CN208736344U - A kind of flatness inspection devices - Google Patents
A kind of flatness inspection devices Download PDFInfo
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- CN208736344U CN208736344U CN201821670283.0U CN201821670283U CN208736344U CN 208736344 U CN208736344 U CN 208736344U CN 201821670283 U CN201821670283 U CN 201821670283U CN 208736344 U CN208736344 U CN 208736344U
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- Prior art keywords
- measurement
- inspection devices
- flatness inspection
- rack
- moving portion
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- 238000007689 inspection Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 81
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a kind of flatness inspection devices, is related to liquid crystal module field of measuring technique.The flatness inspection devices includes rack, and workpiece for measurement is placed in rack, the flatness inspection devices further include: moving portion and the removable connection of rack, moving portion are conductive material and are internally provided with connecting hole；Measurement head assembly includes contact head body and connector interconnected, and connector is that conductive material and being threaded through in connecting hole cooperates with connecting hole, and contact head body is insulating materials and the surface for being connected to workpiece for measurement；Control device is electrically connected to form test loop with moving portion and connector respectively.The utility model proposes flatness inspection devices, high degree of automation, measurement effect is accurate, easy to operate.
Description
Technical field
The utility model relates to liquid crystal module field of measuring technique more particularly to a kind of flatness inspection devices.
Background technique
In liquid crystal module field, flatness or angularity to liquid crystal display panel require very high.If LCD display
The flatness of plate does not reach requirement, and will lead to the stagnation of subsequent assembly and process, and whole production line is stopped work.Therefore, it is necessary to
The flatness of liquid crystal display panel is carried out effectively measuring.
In the prior art, it generallys use micrometer to measure the thickness of liquid crystal display panel, needs manual operation, essence
Degree is not high, and measurement efficiency is low.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of flatness inspection devices, high degree of automation, measurement effect standard
Really, easy to operate.
The utility model uses following technical scheme:
A kind of flatness inspection devices, including rack, workpiece for measurement are placed in rack, which also wraps
It includes:
The removable connection of moving portion, moving portion and rack, moving portion are conductive material and are internally provided with connecting hole；
Head assembly is measured, measurement head assembly includes contact head body and connector interconnected, and connector is conductive material
And be threaded through in connecting hole and cooperate with connecting hole, contact head body is insulating materials and the surface for being connected to workpiece for measurement；
Control device, control device are electrically connected to form test loop with moving portion and connector respectively.
As a kind of preferred embodiment of the utility model, moving portion includes that first movement part interconnected and second are mobile
The removable connection of part, the second moving member and rack, connecting hole are set to first movement part, and the second moving member is electrically connected with control device
It connects.
Further include insulating boot as a kind of preferred embodiment of the utility model, be located on the second moving member, and with
The connection of one moving member.
As a kind of preferred embodiment of the utility model, the material of first movement part and connector is semiconductor, and second moves
The material of moving part is metal.
As a kind of preferred embodiment of the utility model, measuring head assembly further includes the first connection frame, the first connection frame
One end is connect with contact head body, and the other end is connect with connector.
As a kind of preferred embodiment of the utility model, contact head body is idler wheel or ball.
As a kind of preferred embodiment of the utility model, it is provided with sliding rail in rack, sliding block, moving portion are provided on sliding rail
It is fixedly connected with a slide block.
As a kind of preferred embodiment of the utility model, sliding rail is arranged in parallel with two, every along the length direction of rack
At least one sliding block is correspondingly arranged on sliding rail, moving portion is fixedly connected with the sliding block on two sliding rails by the second connection frame.
It further include the first driving assembly being set in rack as a kind of preferred embodiment of the utility model, first drives
Dynamic component can push moving portion to move along sliding rail.
It further include the second driving assembly being set in rack as a kind of preferred embodiment of the utility model, second drives
Moving part can drive workpiece for measurement to move along the direction perpendicular to sliding rail.
The utility model has the following beneficial effects:
The utility model proposes a kind of flatness inspection devices, control device is electrically connected with moving portion and connector respectively
Test electrical circuit to be formed, control device provides stable voltage, moving portion drive the contact head body of measurement head assembly along to
It surveys in the surface moving process of workpiece, raised or sunken place's energy band follower link on workpiece for measurement is in connecting hole along work to be measured
The movement of part thickness direction, so that the contact area of connector and connecting hole side wall changes, due to connector and moving portion
It is conductive material, the contact area of connector and connecting hole side wall, which changes, causes the resistance tested in electrical circuit to become
Change, control device can obtain the variation of electric current according to the variation of voltage and resistance, at the signal by curent change
The case where managing, obtaining the raised or sunken place on workpiece for measurement, and then realize the measurement to planeness of workpiece to be measured, automation
Degree is high, and measurement effect is accurate, easy to operate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flatness inspection devices provided by the utility model；
Fig. 2 is a kind of structure of measurement head assembly and moving portion cooperation in flatness inspection devices provided by the utility model
Schematic diagram；
Fig. 3 is the knot of another measurement head assembly and moving portion cooperation in flatness inspection devices provided by the utility model
Structure schematic diagram；
Fig. 4 is that flatness inspection devices provided by the utility model is respectively at tri- kinds of states of A, B, C in measurement process
When structural schematic diagram；
Fig. 5 is the corresponding single line measurement current analog curve of flatness inspection devices measurement result provided by the utility model
Figure；
Fig. 6 is in flatness inspection devices measurement result provided by the utility model according to multi-thread measurement current analog curve
The simulation plan view of obtained workpiece for measurement.
In figure:
1- rack；
2- moving portion；21- first movement part；The second moving member of 22-；The second connection frame of 23-；
3- measures head assembly；31- contact head body；32- connector；The first connection frame of 33-；
4- control device；
5- sliding rail；
6- insulating boot；
100- workpiece for measurement.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is the structural schematic diagram of flatness inspection devices provided by the utility model, as shown in Figure 1, the device is main
It include: rack 1, moving portion 2, measurement head assembly 3 and control device 4.Wherein, rack 1 is supporting element, and workpiece for measurement 100 accommodates
In rack 1.Moving portion 2 and the removable connection of rack 1, and moving portion 2 is conductive material and is internally provided with connecting hole.Measurement
Head assembly 3 includes contact head body 31 interconnected and connector 32, wherein connector 32 is conductive material and is threaded through movement
In the connecting hole in portion 2, contact head body 31 is insulating materials and the surface for being connected to workpiece for measurement 100.I.e. when moving portion 2 is in rack
When moving on 1, contact head body 31 can be driven to move along the surface of workpiece for measurement 100.Further, control device 4 provides stabilization
Voltage, and be electrically connected to form test electrical circuit with moving portion 2 and connector 32 respectively.In this test electrical circuit, connect
Contact body 31 is that insulating materials impacts test electrical circuit so resistance can not be formed；Voltage is provided by control device 4,
Resistance is formed by moving portion 2 and connector 32, due to control device 4 provide voltage be it is stable, test electrical circuit in
Curent change is determined by the resistance value of resistance.
The main measurement process of flatness inspection devices provided by the utility model are as follows: the movement of moving portion 2 drives measuring head
The contact head body 31 of component 3 is moved along the surface of workpiece for measurement 100, and the raised or sunken place on workpiece for measurement 100 can the company of drive
Fitting 32 moves in connecting hole along 100 thickness direction of workpiece for measurement, sends out the contact area of connector 32 and connecting hole side wall
The variation of the contact area of changing, connector 32 and connecting hole side wall leads to the variation of the resistance value of resistance, and then to test electricity
Current value in circuit has an impact, and in the utility model, contact area is inversely proportional with resistance value, under stable voltage status,
Contact area is directly proportional to electric current, and the thickness of workpiece for measurement 100 is directly proportional to current value, and current value is from the electricity in control device 4
It being obtained in flow table, ammeter can mark scale, so as to make 100 thickness of workpiece for measurement, by analyzing the changing value of electric current,
And converted as data, it will be able to obtain the flatness data of workpiece for measurement 100, it should be noted that this is practical new
In type, resistance=voltage/current or resistance=coefficient/contact area, wherein contact area=connector cross section × to be measured
Thickness of workpiece.
Specifically, as shown in fig. 1, in order to realize movement of the moving portion 2 in rack 1, sliding rail is provided in rack 1
5, sliding block (not shown) is provided on sliding rail 5, and moving portion 2 is fixedly connected with a slide block, i.e., moving portion 2 is in the opposite of rack 1
Movement is realized with sliding rail and sliding block.The cooperation of sliding rail and sliding block, structure is simple, easy to operate, it is easy to accomplish.This is practical
The novel specific implementation for not limiting moving portion 2 and 1 relative motion of rack herein, it is preferred to use the sliding rail in the present embodiment
And slide block structure.It is further preferred that the length direction along rack 1 is arranged in parallel with two sliding rails 5, corresponded on every sliding rail 5
It is provided at least one sliding block, moving portion 2 is fixedly connected with a slide block.Correspondence on two sliding rails 5 and every sliding rail 5 is arranged to set
It is equipped at least one sliding block, so that entire motion process is more steady, the precision of measurement is higher.Meanwhile moving portion 2 is in sliding rail 5
On back and forth movement can also be arranged to automatically control, be preferably provided with the first driving assembly in the present embodiment and (do not show in figure
Out), the first driving assembly is fixed in rack 1, and the first driving assembly can push moving portion 2 to move along sliding rail 5.First driving group
Part can select the fit form of motor and screw rod, also can be set to be in line and move mould group etc., belong to the conventional skill of this field
Art, details are not described herein.
As shown in Figure 1, moving portion 2 includes first movement part 21, the second moving member 22 and the second connection frame 23.Specifically,
First movement part 21 and the second moving member 22 are connected with each other, and the second moving member 22 is fixedly connected with a slide block, the second moving member 22 with
The electrical connection of control device 4 (in Fig. 1 shown in conducting wire connection), the second connection frame 23 is fixedly connected with a slide block.Further, it first moves
Connecting hole is provided on moving part 21, connecting hole can be set to through-hole, and the second moving member 22 is threaded through the top of through-hole and is consolidated
Fixed connection；Blind hole also can be set into connecting hole, and the second moving member 22 is directly fixedly connected with the top of first movement part 21.
Preferably, on the second moving member 22, it is preferably provide with insulating boot 6, insulating boot 6 can prevent external situations such as touching mobile to second
The interference of part 22.
Fig. 2 is a kind of structure of measurement head assembly and moving portion cooperation in flatness inspection devices provided by the utility model
Schematic diagram, in Fig. 2, measurement head assembly 3 includes contact head body 31, connector 32 and the first connection frame 33, and wherein connector 32 is worn
It is located in the connecting hole being arranged on first movement part 21, and can move up and down along connecting hole, connector 32 is interior with connecting hole
Wall contact.One end of first connection frame 33 is connect with contact head body 31, and the other end is connect with connector 32.In Fig. 1, the first connection
Frame 33 is in frame structure, including bottom support and the connector at bottom support both ends is connected to, in the contact head of roller shape
Body 31 is rotatably set to bottom support using bottom support as axis, and two are connected to the connector at bottom support both ends
It is connected to connector 32.
Since contact head body 31 will be connected to the surface of workpiece for measurement 100 and movement, and the precision on 100 surface of workpiece for measurement
It is required that very high, thus preferably contact head body 31 for can rolling member, i.e. contact head body 31 and the friction on the surface of workpiece for measurement 100 be excellent
It is selected as rolling friction, rather than sliding friction, prevent sliding friction from hurting the surface of workpiece for measurement 100.Setting first connects thus
The purpose for connecing frame 33 is to realize the rotation of contact head body 31, and contact head body 31 can select the roller structure in Fig. 2, can also be excellent
Hank the spherical ball structure in Fig. 3.Fig. 3 is another measurement head assembly in flatness inspection devices provided by the utility model
With the structural schematic diagram of moving portion cooperation, as shown in figure 3, contact head body 31 is spherical ball structure, the first connection frame 33 is arranged
At the structure that can envelope spherical ball, i.e. multi-directional ball pedestal, so that contact head body 31 and the first connection frame 33 form multi-directional ball
Structure.The effect of first connection frame 33 is that contact head body 31 is preferably rotated, and rolling friction is realized, in the present embodiment
In do not limit the specific structure of contact head body 31, also do not limit the specific structure for the first connection frame 33 being attached thereto, preferably
Above-mentioned roller or spherical ball structure.
Further, in the present embodiment, since the accuracy of measurement data depends primarily on the size of change in resistance.Half
The resistance value of conductor is larger, and change in resistance is more obvious, it is therefore preferable that the material of first movement part 21 and connector 32 is arranged
For semiconductor material, such as graphite, the material of the second moving member 22 is metal.
Fig. 4 is that flatness inspection devices provided by the utility model is respectively at tri- kinds of states of A, B, C in measurement process
When structural schematic diagram, tri- kinds of states of A, B, C respectively correspond workpiece for measurement 100 have recess, level and have protrusion three kinds of situations.
In Fig. 4, using at B state as reference, be illustrated at A, when at measuring device at A, due to moving portion 2 to
It is motionless on survey 100 thickness direction of workpiece, and it is connected to the measurement head assembly 3 on 100 surface of workpiece for measurement, it can be due to recess herein
And relative movement portion 2 moves down, and can move down in the connecting hole that connector 32 is arranged on first movement part 21 at this time, makes
It obtains connector 32 and the contact area of connecting hole inner wall changes, so that the curent change in circuit.
Fig. 5 is the corresponding single line measurement current analog curve of flatness inspection devices measurement result provided by the utility model
Figure, as shown in figure 5, in Fig. 4 tri- kinds of states of A, B, C respectively correspond workpiece for measurement 100 have recess, level and have protrusion situation,
The variation of current analog curve is converted into Fig. 5.That is, if the single line measurement current analog curve graph shown in Fig. 5 is
Straight line, once the surface of the workpiece for measurement 100 of corresponding position was horizontal, met planarity requirements；If the single line shown in Fig. 5
Measurement current analog curve graph is that straight line has fluctuation upward or downward, i.e., the surface of the workpiece for measurement 100 at fluctuation has centainly
Deformation, the size of fluctuation correspond at this deform size.
Further, complex chart 1-4 it can be concluded that, measurement head assembly 3 and the contact on 100 surface of workpiece for measurement are approximation line
(corresponding contact head body 31 is roller knot for contact (contact head body 31 is spherical ball structure in corresponding diagram 3) or lesser face contact
Structure), therefore, obtained current analog curve graph is that single line measures current analog curve graph.In order to measure entire workpiece for measurement 100
Flatness, need to handle multiple single lines measurement current analog curve graph, form multi-thread measurement current analog curve graph.
For this purpose, it is also provided with the second driving assembly, the second actuator can drive workpiece for measurement 100 along perpendicular to sliding rail 5
Direction it is mobile, therefore under the cooperation of the first driving assembly and the second driving assembly, which be can be realized
The measurement of planeness is carried out to entire 100 surface of workpiece for measurement.Meanwhile second actuator can be selected as with the first actuator structure
The conventional arrangement of this field, as long as being able to achieve the two direction of motion vertically.
In actual use it is to be understood that sliding rail 5 of the moving portion 2 in rack 1 moves once, one can be obtained
It opens the single line in Fig. 5 and measures current analog curve graph, the second actuator drives workpiece for measurement 100 to the direction perpendicular to sliding rail 5
Mobile, sliding rail 5 of the moving portion 2 again in rack 1 moves once, can obtain the single line measurement current analog in a Fig. 5 again
Curve graph, move in circles the above process, it will be able to obtain multiple single lines measurement current analog curve graph.
Fig. 6 is in flatness inspection devices measurement result provided by the utility model according to multi-thread measurement current analog curve
The simulation plan view of obtained workpiece for measurement, i.e. Fig. 6, which is that multiple single lines measurement current analog curve graph combines and treated, to be put down
Face figure, as can be seen from Fig. 6, entire workpiece for measurement 100 have irrational mix at two, at the recess at A and C in corresponding diagram 4
Bulge-structure.From the area of the bulge-structure at the sunk structure and C that can be shown in Fig. 6 from 100 surface A of workpiece for measurement
And position, meanwhile, in Fig. 5 the size of curent change is capable of the degree of respective protrusions and recess, judges workpiece for measurement 100 with this
Whether planarity requirements are met.
The size of idler wheel or ball in the present embodiment can according to the actual size and required precision of workpiece for measurement 100
Dismounting and change.
In conclusion high degree of automation, measurement effect is accurate the utility model proposes a kind of flatness inspection devices,
It is easy to operate.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment here, is able to carry out for a person skilled in the art various apparent
Variation is readjusted and is substituted without departing from the protection scope of the utility model.Therefore, although by above embodiments to this
Utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from this reality
It can also include more other equivalent embodiments in the case where with novel design, and the scope of the utility model is by appended power
Sharp claimed range determines.
Claims (10)
1. a kind of flatness inspection devices, including rack (1), workpiece for measurement (100) is placed in the rack (1), and feature exists
In the flatness inspection devices further include:
Moving portion (2), the removable connection in the moving portion (2) and the rack (1), the moving portion (2) be conductive material and
It is internally provided with connecting hole；
It measures head assembly (3), the measurement head assembly (3) includes contact head body (31) interconnected and connector (32), institute
Stating connector (32) is that conductive material and being threaded through in the connecting hole cooperates with the connecting hole, and the contact head body (31) is
Insulating materials and the surface for being connected to the workpiece for measurement (100)；And
Control device (4), the control device (4) are electrically connected respectively with the moving portion (2) and the connector (32) with shape
At test loop.
2. flatness inspection devices according to claim 1, which is characterized in that the moving portion (2) includes being connected with each other
First movement part (21) and the second moving member (22), the removable connection in second moving member (22) and the rack (1), institute
It states connecting hole and is set to the first movement part (21), second moving member (22) is electrically connected with the control device (4).
3. flatness inspection devices according to claim 2, which is characterized in that further include insulating boot (6), be located at institute
It states on the second moving member (22), and is connect with the first movement part (21).
4. flatness inspection devices according to claim 2, which is characterized in that the first movement part (21) and the company
The material of fitting (32) is semiconductor, and the material of second moving member (22) is metal.
5. flatness inspection devices according to claim 1, which is characterized in that the measurement head assembly (3) further includes
One connection frame (33), one end of first connection frame (33) are connect with the contact head body (31), the other end and the connection
Part (32) connection.
6. flatness inspection devices according to claim 1, which is characterized in that the contact head body (31) is idler wheel or rolling
Pearl.
7. flatness inspection devices according to claim 1, which is characterized in that be provided with sliding rail on the rack (1)
(5), sliding is provided with sliding block on the sliding rail (5), and the moving portion (2) is fixedly connected with the sliding block.
8. flatness inspection devices according to claim 7, which is characterized in that the sliding rail (5) is along the rack (1)
Length direction is arranged in parallel with two, is correspondingly arranged at least one described sliding block, the moving portion on every sliding rail (5)
(2) it is fixedly connected with the sliding block on two sliding rails (5) by the second connection frame (23).
9. flatness inspection devices according to claim 7, which is characterized in that further include being set on the rack (1)
The first driving assembly, first driving assembly can push the moving portion (2) mobile along the sliding rail (5).
10. flatness inspection devices according to claim 7, which is characterized in that further include being set on the rack (1)
The second driving assembly, second actuator can drive the workpiece for measurement (100) along perpendicular to the sliding rail (5) direction
It is mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670283.0U CN208736344U (en) | 2018-10-15 | 2018-10-15 | A kind of flatness inspection devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821670283.0U CN208736344U (en) | 2018-10-15 | 2018-10-15 | A kind of flatness inspection devices |
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| Publication Number | Publication Date |
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| CN208736344U true CN208736344U (en) | 2019-04-12 |
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ID=66035311
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| CN201821670283.0U Active CN208736344U (en) | 2018-10-15 | 2018-10-15 | A kind of flatness inspection devices |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532367A (en) * | 2020-04-17 | 2021-10-22 | 北京福田康明斯发动机有限公司 | Flatness measuring device and method |
-
2018
- 2018-10-15 CN CN201821670283.0U patent/CN208736344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532367A (en) * | 2020-04-17 | 2021-10-22 | 北京福田康明斯发动机有限公司 | Flatness measuring device and method |
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Address after: 215301 No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301 No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |