CN212496357U

CN212496357U - Device for positioning and pressing backlight plate

Info

Publication number: CN212496357U
Application number: CN202021043306.2U
Authority: CN
Inventors: 雷泽江
Original assignee: Nanjing Yonghong Automation Equipment Co ltd
Current assignee: Nanjing Yonghong Automation Equipment Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-02-09
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses a device to backlight plate location and pressfitting relates to backlight plate technical field, for solving the relatively poor problem of current compression fittings location effect. The roof is installed to the top of base, the cylinder is installed to the centre of roof upper end, the pressfitting board is installed to the lower extreme of cylinder, and pressfitting board and cylinder fixed connection, install the guide bar between base and the roof, and guide bar and the equal fixed connection of base and roof, and the guide bar runs through the pressfitting board, install the uide bushing between guide bar and the pressfitting board, the negative pressure adsorption plate is installed to the lower extreme of pressfitting board, be provided with a plurality of first negative pressure adsorption holes on the terminal surface of negative pressure adsorption plate, first small-size negative pressure pump is installed to the upper end of pressfitting board, auxiliary positioning board is installed to the lower extreme of roof, and auxiliary positioning board runs through the pressfitting board, and pressfitting board and auxiliary positioning board sliding connection, the lower extreme of negative pressure adsorption plate is provided with the.

Description

Device for positioning and pressing backlight plate

Technical Field

The utility model relates to a board technical field in a poor light specifically is a device to board location in a poor light and pressfitting.

Background

The backlight is a light source device for ensuring the brightness of the back of the liquid crystal display, and the liquid crystal display itself is transparent and does not emit light, so the backlight is needed for assistance. The indexes of the backlight plate such as brightness and uniformity have direct influence on the relevant performance of the liquid crystal display screen, along with the great development and use of the touch screen, the relevant production and assembly field also makes great progress, and the backlight plate and the backlight source need to be pressed in the process of assembling the touch screen into the machine body.

However, the positioning effect of the existing pressing device is poor, so that the existing requirements are not met, and a device for positioning and pressing the backlight plate is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device to backlight plate location and pressfitting to solve the current relatively poor problem of compression fittings location effect that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a device for positioning and pressing a backlight plate comprises a base, wherein a top plate is installed above the base, an air cylinder is installed in the middle of the upper end of the top plate, a pressing plate is installed at the lower end of the air cylinder and fixedly connected with the air cylinder, a guide rod is installed between the base and the top plate and fixedly connected with the base and the top plate and penetrates through the pressing plate, a guide sleeve is installed between the guide rod and the pressing plate, a negative pressure adsorption plate is installed at the lower end of the pressing plate, a plurality of first negative pressure adsorption holes are formed in the end face of the negative pressure adsorption plate, a first small negative pressure pump is installed at the upper end of the pressing plate, an auxiliary positioning plate is installed at the lower end of the top plate and penetrates through the pressing plate, the pressing plate is slidably connected with the auxiliary positioning plate, a backlight plate main body is arranged at the lower end of the negative pressure adsorption plate, and a placing table is installed at, the middle of placing the bench end is provided with the constant head tank, the upper end of constant head tank is provided with a plurality of second negative pressure and adsorbs the hole, the under casing is installed to the lower extreme of base, the internally mounted of under casing has the small-size negative pressure pump of second, place the upper end of platform and placed the backlight main part.

Preferably, a buffer spring is installed at the upper end of the base, and the buffer spring is located outside the guide rod.

Preferably, the lower end of the buffer spring is connected with the base through a screw.

Preferably, the guide rod is connected with the guide sleeve in a sliding mode.

Preferably, first small-size negative pressure pump passes through screwed connection with the pressfitting board, the under casing passes through screwed connection with the small-size negative pressure pump of second, the roof passes through screwed connection with the cylinder.

Preferably, four guide rods are provided.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a cylinder work drives the pressfitting board downstream, realizes the pressfitting action of board main part in a poor light and backlight main part, at the in-process of pressfitting, four guide bars play guiding orientation's effect, improve the precision of location, assistance-localization real-time board and constant head tank are fixed the relative position of board main part in a poor light and backlight main part respectively, the fashionable location accuracy of further assurance pressfitting, buffer spring plays the effect of buffering when the pressfitting, avoid the pressfitting dynamics too big to cause the damage to the board main part in a poor light.

2. The utility model discloses a first small-size negative pressure pump work adsorbs the backlight main part through first negative pressure adsorption hole, and the backlight main part is adsorbed through second negative pressure adsorption hole in the work of the small-size negative pressure pump of second, carries out position fixing to backlight main part and backlight main part when the pressfitting, prevents at the two relative movement of pressfitting in-process, improves the quality of pressfitting.

Drawings

Fig. 1 is a schematic structural view of a device for positioning and pressing a backlight plate according to the present invention;

fig. 2 is a bottom view of the negative pressure adsorption plate of the present invention;

fig. 3 is a top view of the placing table of the present invention.

In the figure: 1. a base; 2. a top plate; 3. a cylinder; 4. pressing the plywood; 5. a guide bar; 6. a guide sleeve; 7. a negative pressure adsorption plate; 8. a first negative pressure adsorption hole; 9. a first small negative pressure pump; 10. an auxiliary positioning plate; 11. a backlight plate main body; 12. a placing table; 13. positioning a groove; 14. a second negative pressure adsorption hole; 15. a bottom box; 16. a second small negative pressure pump; 17. a backlight source main body; 18. a buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a device for positioning and pressing a backlight plate comprises a base 1, a top plate 2 is arranged above the base 1, a cylinder 3 is arranged in the middle of the upper end of the top plate 2, a pressing plate 4 is arranged at the lower end of the cylinder 3, the pressing plate 4 is fixedly connected with the cylinder 3, a guide rod 5 is arranged between the base 1 and the top plate 2, the guide rod 5 is fixedly connected with the base 1 and the top plate 2, the guide rod 5 penetrates through the pressing plate 4, a guide sleeve 6 is arranged between the guide rod 5 and the pressing plate 4, the pressing plate 4 can be driven by the cylinder 3 to move downwards along the guide rod 5 when the cylinder 3 works, a negative pressure adsorption plate 7 is arranged at the lower end of the pressing plate 4, a plurality of first negative pressure adsorption holes 8 are arranged on the end surface of the negative pressure adsorption plate 7, a first small negative pressure pump 9 is arranged at the upper end of the pressing plate 4, an auxiliary positioning plate 10 is arranged, the pressing plate 4 is connected with the auxiliary positioning plate 10 in a sliding mode, the backlight plate main body 11 is arranged at the lower end of the negative pressure adsorption plate 7, the placing table 12 is installed at the upper end of the base 1, the positioning groove 13 is formed in the middle of the upper end of the placing table 12, the auxiliary positioning plate 10 and the positioning groove 13 respectively fix the relative positions of the backlight plate main body 11 and the backlight plate main body 17, the positioning accuracy during pressing is further guaranteed, the second negative pressure adsorption holes 14 are formed in the upper end of the positioning groove 13, the bottom box 15 is installed at the lower end of the base 1, the second small negative pressure pump 16 is installed inside the bottom box 15, the backlight plate main body 17 is placed at the upper end of the placing table 12, the first small negative pressure pump 9 and the second small negative pressure pump 16 fix the positions of the backlight plate main body 17 and the backlight plate main body 11 during pressing.

Further, buffer spring 18 is installed to the upper end of base 1, and buffer spring 18 is located the outside of guide bar 5, and buffer spring 18 is compressed and is realized the buffering, avoids the too big damage that causes backlight plate main part 11 of pressfitting dynamics.

Further, the lower end of the buffer spring 18 is connected with the base 1 through a screw, so that the connection mode is simple and the maintenance is facilitated.

Further,

guide bar

5 and 6 sliding connection of uide bushing improve the direction precision, and 3 work of cylinder can drive pressfitting board 4 along 5 downstream of guide bar.

Further, first small-size negative pressure pump 9 passes through bolted connection with pressfitting board 4, and the under casing 15 passes through bolted connection with second small-size negative pressure pump 16, and roof 2 passes through bolted connection with cylinder 3, and the connected mode is simple, and the installation is convenient with the dismantlement, does benefit to the maintenance.

Further, the guide rods 5 are four, and the guide accuracy is improved.

The working principle is as follows: when in use, the backlight source main body 17 is arranged at the upper end of the placing table 12, the lower end of the backlight source main body is arranged in the positioning groove 13, the second small-sized negative pressure pump 16 works to generate negative pressure adsorption force through the second negative pressure adsorption hole 14 to adsorb and fix the backlight source main body 17, the backlight plate main body 11 to be pressed is arranged in the auxiliary positioning plate 10 and is contacted with the negative pressure adsorption plate 7, the first small-sized negative pressure pump 9 works to generate negative pressure adsorption force through the first negative pressure adsorption hole 8 to adsorb and fix the backlight plate main body 11, the backlight source main body 17 and the backlight plate main body 11 are fixed in position during pressing to prevent the relative movement during pressing, the pressing quality is improved, the air cylinder 3 works to drive the pressing plate 4 to move downwards along the guide rod 5, the pressing plate 4 drives the backlight plate main body 11 to move downwards for pressing, during pressing, the pressing plate 4 is firstly contacted with the buffer spring 18, buffer spring 18 is compressed and is realized the buffering, avoids the pressfitting dynamics too big to cause the damage to board main part 11 in a poor light, and after the pressfitting was accomplished, first small-size negative pressure pump 9 stop work, and first negative pressure adsorption hole 8 adsorption affinity disappears to relieve and the board main part 11 in a poor light adsorption affinity within a definite time, accomplish the pressfitting of board main part 11 in a poor light and backlight main part 17, cylinder 3 drives the pressfitting board 4 and resets.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a device to backlight board location and pressfitting, includes base (1), its characterized in that: roof (2) is installed above base (1), cylinder (3) is installed in the middle of roof (2) upper end, pressboard (4) is installed to the lower extreme of cylinder (3), and pressboard (4) and cylinder (3) fixed connection, install guide bar (5) between base (1) and roof (2), and guide bar (5) and base (1) and roof (2) equal fixed connection, and guide bar (5) run through pressboard (4), install uide bushing (6) between guide bar (5) and pressboard (4), negative pressure adsorption plate (7) is installed to the lower extreme of pressboard (4), be provided with a plurality of first negative pressure adsorption holes (8) on the terminal surface of negative pressure adsorption plate (7), first small-size negative pressure pump (9) is installed to the upper end of pressboard (4), auxiliary positioning board (10) is installed to the lower extreme of roof (2), and auxiliary positioning board (10) run through pressboard (4), and pressboard (4) and auxiliary positioning board (10) sliding connection, the lower extreme of negative pressure adsorption plate (7) is provided with backlight main part (11), platform (12) are placed to the upper end of base (1) is installed, the centre of placing platform (12) upper end is provided with constant head tank (13), the upper end of constant head tank (13) is provided with a plurality of second negative pressure and adsorbs hole (14), under casing (15) are installed to the lower extreme of base (1), the internally mounted of under casing (15) has the small-size negative pressure pump of second (16), place the upper end of platform (12) and placed backlight main part (17).

2. The apparatus as claimed in claim 1, wherein the backlight module further comprises: a buffer spring (18) is installed at the upper end of the base (1), and the buffer spring (18) is located outside the guide rod (5).

3. The apparatus as claimed in claim 2, wherein the backlight module further comprises: the lower end of the buffer spring (18) is connected with the base (1) through a screw.

4. The apparatus as claimed in claim 1, wherein the backlight module further comprises: the guide rod (5) is connected with the guide sleeve (6) in a sliding manner.

5. The apparatus as claimed in claim 1, wherein the backlight module further comprises: first small-size negative pressure pump (9) pass through the screw connection with pressfitting board (4), bottom case (15) pass through the screw connection with second small-size negative pressure pump (16), roof (2) pass through the screw connection with cylinder (3).

6. The apparatus as claimed in claim 1, wherein the backlight module further comprises: the number of the guide rods (5) is four.