Platform for positioning flexible circuit board

Abstract

The utility model provides a platform for positioning a flexible circuit board, which comprises a positioning table and a supporting piece for supporting the positioning table, and the positioning table is provided with a supporting assembly and a sliding supporting block. The sliding supporting blocks are arranged at the two ends of the supporting assembly. The sliding supporting block and the supporting assembly are both provided with placing holes for placing the flexible circuit board, and a negative pressure device is arranged in the placing holes. The technical scheme has the beneficial effects that negative pressure suction can be performed on a warped part through the sliding supporting block and the supporting assembly through negative pressure suction, so that the warped part is recovered; the problem of inaccurate detection caused by component warping can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of display panel detection, and in particular relates to a platform for positioning a flexible circuit board. Background Art

[0002] During the production process of display panels, they need to be frequently lit for inspection. During the inspection, the display panel needs to be electrically connected to a signal generator to input a detection signal. Usually, the display panel is electrically connected to the signal generator through a PCB (Printed Circuit Board) module, and electricity and signals are input to the display panel through the signal generator to achieve the purpose of lighting up the display panel and performing various tests. The PCB module of the display panel has an interface (usually a connector), and one end of a test connection circuit board (usually a flexible circuit board, such as an FPC) is connected to the interface on the PCB module, and the other end is connected to a fixture.

[0003] In the prior art, there is an automatic process to achieve the connection between the flexible circuit board (FPC) and the PCB board. Before the automatic connection, the flexible circuit board (FPC) is precisely positioned and transferred to the photo stage to be adsorbed parallel to the stage. However, the flexible circuit board (FPC) is a soft material, and the edges and corners of the incoming material will be warped during operation, and then there will be blur when the camera takes the image, which will bring a large calculation deviation, reduce the overall accuracy of the equipment, and may cause the connection to fail, increasing the downtime rate of the equipment. Therefore, it is very necessary to design a positioning platform that can cope with the warping of the edges and corners of U-shaped flexible circuit boards (FPC) products. Utility Model Content

[0004] The utility model provides a platform for positioning a flexible circuit board, which can reduce the occurrence of plug-in failure problems caused by warping of product corners and increase the overall stability of the equipment.

[0005] Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

[0006] In order to achieve one or part or all of the above purposes or other purposes, a technical solution of the utility model provides a platform for positioning a flexible circuit board, including a positioning platform and a support member for supporting the positioning platform, wherein the positioning platform is provided with a support assembly and a sliding support block; the sliding support block is provided at both ends of the support assembly; the sliding support block and the support assembly both have placement holes for placing the flexible circuit board, and a negative pressure device is provided in the placement hole. The beneficial effect of this technical solution is that the utility model fixes the flexible circuit board through the sliding support block and the support assembly, and negative pressure absorption can be performed on the warped part through negative pressure adsorption on the sliding support block and the support assembly, so that the warped part is restored, which can effectively reduce the problem of inaccurate detection caused by the warping of the parts.

[0007] The support assembly includes a transverse portion and a longitudinal portion; the transverse portion is parallel to the positioning platform, and the transverse portion is aligned with the end of the positioning platform; the sliding support block is made of transparent material.

[0008] One end of the longitudinal portion of the sliding support block and the support assembly extends out of the positioning platform; and a placement hole is arranged at the position where the sliding support block and the support assembly extend out of the positioning platform.

[0009] The holes on the sliding support block and the support assembly are placed on the same straight line.

[0010] The positioning platform includes a supporting area and a sliding area; the sliding support block is placed in the sliding area; the sliding area is a rectangular groove opened inward from the surface of the positioning platform; an adjustment slide aligned with the end of the positioning platform is provided at one end of the sliding area; the sliding support block is clamped on the adjustment slide, and one end of the sliding support block is in contact with the end surface of the sliding area away from the adjustment slide.

[0011] The adjusting slide is a long strip with a rectangular cross section. The sliding support block is provided with a sliding groove that cooperates with the adjusting slide. The sliding groove cooperates with the adjusting slide to achieve limited sliding.

[0012] The sliding area is also provided with a groove penetrating the positioning platform; the sliding support block is provided with a pair of mounting holes; the bolts are inserted into the mounting holes and then penetrate the grooves.

[0013] The bolt is fixed by a nut after passing through the groove.

[0014] The lower end surface of the lateral portion is aligned with the side end surface of the sliding area.

[0015] A negative pressure suction cup is arranged in the placement hole; an air circuit connected to the negative pressure suction cup is arranged in the sliding support block and the support assembly; the air circuit arranged in the support assembly is connected to an external negative pressure air source; the air circuit arranged in the sliding support block is connected to the air circuit in the support assembly through an air pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model mainly include: 1. The flexible circuit board is fixed by a sliding support block and a support assembly, and the sliding support block and the support assembly can absorb the warped part by negative pressure adsorption, so that the warped part is restored, which can effectively reduce the problem of inaccurate detection caused by the warping of components.

[0017] 2. The internally designed air circuit only needs one air inlet pipe to provide a negative pressure source for the support assembly and the sliding support block, and the structure is more compact.

[0018] 3. The transparent support block is divided into two parts and can be adjusted left and right to adapt to FPCs of different lengths and sizes. The suction cup position can always be adjusted to the middle of the FPC plug-in area to avoid affecting the backlight effect due to the opacity of the suction cup. At the same time, the embedded suction cup is set on the support block, which can effectively reduce the thickness of the support block and reduce the refraction error caused by the transparent material.

[0019] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below with reference to the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of a certain viewing angle of the device of the utility model.

[0022] Figure 2 The utility model device Figure 1 A specific enlarged schematic diagram is shown in FIG.

[0023] Figure 3 It is a schematic diagram of the gas path arrangement of the device of the utility model.

[0024] In the figure, 1, bracket; 2, positioning platform; 21, support area; 22, sliding area; 221, adjustment slide; 222, groove; 3, support assembly; 31, transverse part; 32, longitudinal part; 33, L-shaped groove; 4, sliding support block; 41, mounting hole; 42, second air inlet hole; 43, branch air inlet channel; 5, placement hole; 6, air inlet joint; 61, adapter a; 7, first air inlet hole; 8, adapter air hole; 9, adapter b; 10, distribution air path channel; 101, main air inlet channel; 102, adapter air path channel. DETAILED DESCRIPTION

[0025] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention.

[0026] Example 1

[0027] This embodiment 1 provides a platform for positioning a flexible circuit board, such as Figure 1 as well as Figure 2 The platform for positioning the flexible circuit board shown includes a positioning table 2 and a bracket 1 supporting the positioning table. The positioning table 2 includes a support area 21 for supporting the support assembly 3 and a sliding area 22 for placing the sliding support block 4. The support area 21 is placed with the support assembly 3, and the sliding area 22 is placed with the sliding support block 4. The support assembly 3 includes a transverse portion 31 placed horizontally with the positioning table 2 and a longitudinal portion 32 for placing the flexible circuit board. The ends of the longitudinal portion 32 and the ends of the sliding support block 4 extend out of the table surface of the positioning table 2, and the portions extending out of the table surface can be used for camera shooting and imaging. A placement hole 5 is provided in the longitudinal portion 32 and the portion of the sliding support block 4 extending out of the table surface of the positioning table 2. There is an embedded suction cup in the placement hole 5. The suction cup is pressed into the installation method and does not require standard hardware. Under the negative pressure suction provided by the external negative pressure source, the longitudinal portion 32 and the placement hole 5 of the sliding support block 4 can firmly adsorb the flexible circuit board in the placement hole 5, reducing the possibility of inaccurate imaging caused by the movement of the flexible circuit board. At the same time, the sliding support blocks 4 at both ends of the support assembly 3 can move and can be adjusted according to the size of the flexible circuit board, so that the flexible circuit board can fit perfectly. The sliding support block 4 and the support assembly 3 of the utility model device can absorb the warped part through negative pressure adsorption, so that the warped part is restored, which can effectively reduce the problem of inaccurate detection caused by the warping of the component.

[0028] In order to make the sliding support block 4 slide stably, the sliding area 22 is a rectangular groove vertically opened downward from the surface of the positioning platform 2, wherein an adjustment slide 221 is provided near the end of the positioning platform 2 in the rectangular groove, and the adjustment slide 221 is aligned with the end of the positioning platform 2, and the adjustment slide 221 is in a long strip shape. When the sliding support block 4 is placed in the sliding area 22, the slide groove opened on the sliding support block 4 cooperates with the adjustment slide 221, and one end of the sliding support block 4 in the positioning platform fits with the inner wall of the sliding area 22 and slides along the inner wall of the sliding area 22. A pair of mounting holes 41 are provided on the sliding support block 4; bolts (not shown in the figure) are inserted into the mounting holes 41 and then penetrate the groove 222, and the bolts are fixed at the bottom of the groove 222 by nuts (not shown in the figure). The sliding area 22 for the sliding support block 4 to slide is provided, and the sliding area 22 is opened downward. After the sliding support block 4 is placed, the sliding support block 4 and the support assembly 3 can be located in the same horizontal plane. At the same time, the sliding area 22 can ensure that the sliding support block 4 moves smoothly by forming an adjustment slide 221, fitting one end of the sliding support block 4 to the inner side surface of the sliding area 22, and setting bolts.

[0029] An L-shaped groove 33 is formed between the transverse portion 31 and the longitudinal portion 32 of the support assembly 3. When the sliding support block 4 moves toward the support assembly 3 and fits with the support assembly 3, the sliding support block 4 fits in the L-shaped groove 33. The L-shaped groove 33 can limit the movement of the support assembly 3, and the end surface of the L-shaped groove 33 is aligned with the end surface of the support platform 21.

[0030] At the same time, in order to ensure the image capturing effect, the placement hole 5 on the sliding support block 4 and the support assembly 3 are on the same straight line, and the sliding support block 4 is made of transparent material, which will not affect the camera's image capturing. With the built-in negative pressure suction cup, the increase in the thickness of the support block caused by hardware can be reduced, and the refraction error caused by the thickness of the sliding support block 4 made of transparent material can be reduced. The transparent support block of the device of the utility model is divided into two parts. By moving and adjusting, the flexible circuit board can be placed in the middle of the flexible circuit board plug-in area, avoiding the suction cup being opaque and affecting the backlight effect.

[0031] The implementation principle of the device in this embodiment 1 to reduce the problem of inaccurate detection caused by component warping is: the flexible circuit board to be detected is carried by the support component 3 and the sliding support block 4 together, and multiple negative pressure holes located in the same straight line are set on the surface of the support component 3 and the sliding support block 4, and negative pressure suction cups are set inside the negative pressure holes. The flexible circuit board is adsorbed on the support component 3 and the sliding support block 4 by negative pressure, so that the inaccurate detection caused by the warping of the flexible circuit board during the detection process can be avoided. At the same time, when placing flexible circuit boards of different sizes, the sliding support blocks 4 on both sides of the support component 3 can be adjusted to fix the flexible circuit boards of different sizes before detection.

[0032] Example 2

[0033] Since the flexible circuit board is relatively thin, the negative pressure in the placement hole 5 may cause dents on the flexible circuit board product when the flexible circuit board is adsorbed, which not only affects the appearance but may also cause product defects. For this reason, in this embodiment 2, a dense mesh for air permeability may be placed at the opening of the placement hole 5, or a polytetrafluoroethylene breathable film may be used to cover the opening of the placement hole 5, so as to reduce the dents on the product surface caused by adsorption while ensuring air permeability.

[0034] Example 3

[0035] This embodiment 3 is a schematic diagram of the gas path arrangement of the utility model device. Figure 2 and Figure 3 , an air circuit is arranged in the sliding support block 4 and the support assembly 3; the air circuit includes a first air inlet hole 7 arranged in the transverse portion 31 of the support assembly 3, the first air inlet hole 7 is connected to a main air inlet channel 101 placed in the transverse portion 31, and the main air inlet channel 101 is connected to a distribution air path 10 arranged in the transverse portion 31, and the number of the main air inlet channels 101 arranged is consistent with the number of the placement holes 5 arranged on the longitudinal portion 32.

[0036] Any one of the main air intake channels 101 is connected to the air intake through an air intake connector 6, and the other two air intake channels are blocked by plugging wires when not in use to prevent air leakage. Generally, in order to ensure the air intake effect, the middle main air intake channel 101 is used for air intake. There are also two switching air passages 102 on the distribution air path 10, and the two switching air passages 102 are used to communicate with the branch air intake channels 10 on the sliding support block 4. An adapter a61 is installed on each of the two switching air passages 102, and the adapter a61 is inserted into the switching air hole 8 of the support assembly 3, and the redundant switching air holes 8 are blocked with plugging wires. A branch air inlet channel 43 is provided in the sliding support block 4, the branch air inlet channel 43 is communicated with the placement hole 5 provided on the sliding support block 4, the branch air inlet channel 43 is communicated with the second air inlet hole 42 provided on the side surface of the sliding support block 4, an adapter b9 is provided on the second air inlet hole 42, and the adapter a61 is connected to the adapter b9 through an air pipe. The connection method between the air pipe and the adapter is the prior art and will not be described in detail here.

[0037] One end of the distribution gas path channel 10 passes through the transverse portion 31, and the other end is inside the transverse portion 31. The side of the transverse portion 31 is provided with a transfer air hole 8 connected to the distribution gas path channel 10. The transfer air hole 8 on the side can also be used for gas path connection, but the transfer air hole 8 is not used in Example 3. In order not to affect the use of the device, the transfer air hole 8 on the side is sealed with a plugging wire.

[0038] The gas circuit in Example 3 is integrated into the support assembly 3 and the sliding support block 4, and has a simple structure and is easy to manufacture. At the same time, it can effectively reduce the defects of complex and unsightly pipelines caused by the construction of external gas circuits.

[0039] The above is a detailed introduction to a platform for positioning a flexible circuit board provided by the utility model. This article uses specific examples to illustrate the structure and working principle of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A platform for positioning a flexible circuit board, comprising a positioning table (2) and a support member (1) for supporting the positioning table (2), characterized in that: The positioning platform (2) is provided with a support assembly (3) and a sliding support block (4); The sliding support blocks (4) are arranged at both ends of the support assembly (3); The sliding support block (4) and the support assembly (3) both have a placement hole (5) for placing the flexible circuit board, and a negative pressure device is arranged in the placement hole (5).

2. A platform for positioning a flexible circuit board according to claim 1, characterized in that: The support assembly (3) comprises a transverse portion (31) and a longitudinal portion (32); the transverse portion (31) is parallel to the positioning platform (2), and the transverse portion (31) is aligned with the end of the positioning platform (2); and the sliding support block (4) is made of a transparent material.

3. A platform for positioning a flexible circuit board according to claim 2, characterized in that: The sliding support block (4) and one end of the longitudinal portion (32) of the support assembly (3) extend out of the positioning platform (2); A placement hole (5) is provided at the position where the sliding support block (4) and the support assembly (3) extend out of the positioning platform (2).

4. The platform for positioning a flexible circuit board according to claim 3, characterized in that: The sliding support block (4) and the placement holes (5) on the support assembly (3) are on the same straight line.

5. The platform for positioning a flexible circuit board according to claim 2, characterized in that: The positioning platform (2) comprises a supporting area (21) and a sliding area (22); The sliding support block (4) is placed in the sliding area (22); The sliding area (22) is a rectangular groove opened inward from the surface of the positioning platform (2); An adjustment slide (221) aligned with the end of the positioning platform (2) is provided at one end of the sliding area (22); The sliding support block (4) is clamped on the adjusting slide table (221), and one end of the sliding support block (4) is in contact with the end surface of the sliding area (22) away from the adjusting slide table (221).

6. A platform for positioning a flexible circuit board according to claim 5, characterized in that: The adjusting slide (221) is a long strip with a rectangular cross section. The sliding support block (4) is provided with a sliding groove that cooperates with the adjusting slide (221). The sliding groove cooperates with the adjusting slide (221) to achieve limited sliding.

7. The platform for positioning a flexible circuit board according to claim 5, characterized in that: The sliding area (22) is also provided with a groove (222) penetrating the positioning platform (2); The sliding support block (4) is provided with a pair of mounting holes (41); The bolt is inserted into the mounting hole (41) and then passes through the groove (222).

8. The platform for positioning a flexible circuit board according to claim 7, characterized in that: The bolt passes through the groove (222) and is fixed by a nut.

9. The platform for positioning a flexible circuit board according to claim 5, characterized in that: The lower end surface of the transverse portion (31) is aligned with the side end surface of the sliding area (22).

10. The platform for positioning a flexible circuit board according to claim 3, characterized in that: A negative pressure suction cup is arranged in the placement hole (5); The sliding support block (4) and the support assembly (3) are provided with an air path communicating with the negative pressure suction cup; The air circuit provided in the support component (3) is connected to an external negative pressure air source; the air circuit provided in the sliding support block (4) is communicated with the air circuit in the support component (3) via an air pipe.

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