CN108828808B - Double-cam pre-pressing device - Google Patents
Double-cam pre-pressing device Download PDFInfo
- Publication number
- CN108828808B CN108828808B CN201810936958.XA CN201810936958A CN108828808B CN 108828808 B CN108828808 B CN 108828808B CN 201810936958 A CN201810936958 A CN 201810936958A CN 108828808 B CN108828808 B CN 108828808B
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- cam
- pressing plate
- base
- probe assembly
- handle
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- 238000003825 pressing Methods 0.000 title claims abstract description 78
- 239000000523 sample Substances 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000005056 compaction Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 6
- 238000002788 crimping Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Tests Of Electronic Circuits (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention relates to the field of liquid crystal panel testing, in particular to a double-cam pre-pressing device. The double-cam pre-pressing device comprises a base, a pressing plate, a probe assembly and a cam pressing mechanism, wherein the pressing plate is arranged in the base, the probe assembly is arranged on the outer side of a back plate of the base, a first cam and a second cam of the cam pressing mechanism are sequentially contacted with the pressing plate, so that the probe assembly is in compression joint with a product to be tested, and the double-cam pre-pressing device is simple in structure and convenient to use; the cam pressing mechanism adopts a double-cam mode, the first cam is contacted with the pressing plate to form pre-pressing, the camera can clearly and accurately observe whether the product positioning and the probe assembly positioning are coincident, the accuracy of crimping is guaranteed, after the product positioning and the probe assembly positioning are coincident, the second cam is contacted with the pressing plate, and crimping is completed between the probe assembly and a product to be tested. The surfaces of the first cam and the second cam, which are contacted with the pressing plate, are all plane surfaces, so that the self-locking can be realized when the first cam and the second cam are completely contacted with the pressing plate (namely, the surfaces are contacted).
Description
Technical Field
The invention relates to the field of liquid crystal panel testing, in particular to a double-cam pre-pressing device.
Background
With the rapid development of flat panel displays and the improvement of living standard of people, the liquid crystal display is increasingly used in daily life of people. With the recent development of the assembly of curved screens, flexible screens have also been rapidly developed as an essential product, and corresponding detection devices have also been used.
The existing liquid crystal panel crimping test device is complex in structure and inconvenient to use; the pressure elbow clamp or the single cam mechanism and other simple mechanical structures are adopted, so that in the repeated pressure welding process, accurate pressure welding of the probe assembly and the product to be tested is difficult to ensure, and the detection efficiency is low.
Disclosure of Invention
In order to solve the problems, the invention provides the double-cam pre-pressing device which is simple in structure and high in screen-pointing success rate.
The technical scheme adopted by the invention is as follows: the utility model provides a double cam pre-compaction device which characterized in that: the device comprises a base, a pressing plate arranged in the base, a probe assembly used for being in press connection with a product to be tested and a cam pressing mechanism used for driving the pressing plate to move, wherein the probe assembly is arranged on the outer side of the base and is fixedly connected with the pressing plate, a spring is arranged between the bottom of the pressing plate and the base, and the cam pressing mechanism is arranged above the pressing plate; the cam compressing mechanism rotates, a first cam and a second cam on the cam compressing mechanism are sequentially contacted with the pressing plate, and the pressing plate drives the probe assembly to be pressed and connected with a product to be tested.
Preferably, the cam compressing mechanism comprises a rotating shaft, a first cam, a second cam and a handle, wherein the first cam and the second cam are arranged on the rotating shaft, the handle is arranged at one end of the rotating shaft, the rotating shaft penetrates through side plates at two sides of the base, and one end of the rotating shaft extends out of the side plates and is connected with the handle; the first cam and the second cam are arranged between the side plates on two sides of the bottom plate, and the rotation radius of the first cam is smaller than that of the second cam.
Further, the surfaces of the first cam and the second cam, which are in contact with the pressing plate, are plane surfaces.
Further, limiting blocks are fixedly arranged at two ends of the rotating shaft, and the limiting blocks at two ends are propped against the inner sides of the side plates at two sides of the base.
Furthermore, a limit rod is arranged on the side plate at one side of the handle, and when the plane of the second cam is in complete contact with the pressing plate, the handle abuts against the limit rod to prevent overpressure.
Furthermore, the handle is perpendicular to the rotating shaft, one end of the rotating shaft is inserted into the handle, and the handle is locked by a locking screw on the end face of the handle.
Preferably, the probe assembly is arranged on the outer side of the backboard of the base, a sliding rail is arranged on the backboard, and a sliding block matched with the sliding rail is fixed on the probe assembly.
Preferably, a PCB signal rotating plate is fixedly arranged on a top plate of the base.
The beneficial effects obtained by the invention are as follows: the pressing plate is arranged in the base, the probe assembly is arranged on the outer side of the base back plate, the first cam and the second cam of the cam pressing mechanism are sequentially contacted with the pressing plate, so that the probe assembly is in press connection with a product to be tested, and the pressing plate is simple in structure and convenient to use; the cam pressing mechanism adopts a double-cam mode, the first cam is contacted with the pressing plate to form pre-pressing, the camera can clearly and accurately observe whether the product positioning and the probe assembly positioning are coincident, the accuracy of crimping is guaranteed, after the product positioning and the probe assembly positioning are coincident, the second cam is contacted with the pressing plate, and crimping is completed between the probe assembly and a product to be tested. The surfaces of the first cam and the second cam, which are contacted with the pressing plate, are plane surfaces, so that when the first cam and the second cam are completely contacted with the pressing plate (namely, the surfaces are contacted), self-locking can be realized; limiting blocks are fixedly arranged at two ends of the rotating shaft, so that the axial movement of the rotating shaft is prevented; a limit rod is arranged on a side plate close to one side of the handle to prevent overpressure; the handle is perpendicular to the rotating shaft, one end of the rotating shaft is inserted into the handle, the handle is locked through the locking screw on the end face of the handle, and the overpressure position of the handle can be adjusted by loosening the locking screw.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure with the cam compression mechanism removed;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a sectional view B-B of FIG. 3;
fig. 7 is a schematic view of the cam pressing mechanism.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
As shown in fig. 1-6, a double-cam pre-pressing device comprises a base 1, a pressing plate 2, a probe assembly 3 and a cam pressing mechanism, wherein the base 1 comprises a bottom plate 11, two side plates 12, a top plate 13 and a back plate 14, the middle of the bottom plate 11 is hollowed out, the whole weight of the base 1 can be lightened, two supporting plates for supporting the pressing plate 2 are arranged on the bottom plate 11, the two side plates 12 are respectively arranged on two sides of the bottom plate 11, the top plate 13 is arranged on the top of the two side plates 12, and the bottom plate 11, the two side plates 12, the top plate 13 and the back plate 14 are enclosed into a box-shaped structure; the pressing plate 2 is parallel to the bottom plate 11 and is arranged in the base 1, the pressing plate 2 passes through the back plate 14 and is fixedly connected with the probe assembly 3, the probe assembly 3 is arranged on the outer side surface of the back plate 14, the guide rail 81 is arranged on the outer side surface of the back plate 14, and the sliding block 82 matched with the guide rail 81 is fixedly arranged on the probe assembly 3; the cam compressing mechanism is arranged above the pressing plate 2 and fixed on the side plate 12, the rotating shaft 41 of the cam compressing mechanism rotates, the first cam 42 and the second cam 43 of the cam compressing mechanism are sequentially contacted with the pressing plate 2, and the probe assembly 3 is further driven to move downwards, so that prepressing and crimping actions are realized. A spring 21 is arranged between the bottom of the pressing plate 2 and the bottom plate 11 of the base 1, the upper end of the spring 21 is propped against the bottom of the pressing plate 2, the lower end of the spring 21 is arranged on the supporting plate of the bottom plate 11, the spring 21 is compressed step by step in the compression joint process, and after compression joint is completed, return is realized through the spring 21.
As shown in fig. 7, in the present embodiment, the cam pressing mechanism includes a rotating shaft 41, a first cam 42, a second cam 43 and a handle 5, wherein both ends of the rotating shaft 41 respectively pass through the side plates 12 on both sides, one end of the rotating shaft extends out of the side plate 12 on one side to be connected with the handle 5, the first cam 42 and the second cam 43 are disposed between the side plates 12 on both sides, and the rotation radius of the first cam 42 is smaller than that of the second cam 43. The handle 5 drives the rotating shaft 41 to rotate, the first cam 42 is firstly contacted with the pressing plate 2 to drive the probe assembly 3 to move downwards, so that prepressing is formed; the rotation shaft 41 continues to rotate, the first cam 42 is separated from the pressing plate 2, and the second cam 43 is contacted with the pressing plate 2, so that the probe assembly 3 moves downwards further, and the probe assembly 3 and a product to be tested finish the pressing connection action because the rotation radius of the second cam 43 is larger than that of the first cam 42.
In this embodiment, the surfaces of the first cam 42 and the second cam 43 contacting the pressing plate 2 are all plane, and when the first cam 42 and the second cam 43 completely contact the pressing plate 2, the surfaces are in surface contact, so that self-locking of the cam pressing mechanism can be effectively realized.
Limiting blocks 44 are fixedly arranged at two ends of the rotating shaft 41, the limiting blocks 44 at two ends respectively lean against the inner sides of the side plates 12 at two sides of the base 1, the axial movement of the rotating shaft 41 is limited, the limiting blocks 44 rotate along with the rotating shaft 41, the limiting blocks 44 are of an open U-shaped structure, locking screws are arranged at the U-shaped openings, and the positions of the limiting blocks 44 on the rotating shaft 41 can be adjusted by loosening the locking screws.
The handle 5 is arranged vertically to the rotating shaft 41, one end of the rotating shaft 41 is inserted into the handle 5, an adjusting hole 51 is formed in the end face of the end, connected with the rotating shaft 41, of the handle 5, and a locking screw is screwed into the adjusting hole 51 to fix the rotating shaft 41 and the handle 5 together; the side plate 12 on one side close to the handle 5 is provided with a limiting rod 6, and when the plane of the second cam 43 is in full contact with the pressing plate 2, the handle 5 abuts against the limiting rod 6 to prevent overpressure. The locking screw is loosened, the handle 5 is rotated, the rotating shaft 41 cannot rotate together at the moment, after the handle 5 rotates to a proper position, the locking screw is locked, and the rotating angle of the handle 5 can be adjusted, namely, the overpressure position of the second cam 43 is adjusted.
The PCB signal rotating plate 7 is fixedly arranged on the top plate 13 of the base 1, so that signal conversion and transmission are realized.
Firstly, a product is manually placed on a carrier in a centering way, a handle 5 is rotated, a first cam 42 contacts a pressing plate 2, and the first cam 42 can well contact the pressing plate 2 because the contact surface of the first cam 42 and the pressing plate 2 is a plane, and a loosening hand cannot be bounced (namely self-locking), at the moment, a probe assembly 3 is a bit away from a product test point, but is not far away, whether product positioning and probe assembly positioning coincide or not is observed through a camera, and the product can be loosened, and alignment adjustment (left, right, up, down and rotation adjustment on the product) can be carried out until the product positioning and the probe assembly positioning completely coincide; continuing to rotate the handle 5, enabling the second cam 43 to start to contact the pressing plate 2, enabling the probe assembly 3 to be just in contact with a product test point at the moment, conducting a signal conduction test, enabling the handle 5 to be just in contact with the limiting rod 6 after the plane of the second cam 43 is completely in contact with the pressing plate 2, forming second self-locking at the moment, and enabling hands to be loosened to perform other operations; after this is completed, the handle 5 is rotated reversely, and the pressing plate 2 returns under the action of the spring 21.
The foregoing has shown and described the basic principles and main structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a double cam pre-compaction device which characterized in that: the device comprises a base (1), a pressing plate (2) arranged in the base (1), a probe assembly (3) for being in press connection with a product to be tested and a cam pressing mechanism for driving the pressing plate (2) to move, wherein the probe assembly (3) is arranged on the outer side of the base (1), the probe assembly (3) is fixedly connected with the pressing plate (2), a spring (21) is arranged between the bottom of the pressing plate (2) and the base (1), and the cam pressing mechanism is arranged above the pressing plate (2); the cam pressing mechanism rotates, a first cam (42) and a second cam (43) on the cam pressing mechanism are sequentially contacted with the pressing plate (2), and the pressing plate (2) drives the probe assembly (3) to press the product to be tested; the cam compressing mechanism comprises a rotating shaft (41), a first cam (42) and a second cam (43) which are arranged on the rotating shaft (41), and a handle (5) which is arranged at one end of the rotating shaft (41), wherein the rotating shaft (41) penetrates through side plates (12) at two sides of the base (1), and one end of the rotating shaft extends out of the side plates (12) to be connected with the handle (5); the first cam (42) and the second cam (43) are arranged between the side plates (12) on two sides of the base (1), and the rotation radius of the first cam (42) is smaller than that of the second cam (43).
2. The dual cam pre-compression device of claim 1, wherein: the surfaces of the first cam (42) and the second cam (43) which are contacted with the pressing plate (2) are plane surfaces.
3. The dual cam pre-compression device of claim 1, wherein: limiting blocks (44) are fixedly arranged at two ends of the rotating shaft (41), and the limiting blocks (44) at two ends are propped against the inner sides of the side plates (12) at two sides of the base (1).
4. The dual cam pre-compression device of claim 2, wherein: and a limit rod (6) is arranged on the side plate (12) at one side of the handle (5), and when the plane of the second cam (43) is completely contacted with the pressing plate (2), the handle (5) abuts against the limit rod (6) to prevent overpressure.
5. The dual cam pre-compression device of claim 4, wherein: the handle (5) is perpendicular to the rotating shaft (41), one end of the rotating shaft (41) is inserted into the handle (5), and the handle is locked by a locking screw on the end face of the handle (5).
6. The dual cam pre-compression device of claim 1, wherein: the probe assembly (3) is arranged on the outer side of a back plate (14) of the base (1), a sliding rail (81) is arranged on the back plate (14), and a sliding block (82) matched with the sliding rail (81) is fixed on the probe assembly (3).
7. The dual cam pre-compression device of claim 1, wherein: a PCB signal rotating plate (7) is fixedly arranged on a top plate (13) of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936958.XA CN108828808B (en) | 2018-08-16 | 2018-08-16 | Double-cam pre-pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936958.XA CN108828808B (en) | 2018-08-16 | 2018-08-16 | Double-cam pre-pressing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108828808A CN108828808A (en) | 2018-11-16 |
| CN108828808B true CN108828808B (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810936958.XA Active CN108828808B (en) | 2018-08-16 | 2018-08-16 | Double-cam pre-pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108828808B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111694175B (en) * | 2020-06-30 | 2022-06-17 | 苏州精濑光电有限公司 | Parking mechanism and detection device |
| CN114391962B (en) * | 2021-12-15 | 2023-08-04 | 深圳市爱博医疗机器人有限公司 | Linkage structure and portal frame for interventional operation robot |
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| KR20020066391A (en) * | 2001-02-08 | 2002-08-16 | 쓰리-파이브 시스템즈, 인크. | System and method for testing a display device |
| CN201788193U (en) * | 2010-02-10 | 2011-04-06 | 中兴通讯股份有限公司 | Cam and inclined plane combined mechanism and module power test fixture |
| CN105589229A (en) * | 2016-03-08 | 2016-05-18 | 凌云光技术集团有限责任公司 | Automatic lighting fixture for liquid crystal screen |
| CN205562600U (en) * | 2016-03-02 | 2016-09-07 | 苏州工业园区博亨电子有限公司 | Test fixture based on cam -linkage mechanism |
| CN205749702U (en) * | 2015-12-31 | 2016-11-30 | 南京科远驱动技术有限公司 | A kind of system test device of Small-power Inverter |
| CN106841990A (en) * | 2017-02-16 | 2017-06-13 | 京东方科技集团股份有限公司 | Display screen detection means |
| CN107478871A (en) * | 2017-09-08 | 2017-12-15 | 武汉精测电子技术股份有限公司 | It is a kind of to be used for flexible OLED panel and FPC automatic aligning lighting-up equipment |
| CN208937852U (en) * | 2018-08-16 | 2019-06-04 | 武汉精测电子集团股份有限公司 | A kind of double cam prepressing device |
-
2018
- 2018-08-16 CN CN201810936958.XA patent/CN108828808B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020066391A (en) * | 2001-02-08 | 2002-08-16 | 쓰리-파이브 시스템즈, 인크. | System and method for testing a display device |
| CN201788193U (en) * | 2010-02-10 | 2011-04-06 | 中兴通讯股份有限公司 | Cam and inclined plane combined mechanism and module power test fixture |
| CN205749702U (en) * | 2015-12-31 | 2016-11-30 | 南京科远驱动技术有限公司 | A kind of system test device of Small-power Inverter |
| CN205562600U (en) * | 2016-03-02 | 2016-09-07 | 苏州工业园区博亨电子有限公司 | Test fixture based on cam -linkage mechanism |
| CN105589229A (en) * | 2016-03-08 | 2016-05-18 | 凌云光技术集团有限责任公司 | Automatic lighting fixture for liquid crystal screen |
| CN106841990A (en) * | 2017-02-16 | 2017-06-13 | 京东方科技集团股份有限公司 | Display screen detection means |
| CN107478871A (en) * | 2017-09-08 | 2017-12-15 | 武汉精测电子技术股份有限公司 | It is a kind of to be used for flexible OLED panel and FPC automatic aligning lighting-up equipment |
| CN208937852U (en) * | 2018-08-16 | 2019-06-04 | 武汉精测电子集团股份有限公司 | A kind of double cam prepressing device |
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| Publication number | Publication date |
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| CN108828808A (en) | 2018-11-16 |
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