CN107884965B - Three-dimensional pressure head fine adjustment mechanism for liquid crystal display screen pressing device - Google Patents
Three-dimensional pressure head fine adjustment mechanism for liquid crystal display screen pressing device Download PDFInfo
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- CN107884965B CN107884965B CN201711411549.XA CN201711411549A CN107884965B CN 107884965 B CN107884965 B CN 107884965B CN 201711411549 A CN201711411549 A CN 201711411549A CN 107884965 B CN107884965 B CN 107884965B
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- 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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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Abstract
The invention discloses a three-dimensional pressure head fine adjustment mechanism for a liquid crystal display screen pressing device, which comprises a driving assembly, a fine adjustment assembly and a pressure head assembly which are sequentially connected from top to bottom, wherein the fine adjustment assembly comprises: a fine tuning base fixedly connected with the driving component; and the first rotating adjusting block and the second rotating adjusting block are sequentially connected below the fine adjusting base from top to bottom, wherein an upper rotating curved surface and a lower rotating curved surface are respectively formed on the upper surface and the lower surface of the first rotating adjusting block, the upper rotating curved surface is an upward convex cylindrical surface, the lower rotating curved surface is an upward concave cylindrical surface, the lower surface of the fine adjusting base is adaptive to the upper rotating curved surface, and the upper surface of the second rotating adjusting block is adaptive to the lower rotating curved surface. According to the invention, the parallelism between the pressing plane of the pressing head and the pressed object can be more conveniently and accurately adjusted, so that the pressing head can provide stable and uniform pressing pressure, the pressed IC is not easy to glue and fall off, and the quality of the liquid crystal display screen is improved.
Description
Technical Field
The invention relates to the field of automatic assembly of liquid crystal display screens, in particular to a three-dimensional pressure head fine adjustment mechanism for a liquid crystal display screen pressing device.
Background
The lcd, LCD (Liquid Crystal Display), is a flat, ultra-thin display device, which consists of a number of color or black and white pixels, placed in front of a light source or reflective surface.
The display principle of LCD is that liquid crystal material is filled between two parallel plates, and the arrangement state of molecules in the liquid crystal material is changed by voltage so as to attain the goal of shading light and transmitting light to display images with different depths and different heights. Currently, monochrome LCDs have been almost withdrawn from the notebook market, while color LCDs continue to develop. Color LCDs are mainly divided into STN and TFT, wherein TFT (Thin Film Transistor) LCD, also called active transistor TFT LCD, is also known as true color LCD; DSTN (Dual-Scn Twisted Nematic) LCD, a Dual scanning liquid crystal display, is one display mode of STN LCD, and has been taken out of the market.
The electric signal component of the liquid crystal display screen mainly comprises a backlight circuit and a display circuit, wherein the display circuit is used for transmitting charges and control signals required by the pixel driving of the liquid crystal panel, the charges and the control signals are mainly transmitted by using a printed circuit board (PCB (Printed Circuit Board)), and meanwhile, the charges and the control signals are transmitted into the liquid crystal panel through a driving IC (Driver IC). One end of the Driver IC is connected with the liquid crystal panel, and the other end is connected with the PCB. The two adjacent sides of the liquid crystal panel are divided into a Gate end and a Source end, driver ICs at the Gate end are connected to the Gate end of the liquid crystal panel and are responsible for switching on and off each row of transistors at a time, the Driver ICs at the Source end are connected to the Gate end of the liquid crystal panel, and when the transistors are switched on, the Driver ICs at the Source end can only control brightness, gray scale and color line by line to enter pixels of the liquid crystal panel through channels formed by the Source ends and the Drain ends of the transistors. Therefore, in the process of manufacturing the liquid crystal display, the liquid crystal panel, the Driver IC and the PCB are required to be pressed in sequence.
The pressing process is mainly divided into two processes, namely, prepressing and the present pressure, wherein the prepressing is the process before the present pressure. Pre-pressing, namely, punching conductive adhesive films on connection areas at two ends of the Driver IC, and then applying certain pressure to position the Driver IC on the conductive adhesive films; the Driver IC is fixedly connected with the PCB or the liquid crystal panel after a certain pressure is applied to the Driver IC which is positioned.
In the existing pressing mechanism, the phenomenon of uneven pressure caused by difficult adjustment of parallelism between a pressing plane of a pressing head and a pressed object is caused, and the problems of falling off, glue opening and the like of an IC and a PCB or a liquid crystal panel after pressing are easily caused. In view of the foregoing, there is a need for developing a three-dimensional pressing head fine adjustment mechanism for a liquid crystal display screen pressing device to solve the above problems.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the three-dimensional pressure head fine adjustment mechanism for the liquid crystal display screen pressing device, which can adjust the pressing plane of the pressure head from three dimensions, so that the parallelism between the pressing plane of the pressure head and a pressed object can be adjusted more conveniently and accurately, the pressure head can provide stable and uniform pressing pressure, the pressed IC is not easy to open and fall off, and the quality of the liquid crystal display screen is improved.
To achieve the above objects and other advantages and in accordance with the purpose of the present invention, there is provided a three-dimensional ram fine adjustment mechanism for a liquid crystal display screen pressing device, comprising a driving assembly, a fine adjustment assembly and a ram assembly connected in sequence from top to bottom, the fine adjustment assembly comprising:
a fine tuning base fixedly connected with the driving component; and
the first rotation adjusting block and the second rotation adjusting block are sequentially connected below the fine adjustment base from top to bottom,
the upper surface and the lower surface of the first rotating adjusting block are respectively provided with an upper rotating curved surface and a lower rotating curved surface, the upper rotating curved surface is an upward convex cylindrical surface, the lower rotating curved surface is an upward concave cylindrical surface, the lower surface of the fine adjusting base is adaptive to the upper rotating curved surface, and the upper surface of the second rotating adjusting block is adaptive to the lower rotating curved surface.
Preferably, the quasi line of the upper rotating curved surface is an upward convex curve in the plane ZOY, and the generatrix of the upper rotating curved surface is a straight line extending along the X-axis direction.
Preferably, the alignment of the lower rotating surface is an upwardly convex curve in the plane ZOX, and the generatrix of the lower rotating surface is a straight line extending in the Y-axis direction.
Preferably, the first rotation adjusting block is rotatably connected with the fine adjustment base, and the second rotation adjusting block is rotatably connected with the first rotation adjusting block.
Preferably, the side surface of the first rotation adjusting block is provided with at least one first fixing piece connecting the first rotation adjusting block and the second rotation adjusting block.
Preferably, the power assembly comprises:
a driver; and
a mounting seat connected with the power output end of the driver, the lower surface of the mounting seat is connected with the fine adjustment base,
wherein, be equipped with the adjusting block between the power take off end of mount pad and driver, inlay on the adjusting block and be equipped with circular cushion, the power take off end of driver offsets with the upper surface of circular cushion, the side of circular cushion be equipped with the rotatory fine setting knob of Z axle that circular cushion looks rigid coupling.
Preferably, a connecting block is fixedly connected between the driving component and the fine adjustment base, and a second fixing piece for connecting the driving component, the connecting block and the fine adjustment base is arranged on the side face of the connecting block.
Preferably, the ram assembly comprises:
a pressure head mounting seat; and
a pressure head embedded in the pressure head mounting seat,
wherein, the pressure head mount pad rigid coupling is in the bottom of trimming subassembly.
Preferably, a heat insulation gasket is arranged between the pressure head mounting seat and the fine adjustment assembly, and a plurality of heat insulation support columns are connected between the heat insulation gasket and the pressure head mounting seat.
Compared with the prior art, the invention has the beneficial effects that: the pressing plane of the pressing head can be adjusted from three dimensions, so that the parallelism between the pressing plane of the pressing head and a pressed object can be adjusted more conveniently and accurately, the pressing head can provide stable and uniform pressing pressure, the pressed IC is not easy to glue and fall off, and the quality of a liquid crystal display screen is improved.
Drawings
FIG. 1 is a three-dimensional structure view of a three-dimensional indenter fine tuning mechanism for a LCD screen bonding device according to the present invention;
FIG. 2 is a right side view of a three-dimensional indenter fine tuning mechanism for a LCD bonding apparatus according to the present invention;
fig. 3 is an exploded view of a three-dimensional ram fine adjustment mechanism for a lcd panel press according to the present invention.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a device for practicing the invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms (e.g., "connected" and "attached") referring to an attachment, coupling, etc., refer to a relationship wherein these structures are directly or indirectly secured or attached to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
Referring to fig. 1 to 3, a three-dimensional ram fine adjustment mechanism 1 for a liquid crystal display screen pressing device includes a driving assembly 11, a fine adjustment assembly 12 and a ram assembly 13 sequentially connected from top to bottom, wherein the fine adjustment assembly 12 includes:
a fine tuning base 121 fixedly connected with the driving assembly 11; and
a first rotation adjusting block 122 and a second rotation adjusting block 123 connected to the lower side of the fine adjustment base 121 in this order from the top down,
the upper and lower surfaces of the first rotation adjusting block 122 are respectively formed with an upper rotation curved surface 1221 and a lower rotation curved surface 1222, the upper rotation curved surface 1221 is an upwardly convex cylindrical surface, the lower rotation curved surface 1222 is an upwardly concave cylindrical surface, the lower surface of the fine adjustment base 121 is adapted to the upper rotation curved surface 1221, and the upper surface of the second rotation adjusting block 123 is adapted to the lower rotation curved surface 1222.
Referring to fig. 3, the directrix of the upper rotating curved surface 1221 is an upwardly convex curve in the plane ZOY, and the generatrix of the upper rotating curved surface 1221 is a straight line extending in the X-axis direction.
Further, the directrix of the lower rotating surface 1222 is an upwardly convex curve in the plane ZOX, and the generatrix of the lower rotating surface 1222 is a straight line extending in the Y-axis direction.
Further, a first rotation adjusting block 122 is rotatably connected to the fine adjustment base 121, and a second rotation adjusting block 123 is rotatably connected to the first rotation adjusting block 122. Referring to fig. 3, the side of the first rotation adjusting block 122 is provided with at least one first fixing piece 125 connecting the first rotation adjusting block 122 and the second rotation adjusting block 123. In the preferred embodiment, the geometry of the first rotation adjusting block 122 and the second rotation adjusting block 123 is rectangular, and the first fixing piece 125 is provided with 4 pieces, which are respectively provided on 4 sides of the first rotation adjusting block 122.
Referring to fig. 2 and 3, the power assembly 11 includes:
a driver 112; and
a mounting base 111 connected to the power output end of the driver 112, a lower surface of the mounting base 111 being connected to the fine adjustment base 121,
wherein, an adjusting block 113 is arranged between the mounting seat 111 and the power output end of the driver 112, a round cushion block 115 is embedded on the adjusting block 113, the power output end of the driver 112 is propped against the upper surface of the round cushion block 115, and a Z-axis rotating fine tuning knob 1151 fixedly connected with the round cushion block 115 is arranged on the side surface of the round cushion block 115. In a preferred embodiment, an L-shaped stop 114 is provided between the power take off of the actuator 112 and the adjustment block 113.
Further, a connection block 124 is fixedly connected between the driving assembly 11 and the fine adjustment base 121, and a second fixing piece 1241 for connecting the driving assembly 11, the connection block 124 and the fine adjustment base 121 is disposed on a side surface of the connection block 124.
Further, the ram assembly 13 includes:
a ram mount 131; and
a ram 132 embedded in the ram mount 131,
the ram mounting base 131 is fixedly connected to the bottom end of the fine adjustment assembly 12.
Further characterized in that a heat insulation gasket 133 is arranged between the pressure head mounting base 131 and the fine adjustment assembly 12, and a plurality of heat insulation support columns 134 are connected between the heat insulation gasket 133 and the pressure head mounting base 131.
The levelness of the ram 132 on the plane ZOY may be adjusted by adjusting the rotation of the first rotation adjustment block 122 about the X-axis; the levelness of the ram 132 on the plane ZOX can be adjusted by adjusting the rotation of the second rotational adjustment block 123 about the Y axis; the degree of centering of the ram in plane XOY can be adjusted by adjusting the Z-axis rotation fine adjustment knob 1151.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (8)
1. A three-dimensional pressure head fine adjustment mechanism (1) for a liquid crystal display screen pressing device comprises a driving component (11), a fine adjustment component (12) and a pressure head component (13) which are sequentially connected from top to bottom, and is characterized in that,
the drive assembly (11) comprises:
a driver (112); and
a mounting seat (111) connected with the power output end of the driver (112), the lower surface of the mounting seat (111) is connected with the fine adjustment base (121),
an adjusting block (113) is arranged between the mounting seat (111) and the power output end of the driver (112), a round cushion block (115) is embedded on the adjusting block (113), the power output end of the driver (112) is propped against the upper surface of the round cushion block (115), and a Z-axis rotary fine adjustment knob (1151) fixedly connected with the round cushion block (115) is arranged on the side surface of the round cushion block (115);
the trimming assembly (12) comprises:
a fine tuning base (121) fixedly connected with the driving component (11); and
a first rotation adjusting block (122) and a second rotation adjusting block (123) which are sequentially connected below the fine adjustment base (121) from top to bottom,
wherein, upper and lower surfaces of first rotation regulating block (122) are formed with upper rotating curved surface (1221) and lower rotating curved surface (1222) respectively, and upper rotating curved surface (1221) is the bellied cylinder that makes progress, and lower rotating curved surface (1222) is the concave cylinder that makes progress, and the lower surface of fine setting base (121) suits with upper rotating curved surface (1221), and the upper surface of second rotation regulating block (123) suits with lower rotating curved surface (1222).
2. The three-dimensional indenter fine adjustment mechanism (1) for a liquid crystal display bonding device according to claim 1, wherein the quasi-line of the upper rotating curved surface (1221) is an upwardly convex curve in the plane ZOY, and the generatrix of the upper rotating curved surface (1221) is a straight line extending in the X-axis direction.
3. The three-dimensional indenter fine adjustment mechanism (1) for a liquid crystal display bonding device according to claim 1, wherein the alignment of the lower rotating curved surface (1222) is an upwardly convex curve in the plane ZOX, and the generatrix of the lower rotating curved surface (1222) is a straight line extending in the Y-axis direction.
4. The three-dimensional indenter fine adjustment mechanism (1) for a liquid crystal display screen pressing device according to claim 1, wherein the first rotation adjustment block (122) is rotatably connected with the fine adjustment base (121), and the second rotation adjustment block (123) is rotatably connected with the first rotation adjustment block (122).
5. The three-dimensional pressing head fine adjustment mechanism for a liquid crystal display screen pressing device according to claim 1, wherein at least one first fixing piece (125) connecting the first rotation adjustment block (122) and the second rotation adjustment block (123) is provided on a side surface of the first rotation adjustment block (122).
6. The three-dimensional pressing head fine adjustment mechanism (1) for the liquid crystal display screen pressing device according to claim 1, wherein a connecting block (124) is fixedly connected between the driving component (11) and the fine adjustment base (121), and a second fixing piece (1241) for connecting the driving component (11), the connecting block (124) and the fine adjustment base (121) is arranged on the side surface of the connecting block (124).
7. The three-dimensional ram fine adjustment mechanism (1) for a liquid crystal display screen pressing device according to any one of claims 1 to 6, wherein the ram assembly (13) comprises:
a ram mount (131); and
a pressure head (132) embedded in the pressure head mounting seat (131),
wherein, pressure head mount pad (131) rigid coupling is in the bottom of fine setting subassembly (12).
8. The three-dimensional pressure head fine adjustment mechanism (1) for a liquid crystal display screen pressing device according to claim 7, wherein a heat insulation gasket 133 is arranged between the pressure head mounting seat (131) and the fine adjustment assembly (12), and a plurality of heat insulation support columns (134) are connected between the heat insulation gasket (133) and the pressure head mounting seat (131).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711411549.XA CN107884965B (en) | 2017-12-23 | 2017-12-23 | Three-dimensional pressure head fine adjustment mechanism for liquid crystal display screen pressing device |
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| CN201711411549.XA CN107884965B (en) | 2017-12-23 | 2017-12-23 | Three-dimensional pressure head fine adjustment mechanism for liquid crystal display screen pressing device |
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| CN107884965B true CN107884965B (en) | 2023-07-04 |
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| CN108483877B (en) * | 2018-04-28 | 2021-06-22 | 业成科技（成都）有限公司 | Curved surface pressing device |
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