CN210626620U - Micro-gap switch stroke measurement system - Google Patents
Micro-gap switch stroke measurement system Download PDFInfo
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- CN210626620U CN210626620U CN201921203939.2U CN201921203939U CN210626620U CN 210626620 U CN210626620 U CN 210626620U CN 201921203939 U CN201921203939 U CN 201921203939U CN 210626620 U CN210626620 U CN 210626620U
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- microswitch
- control rod
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- measurement system
- gap switch
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Abstract
A microswitch stroke measuring system comprises a measuring table, wherein an installation platform is arranged on the measuring table, and a microswitch to be tested is installed on the installation platform in the testing process. The circuit layout design of the power system can form two parallel circuits which are respectively conducted by the micro switches. The utility model discloses still be provided with response unit, response unit respectively with foretell two circuit connection, when micro-gap switch state changes, can show through response unit directly perceived like this. And the control system is also arranged and can accurately control the micro switch. The utility model discloses need not carry out the bonding wire operation to micro-gap switch. The utility model has the advantages of simple structure, convenient to use, it has solved among the prior art to the problem that measurement work volume is big, measurement of efficiency is low that micro-gap switch's traditional test method exists.
Description
Technical Field
The embodiment of the utility model provides a microswitch travel measurement system is related to microswitch performance test equipment technical field, concretely relates to microswitch performance test equipment.
Background
Referring to fig. 1, fig. 1 is a schematic structural diagram of a typical microswitch in the prior art.
A microswitch is a snap action control mechanism with a small contact spacing, also known as a sensitive switch. The microswitch is internally provided with a normally closed contact a, a normally open contact b and a movable contact c, and the movable contact is linked with a control rod of the microswitch so as to realize the contact with the normally closed contact or the normally open contact.
During the action of the moving contact, it undergoes three phases of travel: 1. a first stroke L gradually separating from a contact (normally closed contact or normally open contact) in a state of contacting the contact; 2. a second stroke M, which does not contact any one of the contacts when moving in the direction of the other contact; 3. and a third stroke N, approaching and contacting the other contact. In the three travel stages, in order to ensure the control sensitivity and control accuracy of the micro-switch, the following requirements are required for the action of the movable contact: the first stroke section requires that the movable contact and the normally closed contact are reliably disconnected within a certain stroke; the second stroke section requires that the movable contact and the normally closed contact are reliably disconnected in a certain stroke, and meanwhile, the movable contact and the normally open contact cannot be connected; the third stroke requires that the moving contact and the normally open contact are reliably closed.
In the prior art, the stroke detection of the micro switch is generally realized by using a caliper, a resistance instrument and the like and by welding a wire to the micro switch, namely: part of products are extracted according to a certain proportion, the three stroke sections are respectively measured after the extracted microswitch is subjected to wire welding, although part of products are extracted, the wire welding is carried out on each extracted product, then the measurement is carried out, the measurement workload is very large, and the efficiency is very low.
SUMMERY OF THE UTILITY MODEL
In summary, how to solve the problems of large measurement workload and low measurement efficiency of the conventional test method for the micro switch in the prior art becomes a problem to be solved urgently by those skilled in the art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the utility model provides a micro-gap switch stroke measurement system, this micro-gap switch stroke measurement system includes:
the control rod is used for performing fixed-distance segmented pressing on a control rod of the micro switch, a stepped surface is arranged at one end and the lower side surface of the control rod, the stepped surface is a three-level stepped surface, and the control rod can move transversely;
the measuring table is used for fixing the microswitch in the measuring process, and a positioning block is arranged on the measuring table;
the power system comprises a power supply and response units, wherein a first wiring terminal which is electrically connected with a public wiring terminal of the microswitch is connected with the positive electrode of the power supply, the response units are provided with a plurality of groups which are divided into two groups, the two groups of response units are arranged in parallel, one group of response units are electrically connected with a normally closed wiring terminal of the microswitch through a second wiring terminal, the other group of response units are electrically connected with a normally open wiring terminal of the microswitch through a third wiring terminal, and the response units are connected with the negative electrode of the power supply.
Preferably, the response units are arranged on a circuit board, two parallel printed copper wire circuits are arranged on the circuit board, and the two groups of response units are respectively arranged on the two printed copper wire circuits.
Preferably, an installation platform for fixing the microswitch is arranged on the measuring table, and the positioning block is arranged on the installation platform.
Preferably, the mounting platform is arranged in a manner of being capable of lifting in the vertical direction relative to the measuring table.
Preferably, a support platform is arranged on the measuring table, and the control rod is arranged on the support platform in a transversely movable manner.
Preferably, a mounting sleeve is arranged on the supporting platform, the control rod is slidably arranged in the mounting sleeve, one end of the stepped surface is arranged on the control rod, and extends outwards relative to the mounting sleeve and is used for contacting with a control rod of the micro switch, and the other end of the control rod extends outwards relative to the mounting sleeve and is used for controlling sliding of the control rod.
Preferably, a linear bearing is arranged in the mounting sleeve, and the control rod is mounted in the mounting sleeve through the linear bearing; and a return spring for returning the control rod is arranged between the mounting sleeve and the control rod.
Preferably, the utility model also comprises a control handle which is hinged; one end of the control rod is provided with the stepped surface, and the other end of the control rod is abutted to the control handle.
Preferably, the end of the lever is slidably urged against the control handle adjacent a hinge point of the control handle.
Compare earlier with prior art, the utility model discloses following beneficial effect has:
the utility model provides a micro-gap switch stroke measurement system, including the measuring bench, be provided with mounting platform on the measuring bench, in the testing process, the micro-gap switch that will await measuring is installed on mounting platform. The utility model discloses still be provided with electric power system, electric power system is including power, first binding post, second binding post and third binding post, through the circuit layout design to electric power system, can form two parallel circuit that receive micro-gap switch to switch on respectively. The utility model discloses still be provided with response unit, response unit respectively with foretell two circuit connection, when micro-gap switch state changes, can show through response unit directly perceived like this. The utility model discloses control system has still been set up, control system can carry out accurate control to micro-gap switch. Through the structure design, the utility model discloses an use can be in the stroke measurement that realizes micro-gap switch not carrying out the condition of structural change to micro-gap switch, the utility model discloses need not carry out the bonding wire operation to micro-gap switch, only need with micro-gap switch's three wiring end with the utility model discloses a three binding post corresponds pegs graft, just can realize the stroke measurement fast. Use the utility model discloses carry out the stroke measurement to micro-gap switch, micro-gap switch's three stroke section ability simultaneous measurement, the reading that need not see slide caliper rule and resistance appearance just can and whether this micro-gap switch of visual display is qualified, and it has solved traditional measuring method inefficiency problem. Additionally, the utility model discloses do not need the bonding wire, satisfied the requirement that the customer can't accept the micro-gap switch bonding wire. And, since the wire bonding operation is not required, the test efficiency is also improved. The utility model has the advantages of simple structure, convenient to use, it has solved among the prior art to the problem that measurement work volume is big, measurement of efficiency is low that micro-gap switch's traditional test method exists.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
FIG. 1 is a schematic diagram of a typical microswitch in the prior art;
the correspondence between the names of the components and the reference numerals in fig. 1 is:
normally closed contact a, normally open contact b and moving contact c.
Fig. 2 is a schematic structural view of a microswitch travel measurement system in an embodiment of the present invention;
fig. 3 is a schematic structural view of the connection between the electric power system and the micro switch of the present invention;
the correspondence between the component names and reference numerals in fig. 2 and 3 is:
the device comprises a control rod 1, a measuring table 2, a power supply 3, a response unit 4, a mounting platform 5, a supporting platform 6, a mounting sleeve 7 and a control handle 8.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 2 and fig. 3, wherein fig. 2 is a schematic structural diagram of a microswitch stroke measuring system according to an embodiment of the present invention; fig. 3 is a schematic diagram of the connection structure of the medium power system and the micro switch.
In general, a micro switch has three terminals, which are a common terminal, a normally closed terminal and a normally open terminal, the common terminal is connected to a moving contact inside the micro switch, the normally closed terminal is connected to a normally closed contact, the normally open terminal is connected to a normally open contact, the common terminal is connected to the positive pole of a power supply 3 outside the micro switch, and the normally closed terminal and the normally open terminal are connected to the negative pole of the power supply 3. Under the condition that the micro switch is not triggered, the common wiring terminal and the normally closed wiring terminal are connected with the normally closed contact through the movable contact arranged in the micro switch to realize the circuit conduction of the circuit, after the micro switch is triggered, the common wiring terminal and the normally open wiring terminal are connected with the normally open contact through the movable contact arranged in the micro switch to realize the circuit conduction of the circuit, and in the intermediate state (the intermediate state is very short), the micro switch does not realize the conduction of any circuit.
In order to measure (being the stroke measurement) the foretell three kinds of states of micro-gap switch, the utility model provides a micro-gap switch stroke measurement system, this micro-gap switch stroke measurement system's concrete structure as follows, include:
1. measuring table
The measuring table 2 is used for installing a microswitch to be measured, and a first wiring terminal used for being electrically connected with a public wiring terminal of the microswitch, a second wiring terminal used for being electrically connected with a normally closed wiring terminal of the microswitch and a third wiring terminal used for being electrically connected with a normally open wiring terminal of the microswitch are arranged on the measuring table 2.
The utility model discloses an in an embodiment, first binding post, second binding post and third binding post can carry out layout design and fixed the setting on measuring station 2 according to micro-gap switch's structure.
In another embodiment of the present invention, the first connection terminal, the second connection terminal, and the third connection terminal are mounted on the measuring table 2 by flexible connection, and have the following structures: each corresponding wiring terminal is connected with a wire for current circulation, the wire adopts a spiral line structure, and the wire is fixedly arranged on the measuring table 2. The installation mode of flexible connection is adopted, and the use requirements of micro switches of any types and different structures can be met.
Specifically, first binding post, second binding post and third binding post are for can with micro-gap switch's public wiring end, normally closed wiring end and normally open wiring end realize pegging graft complex structure (first binding post is connected with public wiring end, second binding post is connected with normally closed wiring end, third binding post is connected with normally open wiring end), first binding post, second binding post and third binding post's structure is the same basically, take first binding post as an example, it has the terminal shell, set up the sheetmetal in the terminal shell, insert to the terminal shell when public wiring end, the sheetmetal can contact and realize the electricity with public wiring end and be connected (the circuit switches on).
The measuring table 2 adopts the structure similar to the traditional table, and has a measuring plane, the utility model discloses set up the mounting platform 5 of a liftable on the measuring plane, micro-gap switch fixes on mounting platform 5 when testing. A height-adjusting screw rod is rotatably arranged on the measuring plane, and the mounting platform 5 is in threaded fit with the height-adjusting screw rod. The auxiliary screw or the limiting optical axis is matched with the heightening screw on the measuring plane, and the mounting platform 5 is limited by the auxiliary screw or the limiting optical axis, so that when the heightening screw is rotated (if the auxiliary screw is arranged, the auxiliary screw rotates simultaneously), the mounting platform 5 can perform lifting motion on the heightening screw.
On the measuring table 2 the utility model discloses still be provided with power 3, power 3's positive pole passes through the wire and is connected with first binding post, and power 3's negative pole passes through the wire and is connected with second binding post and third binding post. The utility model discloses in, be provided with the master switch between power 3 and the first binding post or between power 3 and second binding post and the third binding post.
2. Response unit
The responding unit 4 is an electronic component that can respond when energized, and the electronic component may be an LED lamp, a light emitting diode, or a buzzer, and is preferably an LED lamp or a light emitting diode.
The electronic elements are integrated on a circuit board, the electronic elements are provided with a plurality of groups and divided into two groups, two parallel circuits are arranged on the circuit board, and the two groups of electronic elements are respectively arranged on the two circuits of the circuit board. Wherein the circuit is a printed copper wire circuit, and the connecting pins of the electronic component are welded on the circuit of the circuit board. Two circuits arranged on the circuit board correspond to the first connecting terminal and the second connecting terminal and are respectively electrically connected with the first connecting terminal and the second connecting terminal.
3. Control system
The control system is used for controlling a control rod of the micro switch, so that the control rod can move in a segmented and fixed distance manner, and a movable contact in the micro switch can be controlled to enter and stably keep within three strokes (a first stroke L, a second stroke M and a third stroke N which are introduced in the background art).
Specifically, control system is including supporting platform 6, is provided with installation sleeve 7 on supporting platform 6, has set up control lever 1 slidable in installation sleeve 7, and the one end of control lever 1 is located the upside of installation platform 5 on vertical direction, is used for contacting with micro-gap switch's control lever, and the face that control lever 1 is used for contacting with micro-gap switch's control lever is the ladder face, and the ladder face can realize carrying out segmentation, the distance to micro-gap switch's control lever and push down.
The step surface is a three-level step surface, the first-level step surface is contacted with the control rod of the microswitch, and the control rod of the microswitch keeps a normal state (namely the movable contact is contacted with the normally closed contact); after the control rod 1 is moved transversely, the second-stage stepped surface is contacted with the control rod, and the vertical height of the second-stage stepped surface is lower than that of the first-stage stepped surface, so that the control rod of the microswitch moves downwards for a certain distance, and at the moment, a movable contact inside the microswitch is kept in a separation state with a normally closed contact and a normally open contact; after the control rod 1 is moved again to continue traversing, the third-stage stepped surface is contacted with the control rod, and the vertical height of the third-stage stepped surface is lower than that of the second-stage stepped surface, so that the control rod of the microswitch moves downwards for a distance, and at the moment, the movable contact inside the microswitch is contacted with the normally open contact.
The utility model discloses in, be provided with linear bearing in installing sleeve 7, control rod 1 passes through linear bearing and installs in installing sleeve 7, and it can guarantee that control rod 1 slides stably, steadily, smoothly.
In particular, a return spring is also provided between the mounting sleeve 7 and the control rod 1.
The control system is further provided with a control handle 8, the control handle 8 is hinged to the supporting platform 6, the control handle 8 is in contact with the other end (the end without the step surface) of the control rod 1, and the control rod 1 is pushed to move transversely by rotating the control handle 8. In the present embodiment, the contact point of the joystick 1 with the control handle 8 is close to the hinge point of the control handle 8, so that the moving distance of the contact point is small when the control handle 8 is rotated, which can improve the control accuracy of the lateral movement of the control lever.
Of course, the utility model discloses can also provide hydraulic system and realize the distance sideslip of control rod 1.
The utility model provides an among the micro-gap switch stroke measurement system, it is provided with mounting platform 5 including measurement station 2 on measurement station 2, in the testing process, will await measuring micro-gap switch installs on mounting platform 5. In order to improve the stability that micro-gap switch set up on mounting platform 5 to guarantee that measurement work goes on smoothly, the utility model discloses structure and size according to micro-gap switch are provided with the locating piece on mounting platform 5, and on micro-gap switch placed mounting platform 5, micro-gap switch can clamp between the locating piece.
The utility model discloses still be provided with electric power system, electric power system is including power 3, first binding post, second binding post and third binding post, through the circuit layout design to electric power system, can form two parallel circuit that receive micro-gap switch to switch on respectively.
The utility model discloses still be provided with response unit 4, response unit 4 respectively with foretell two circuit connection, when micro-gap switch state changes, can show through response unit 4 directly perceived like this.
The utility model discloses control system has still been set up, control system can carry out accurate control to micro-gap switch to make the inside movable contact of micro-gap switch carry out controlled motion, and can stably keep in the arbitrary state with normally open contact, with normally closed contact and with the three state of normally open contact and normally closed contact separation. Through the structure design, the utility model discloses an use can be in the stroke measurement that realizes micro-gap switch not carrying out the condition of structural change to micro-gap switch, the utility model discloses need not carry out the bonding wire operation to micro-gap switch, only need with micro-gap switch's three wiring end with the utility model discloses a three binding post corresponds pegs graft, just can realize the stroke measurement fast. Use the utility model discloses carry out the stroke measurement to micro-gap switch, micro-gap switch's three stroke section ability simultaneous measurement, the reading that need not see slide caliper rule and resistance appearance just can and whether this micro-gap switch of visual display is qualified, and it has solved traditional measuring method inefficiency problem. Additionally, the utility model discloses do not need the bonding wire, satisfied the requirement that the customer can't accept the micro-gap switch bonding wire. And, since the wire bonding operation is not required, the test efficiency is also improved. The utility model has the advantages of simple structure, convenient to use, it has solved among the prior art to the problem that measurement work volume is big, measurement of efficiency is low that micro-gap switch's traditional test method exists.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A microswitch travel measurement system comprising:
the control rod (1) is used for conducting fixed-distance segmented pressing on a control rod of the micro switch, a stepped surface is arranged at one end of the control rod and the lower side surface of the control rod, the stepped surface is a three-level stepped surface, and the control rod can move transversely;
the measuring table (2) is used for fixing the microswitch in the measuring process, and a positioning block is arranged on the measuring table;
the electric power system comprises a power supply (3) and a response unit (4), wherein a first wiring terminal which is electrically connected with a public wiring terminal of the microswitch is connected with the positive electrode of the power supply, the response unit is provided with a plurality of groups which are divided into two groups, the response units are arranged in parallel, one group of the response units are electrically connected with a normally closed wiring terminal of the microswitch through a second wiring terminal, the other group of the response units are electrically connected with a normally open wiring terminal of the microswitch through a third wiring terminal, and the response units are connected with the negative electrode of the power supply.
2. The microswitch travel measurement system of claim 1,
the response units are arranged on the circuit board, two parallel printed copper wire circuits are arranged on the circuit board, and the two groups of response units are respectively arranged on the two printed copper wire circuits.
3. The microswitch travel measurement system of claim 1,
and the measuring table is provided with an installation platform (5) for fixing the microswitch, and the positioning block is arranged on the installation platform.
4. The microswitch travel measurement system of claim 3,
the mounting platform is arranged in a lifting mode relative to the measuring table in the vertical direction.
5. The microswitch travel measurement system of claim 1,
a supporting platform (6) is arranged on the measuring table, and the control rod can be transversely movably arranged on the supporting platform.
6. The microswitch travel measurement system of claim 5,
the support platform is provided with a mounting sleeve (7), the control rod can be slidably arranged in the mounting sleeve, one end of the stepped surface is arranged on the control rod, the mounting sleeve outwards extends to be used for contacting with a control rod of the micro switch, and the other end of the control rod outwards extends to be used for controlling the sliding of the control rod.
7. The microswitch travel measurement system of claim 6,
a linear bearing is arranged in the installation sleeve, and the control rod is installed in the installation sleeve through the linear bearing;
and a return spring for returning the control rod is arranged between the mounting sleeve and the control rod.
8. Microswitch travel measurement system according to any one of claims 1 to 7,
the device also comprises a control handle (8), and the control handle is hinged;
one end of the control rod is provided with the stepped surface, and the other end of the control rod is abutted to the control handle.
9. The microswitch travel measurement system of claim 8,
the end part of the control rod is close to the hinged point of the control handle and is in sliding butt joint with the control handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203939.2U CN210626620U (en) | 2019-07-29 | 2019-07-29 | Micro-gap switch stroke measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921203939.2U CN210626620U (en) | 2019-07-29 | 2019-07-29 | Micro-gap switch stroke measurement system |
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| CN210626620U true CN210626620U (en) | 2020-05-26 |
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| CN201921203939.2U Active CN210626620U (en) | 2019-07-29 | 2019-07-29 | Micro-gap switch stroke measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275106A (en) * | 2019-07-29 | 2019-09-24 | 中壹发展八五零电子有限公司 | Microswitch stroke measuring system |
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2019
- 2019-07-29 CN CN201921203939.2U patent/CN210626620U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275106A (en) * | 2019-07-29 | 2019-09-24 | 中壹发展八五零电子有限公司 | Microswitch stroke measuring system |
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