control room
Gap camera (5) acquisition and pressure camera (6) acquire image simultaneously, and gap camera (5) is by the collected relay (8) of institute
The feeler lever image of contact spring system is sent to host computer, and collected dynamometer (4) the dial plate image of institute is sent by pressure camera (6)
To host computer；
Step 4, for step 3 relay (8) contact spring system feeler lever image, host computer is to normally closed stationary contact bar, normally opened stationary contact
Bar and movable feeler lever edge carry out edge detection positioning, and are calculated accordingly normally closed between normally closed stationary contact bar and normally opened stationary contact bar
Gap size between gap size and normally opened stationary contact bar and movable feeler lever；For dynamometer (4) dial plate image of step 3, on
Position machine carries out edge detection positioning to dynamometer (4) pointer edge, and dynamometer (4) pointer is calculated accordingly for origin
Coordinate value, to obtain the initial pressure value of dynamometer (4)；
Step 5, host computer issue control signal to linear drive motor (3), drive linear drive motor (3) movement；Straight line drives
Dynamic motor (3) drive dynamometer (4) movement, and dynamometer (4) pushes the movable feeler lever of relay (8) contact spring system from normally closed stationary contact bar
One side is moved to normally opened stationary contact bar side；
Step 6, when the movable feeler lever of relay (8) contact spring system and normally opened stationary contact bar contact, host computer receives relay (8)
The switching signal that contact spring system is sent, and control gap camera (5) acquisition and pressure camera (6) while acquiring image,
Gap camera (5) by the feeler lever image of collected relay (8) contact spring system be sent to host computer, pressure camera
(6) collected dynamometer (4) the dial plate image of institute is sent to host computer；
Step 7, for step 6 relay (8) contact spring system feeler lever image, host computer is to normally closed stationary contact bar, normally opened stationary contact
Bar and movable feeler lever edge carry out edge detection positioning, and are calculated accordingly normally opened between normally closed stationary contact bar and normally opened stationary contact bar
Gap size between gap size and normally closed stationary contact bar and movable feeler lever；For dynamometer (4) dial plate image of step 6, on
Position machine carries out edge detection positioning to dynamometer (4) pointer edge, and dynamometer (4) pointer is calculated accordingly for origin
Coordinate value, to obtain the current pressure values of dynamometer (4)；
Step 8, host computer by the obtained current pressure values of step 7 subtract step 4 obtained initial pressure value, obtain after
The pressure value of electric appliance (8) contact spring system.
5. requiring a kind of 4 relay contact spring system automatic testing methods according to claim, characterized in that also further wrap
Include following steps:
Step 9, host computer according between the obtained normally closed stationary contact bar of step 4 and normally opened stationary contact bar normally closed gap size, often
The gap size between stationary contact bar and movable feeler lever is opened, it is normally opened between the obtained normally closed stationary contact bar of step 7 and normally opened stationary contact bar
Gap size and the obtained relay of step 8 (8) contact spring system between gap size, normally closed stationary contact bar and movable feeler lever
Pressure value preset threshold corresponding with presetting be compared, provide relay (8) contact spring system the normally closed stationary contact bar of the group, often
Open stationary contact bar and movable feeler lever whether He Ge judging result.
6. requiring a kind of 5 relay contact spring system automatic testing methods according to claim, characterized in that also further wrap
Include following steps:
Step 10, host computer issue control signal to rotating platform (7), drive rotating platform (7) selection；Rotating platform (7) band
Dynamic measured material (2) and its relay to be measured (8) rotation, with the process for the 2-9 that repeats the above steps, measuring relay (8) touching
Whether the normally closed stationary contact bar of another group of spring system, normally opened stationary contact bar and movable feeler lever are qualified.
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| CN201811545145.4A CN109323729A (en) | 2018-12-17 | 2018-12-17 | A kind of relay contact spring system automatic detection device and method |
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| CN111174832A (en) * | 2020-02-12 | 2020-05-19 | 深圳市富康实业有限公司 | Method for measuring clearance, separating force and overtravel of relay |
| CN111624203A (en) * | 2020-06-16 | 2020-09-04 | 河北工业大学 | Relay contact alignment non-contact measurement method based on machine vision |
| CN114279611A (en) * | 2021-12-14 | 2022-04-05 | 无锡市飞沪科技有限公司 | Full-intelligent relay dynamic and static reed correcting device, method, equipment and storage medium |
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| CN111174832A (en) * | 2020-02-12 | 2020-05-19 | 深圳市富康实业有限公司 | Method for measuring clearance, separating force and overtravel of relay |
| CN111624203A (en) * | 2020-06-16 | 2020-09-04 | 河北工业大学 | Relay contact alignment non-contact measurement method based on machine vision |
| CN111624203B (en) * | 2020-06-16 | 2023-07-04 | 河北工业大学 | Relay contact point alignment non-contact measurement method based on machine vision |
| CN114279611A (en) * | 2021-12-14 | 2022-04-05 | 无锡市飞沪科技有限公司 | Full-intelligent relay dynamic and static reed correcting device, method, equipment and storage medium |
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