Detection clamp convenient for detecting thickness of display screen FPC solder paste

Abstract

The utility model discloses a detection clamp convenient for detecting the thickness of solder paste of a display screen FPC. The detection clamp comprises a bearing plate and a detection limiting piece, the detection limiting piece comprises a mounting block and a detection limiting strip, the mounting block is arranged on the bearing plate, one end of the detection limiting strip is arranged on the mounting block, and the other end of the detection limiting strip extends in the direction away from the mounting block; the side face, facing the bearing plate, of the detection limiting strip is provided with a detection inclined face, a detection limiting gap is formed between the detection inclined face and the bearing plate, and the detection limiting gap is used for conducting limiting detection on the thickness of solder paste on the display screen FPC. Thus, the detection inclined plane is arranged on the detection limiting strip, the detection limiting gap is formed between the detection inclined plane and the bearing plate, and the thickness of the solder paste on the display screen FPC is rapidly detected through the detection limiting gap, so that the display screen FPC of which the thickness of the solder paste does not reach the standard can be rapidly screened out, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen production, in particular to a detection fixture which is convenient for detecting the thickness of FPC solder paste of a display screen. Background Art

[0002] The display module generally includes a display screen and a backlight module. The display screen FPC will be bound to the display screen, and the backlight FPC will be bound to the backlight module. When the whole machine is assembled and connected, the backlight FPC needs to be connected to the display screen FPC through a pressure welding process. Therefore, before pressure welding, a layer of solder paste needs to be applied on the backlight pad of the display screen FPC. In order to avoid reducing the binding effect of the backlight FPC due to too little or too much solder paste, the thickness of the solder paste needs to be monitored.

[0003] In view of the above, a detection fixture is proposed for facilitating detection of the thickness of the FPC solder paste of a display screen. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide a detection fixture for easily detecting the thickness of the solder paste of a display screen FPC, so that the display screen FPC with solder paste thickness that does not meet the standard can be quickly screened out, thereby improving production efficiency.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A detection fixture for facilitating detection of solder paste thickness of a display screen FPC comprises: a carrier plate and a detection limit member; the detection limit member comprises a mounting block and a detection limit strip, the mounting block is arranged on the carrier plate, one end of the detection limit strip is arranged on the mounting block, and the other end of the detection limit strip extends in a direction away from the mounting block; a detection inclined surface is arranged on a side surface of the detection limit strip facing the carrier plate, so that the thickness of the detection limit strip gradually increases from one side to the other side, and a detection limit gap is formed between the detection inclined surface and the carrier plate, and the detection limit gap is used for limit detection of the solder paste thickness on the display screen FPC.

[0007] In one embodiment, the width of the detection limit strip is greater than the width of the backlight pad on the display screen FPC.

[0008] In one embodiment, the supporting plate is an acrylic plate.

[0009] In one embodiment, the mounting block and the detection limit strip are both acrylic plates.

[0010] In one embodiment, the mounting block and the detection limit strip are an integrally formed structure.

[0011] In one embodiment, the supporting board is a bakelite supporting board.

[0012] In one embodiment, the mounting block is a bakelite mounting block.

[0013] In one of the embodiments, the mounting block and the bearing plate are connected and fixed via screws.

[0014] In one embodiment, a first mounting hole is formed on a side of the mounting block facing the supporting plate, and a second mounting hole is formed on a side of the supporting plate facing the mounting block, and the first mounting hole and the second mounting hole are connected and fixed by the screw connection.

[0015] In one embodiment, the threaded connection member is a bolt or a screw.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model is a detection fixture for detecting the thickness of solder paste on the display screen FPC. By setting a load plate and a detection limiter, the load plate is used to load and limit the display screen FPC, and the detection limiter is used to detect the thickness of the solder paste on the display screen FPC. Specifically, by setting a detection inclined surface on the detection limiter bar, and forming a detection limiter gap between the detection inclined surface and the load plate, the thickness of the solder paste on the display screen FPC is quickly detected through the detection limiter gap, so that the display screen FPC with solder paste thickness that does not meet the standard can be quickly screened out, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 It is a structural diagram of the display screen FPC;

[0020] Figure 2 A schematic diagram of a structure in which a detection fixture for detecting the thickness of solder paste on a display screen FPC is placed in an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a detection fixture for detecting the thickness of the FPC solder paste of a display screen in one embodiment of the utility model;

[0022] Figure 4 The figure is a schematic side view of the structure of a detection fixture for detecting the thickness of the FPC solder paste of a display screen in one embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] See also Figure 1 As shown, it is a structural diagram of a display screen FPC 20, and a backlight pad on the display screen FPC 20 is used to connect with the backlight FPC. The backlight pad needs to be pre-set with solder paste 21 in order to quickly detect the thickness of the solder paste 21. The utility model adopts the following technical solutions:

[0025] See also Figure 2 and 3 As shown, a detection fixture 10 for detecting the thickness of solder paste on a display screen FPC includes: a carrier plate 100 and a detection limit member 200; the detection limit member 200 includes a mounting block 210 and a detection limit strip 220, the mounting block 210 is arranged on the carrier plate 100, one end of the detection limit strip 220 is arranged on the mounting block 210, and the other end of the detection limit strip 220 extends in a direction away from the mounting block 210; a detection inclined surface 221 is arranged on one side of the detection limit strip 220 facing the carrier plate 100, so that the thickness of the detection limit strip 220 gradually increases from one side to the other side, and a detection limit gap 230 is formed between the detection inclined surface 221 and the carrier plate 100, and the detection limit gap 230 is used to perform limit detection on the thickness of the solder paste on the display screen FPC.

[0026] It should be noted that a detection inclined surface 221 is provided on one side of the detection limit strip 220 facing the carrier board 100, so that the thickness of the detection limit strip 220 gradually increases from one side to the other side, that is, the distance from the highest end 221a of the detection inclined surface 221 to the plane of the carrier board 100 is the maximum value of the solder paste thickness, and the distance from the lowest end 221b of the detection inclined surface 221 to the plane of the carrier board 100 is the minimum value of the solder paste thickness, then the detection limit gap 230 forms a qualified range of solder paste thickness; when detecting the solder paste thickness on the display screen FPC, first place the display screen FPC on the carrier board 100, and make the backlight pad correspond to the detection limit gap 230, with the highest end 221a of the detection inclined surface 221 as the starting end, and the lowest end 221b of the detection inclined surface 221 as the starting end. The lower end 221b is the terminal, and the display screen FPC is moved so that the solder paste on the backlight pad moves from the highest end 221a to the lowest end 221b. Three results will appear during the detection process: the first is when the solder paste on the backlight pad enters the detection limit gap 230 and cannot go out from the lowest end 221b, which means that the thickness of the solder paste on the backlight pad is within the qualified range and meets the thickness requirements, and is determined to be a good product; the second is when the solder paste on the backlight pad enters the detection limit gap 230, but goes out from the lowest end 221b, which means that the solder paste on the pad is too little and does not meet the thickness requirements, and is determined to be a defective product; the third is that the solder paste on the backlight pad cannot enter the detection limit gap 230 at all, which means that the solder paste thickness on the backlight pad is too high and does not meet the thickness requirements, and is determined to be a defective product. In this way, the solder paste thickness on the display screen FPC is quickly detected by detecting the limit gap 230, so that the display screen FPC with unsatisfactory solder paste thickness can be quickly screened out, thereby improving production efficiency.

[0027] Furthermore, the width of the detection limit strip 220 is greater than the thickness of the backlight pad on the display screen FPC. That is, the width of the detection limit gap 230 is greater than the width of the backlight pad, so that the solder paste on the backlight pad can completely enter the detection limit gap 230, so that the thickness of the solder paste at each position of the backlight pad can be detected in place.

[0028] Preferably, the carrying plate 100 is an acrylic plate.

[0029] Preferably, the mounting block 210 and the detection limit strip 220 are both acrylic plates.

[0030] Preferably, the mounting block 210 and the detection limit strip 220 are an integrally formed structure. That is, a corresponding mold can be used to form the mounting block 210 and the detection limit strip 220 into an integrally formed structure, so that there is no installation error between the mounting block 210 and the detection limit strip 220, thereby improving the accuracy of the detection result.

[0031] Preferably, the carrier board 100 is a bakelite carrier board 100. The bakelite material has high mechanical strength and strong wear resistance, so the service life of the clamp can be ensured.

[0032] Preferably, the mounting block 210 is a bakelite mounting block 210. Similarly, the detection limit strip 220 is also a bakelite mounting block 210. The bakelite material has high mechanical strength and strong wear resistance, so the service life of the clamp can be ensured.

[0033] In one embodiment, the mounting block 210 and the carrier plate 100 are connected and fixed by a screw connection. Specifically, the mounting block 210 has a first mounting hole on one side facing the carrier plate 100, and the carrier plate 100 has a second mounting hole on one side facing the mounting block 210, and the first mounting hole and the second mounting hole are connected and fixed by a screw connection. For example, the screw connection is a bolt or a screw.

[0034] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A detection fixture for detecting the thickness of FPC solder paste of a display screen, characterized in that: include: Loading plate; A detection limiter, wherein the detection limiter comprises a mounting block and a detection limiter strip, wherein the mounting block is disposed on the carrier plate, one end of the detection limiter strip is disposed on the mounting block, and the other end of the detection limiter strip extends in a direction away from the mounting block; A detection inclined surface is provided on one side of the detection limit strip facing the carrier plate, so that the thickness of the detection limit strip gradually increases from one side to the other side, and a detection limit gap is formed between the detection inclined surface and the carrier plate, and the detection limit gap is used to perform limit detection on the solder paste thickness on the display screen FPC.

2. The detection fixture for detecting the thickness of the FPC solder paste of the display screen according to claim 1 is characterized in that: The width of the detection limit strip is greater than the width of the backlight pad on the display screen FPC.

3. The detection fixture for detecting the thickness of FPC solder paste of display screen according to claim 1 is characterized in that: The bearing plate is an acrylic plate.

4. The detection fixture for detecting the thickness of FPC solder paste of a display screen according to claim 3 is characterized in that: The mounting block and the detection limit strip are both acrylic plates.

5. The detection fixture for detecting the thickness of FPC solder paste of a display screen according to claim 4 is characterized in that: The mounting block and the detection limit strip are an integrally formed structure.

6. The detection fixture for detecting the thickness of FPC solder paste of display screen according to claim 1, characterized in that: The bearing plate is a bakelite bearing plate.

7. The detection fixture for detecting the thickness of the FPC solder paste of the display screen according to claim 6 is characterized in that: The mounting block is a bakelite mounting block.

8. The detection fixture for detecting the thickness of FPC solder paste of a display screen according to claim 1, characterized in that: The mounting block and the bearing plate are connected and fixed via screws.

9. The detection fixture for detecting the thickness of FPC solder paste of a display screen according to claim 8, characterized in that: A first mounting hole is formed on a side of the mounting block facing the supporting plate, and a second mounting hole is formed on a side of the supporting plate facing the mounting block. The first mounting hole and the second mounting hole are connected and fixed by the screw connection.

10. The detection fixture for detecting the thickness of FPC solder paste of a display screen according to claim 9, characterized in that: The threaded connection member is a bolt or a screw.

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