CN210381491U

CN210381491U - High-precision COF (chip on film) bending jig for mobile phone display screen module

Info

Publication number: CN210381491U
Application number: CN201921032985.0U
Authority: CN
Inventors: 李阳
Original assignee: Dongguan Depute Electronics Co ltd
Current assignee: Dongguan Depute Electronics Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-21
Anticipated expiration: 2029-07-03

Abstract

The utility model provides a cell-phone display screen module COF tool of buckling of high accuracy, include the bottom plate and install the bearing frame in bottom plate rear end both sides, the bottom plate mid-mounting has sharp slip table, install the module support plate on the sharp slip table, module support plate middle part is provided with the constant head tank, the fixed block is installed to module support plate front end, install the buffer in the fixed block, bearing frame upper portion is provided with the bearing, install the axle sleeve in the bearing frame, be fixed with the upset extension board on the axle sleeve, two be fixed with the adsorption plate between the upset extension board, the adsorption plate middle part is provided with the suction nozzle, and this cell-phone display screen module COF tool of buckling of high accuracy has overcome the direct manual poor problem of precision of buckling, promotes the.

Description

High-precision COF (chip on film) bending jig for mobile phone display screen module

Technical Field

The utility model relates to a cell-phone display screen module COF tool of buckling of high accuracy.

Background

COF (Chip On Flex, or, Chip On Film, commonly called as Chip On Film), a technology of packaging a Chip and a flexible substrate circuit by fixing a driving IC On a flexible circuit board and using a flexible additional circuit board as a packaging Chip carrier. When a mobile phone display screen module (hereinafter referred to as a module) is assembled, a process is simple and practical, and is difficult and heavy, namely COF bending in a module assembling process. According to the requirements of customers on COF bending: 1. the bending tension is uniform and the COF cannot be excessively pulled to damage the COF; 2, controlling the precision of the specific edge of the FPC after COF bending and a marker line printed on the backlight to be +/-0.05 mm; 3. IC on COF and electronic components on FPC must not be damaged during bending process 4. in order to reduce production cost, special automation equipment is not considered. According to the above requirements, the purely manual operation is not possible at all, so a compromise is considered, and a jig scheme is designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not enough of above-mentioned prior art, provide a cell-phone display screen module COF of high accuracy tool of buckling, overcome the direct manual poor problem of precision of buckling, promote the yields that the COF buckled.

The utility model discloses a realize like this, a cell-phone display screen module COF tool of buckling of high accuracy, include the bottom plate and install the bearing frame in bottom plate rear end both sides, the bottom plate mid-mounting has sharp slip table, install the module support plate on the sharp slip table, module support plate middle part is provided with the constant head tank, the fixed block is installed to module support plate front end, install the buffer in the fixed block, bearing frame upper portion is provided with the bearing, install the axle sleeve in the bearing frame, be fixed with the upset extension board on the axle sleeve, two be fixed with the adsorption plate between the upset extension board, the adsorption plate middle part is provided with the suction nozzle.

Preferably, a rotating shaft is installed in the bearing.

Preferably, the rotating shaft is transversely arranged in the shaft sleeve.

Preferably, the suction nozzle is provided in plurality.

Preferably, the suction nozzles are distributed in an inverted T shape.

Preferably, the buffer is correspondingly arranged at one end of the positioning groove.

Preferably, a handle extends outwards from the right side of the turnover support plate on the right side.

Preferably, the suction nozzle has a rear surface penetrating through the suction plate.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the linear sliding table is used for controlling a mobile phone display screen module arranged in the module carrier plate to carry out micro-distance adjustment along the Y-axis direction, so that when the mobile phone display screen module COF is controlled to be bent, the position precision of the module FPC can be well controlled, the debugging and the calibration are particularly simple and convenient, and after the first debugging and the calibration, the subsequent debugging and the calibration are basically not needed; the buffer has horizontal thrust to the mobile phone display screen module arranged in the module carrier plate, so that the mobile phone display screen module is clamped in the positioning groove and can be clamped more stably, and the module is prevented from being taken up by traction when the COF is bent; the arranged bearing seat group, the bearing group, the overturning support plate, the adsorption plate and the suction nozzle form an overturning bending structure, so that electronic elements on a module COF and an FPC are prevented from being damaged by manual holding, the uniformity of tension force during bending of the COF is ensured, and the safety of parts on the module is ensured again; the whole design structure is very simple and convenient, the operation is convenient, the debugging is easy, the production efficiency requirement can be met, and the production cost is reduced.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of a high-precision COF bending jig for a mobile phone display screen module according to an embodiment of the present invention;

fig. 2 is a front view structural diagram of a high-precision COF bending jig for a mobile phone display screen module according to an embodiment of the present invention;

fig. 3 is a left view structural diagram of a high-precision COF bending jig for a mobile phone display screen module according to an embodiment of the present invention;

fig. 4 is the embodiment of the utility model provides a cell-phone display screen module COF of high accuracy tool of overlooking the structure chart.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The following description is given to the embodiment in conjunction with fig. 1-4, and the embodiment provides a high-precision COF bending jig for a mobile phone display screen module, which includes a bottom plate 1 and bearing seats 2 installed on two sides of the rear end of the bottom plate 1, and the bearing seats are welded and fixed on the bottom plate. The middle part of the bottom plate 1 is provided with a linear sliding table 3, and the MZS 40/60/90 synchronous cog belt is adopted to drive the precise linear sliding table, so that the linear sliding table is suitable for reciprocating motion with high load capacity. Install module support plate 4 on sharp slip table 3, module support plate 4 is fixed with the slider of sharp slip table to make the module support plate can the bulk movement. And a positioning groove 5 is arranged in the middle of the module carrier plate 4 and used for installing the mobile phone display screen module. And a fixing block 6 is arranged at the front end of the module carrier plate 4 and is fixed at the front end of the module carrier plate through screws. Install buffer 7 in the fixed block 6, the buffer adopts hydraulic buffer, and the piston rod of buffer can the horizontal direction exert thrust to the cell-phone display screen module of installing in the constant head tank to it is firm to make cell-phone display screen press from both sides the dress. The bearing seat is characterized in that a bearing 8 is arranged on the upper portion of the bearing seat 2, a shaft sleeve 9 is installed in the bearing seat 2, a turnover support plate 10 is fixed on the shaft sleeve 9, and the turnover support plate can freely rotate on the bearing seat. An adsorption plate 11 is fixed between the two turnover support plates 10 and connected with the turnover support plates through screws, and a plurality of threaded holes are correspondingly formed in two sides of the adsorption plate. The middle part of the adsorption plate 11 is provided with a suction nozzle 12, and the suction nozzle adopts a vacuum suction nozzle and can adsorb the FPC of the mobile phone display screen module.

A rotating shaft 13 is arranged in the bearing 8. The shaft 13 is mounted across the shaft sleeve 9 so that the shaft sleeve can rotate freely outside the shaft.

The suction nozzle 12 is provided in plurality. The suction nozzle 12 is the type of falling T distribution, can adapt the FPC shape of cell-phone display screen module, keeps adsorbing firmly.

The buffer 7 is correspondingly arranged at one end of the positioning groove 5, and can apply horizontal thrust to the mobile phone display screen module in the positioning groove to keep clamping firm.

The right side of the turning support plate 10 on the right side is provided with a handle 14 in an extending mode, and the turning support plate can be conveniently rotated manually to adjust the angle.

The back of the suction nozzle 12 penetrates through the suction plate 11, and the back of the suction plate can be provided with a vacuumizing device communicated with the suction nozzle, so that the suction nozzle can adsorb the FPC.

When in use, a mobile phone display screen module is placed on the module carrier plate, the mobile phone display screen module is firstly placed in a positioning groove of the module carrier plate, the buffer is used for fixing, the linear sliding table is used for adjusting the distance between the module carrier plate and the adsorption plate, the FPC on the mobile phone display screen module is embedded into the positioning groove of the adsorption plate, a suction nozzle on the adsorption plate is opened, the FPC is adsorbed in vacuum, the FPC of the module is slowly overturned and attached to the backlight of the mobile phone display screen module along the rotating shaft as a rotating center by holding the overturning support plate, the suction nozzle of the adsorption plate is closed in a vacuum adsorption state, the rotating support plate is overturned to the original position, the mobile phone display screen module is taken down from the module carrier plate, whether the standard is reached after bending is, if the deviation appears in the X direction, can adjust the relative position of adsorption plate and upset extension board, if the deviation appears in the Y direction, then adjust sharp slip table, just can carry out module COF in batches after finishing adjusting and buckle.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a cell-phone display screen module COF tool of buckling of high accuracy, includes bottom plate (1) and installs bearing frame (2) in bottom plate (1) rear end both sides, a serial communication port, bottom plate (1) mid-mounting has sharp slip table (3), install module support plate (4) on sharp slip table (3), module support plate (4) middle part is provided with constant head tank (5), fixed block (6) are installed to module support plate (4) front end, install buffer (7) in fixed block (6), bearing frame (2) upper portion is provided with bearing (8), install axle sleeve (9) in bearing frame (2), be fixed with upset extension board (10) on axle sleeve (9), two be fixed with adsorption plate (11) between upset extension board (10), adsorption plate (11) middle part is provided with suction nozzle (12).

2. The high-precision COF (chip on film) bending jig for the display screen module of the mobile phone according to claim 1, wherein a rotating shaft (13) is installed in the bearing (8).

3. The high-precision COF (chip on film) bending jig for the display screen module of the mobile phone according to claim 2, wherein the rotating shaft (13) is installed in the shaft sleeve (9) in a transverse mode.

4. The high-precision COF (chip on film) bending jig for the display screen module of the mobile phone according to claim 1, wherein a plurality of suction nozzles (12) are arranged.

5. The high-precision COF (chip on film) bending jig for the display screen module of the mobile phone according to claim 4, wherein the suction nozzles (12) are distributed in an inverted T shape.

6. The COF bending jig for the display screen module of the mobile phone according to claim 1, wherein the buffer (7) is correspondingly arranged at one end of the positioning groove (5).

7. The high-precision COF bending jig for the display screen module of the mobile phone according to claim 1, wherein a handle (14) extends outwards from the right side of the turnover support plate (10) on the right side.

8. The high-precision COF (chip on film) bending jig for the display screen module of the mobile phone according to claim 1, wherein the suction nozzle (12) penetrates through the absorption plate (11) from the back side.