Laser coding jig for FPC (Flexible Printed Circuit) board

Abstract

The utility model relates to the field of camera module manufacturing, and discloses an FPC board laser coding jig which comprises a bottom plate, the top face of the bottom plate is fixedly connected with a limiting plate, the inner side of the limiting plate is in contact with a chip board, and the front face of the chip board is fixedly connected with a laser printing plate through an FPC connecting plate. A cover plate is detachably connected to the top of the bottom plate through a fixing assembly, a fixing groove is formed in the cover plate, pressing plates are fixedly connected to the inner walls of the front side and the rear side of the fixing groove correspondingly, a sliding rod is slidably connected to the interior of the cover plate, limiting grooves are formed in the left end and the right end of the sliding rod correspondingly, and elastic assemblies are arranged in the limiting grooves. According to the utility model, through the arrangement of the positioning groove, the deflector rod and the limiting spring, the deflector rod is poked inwards to release the limiting of the sliding rod, and the sliding rod slides up and down to flatten the FPC connecting plate, so that the FPC connecting plate does not have creases and circuit breakage in the fixing process of the jig, and the product quality is ensured.

Description

Technical Field

[0001] The utility model relates to the field of camera module production, in particular to an FPC board laser coding jig. Background Art

[0002] A camera module is a modular product that integrates key components such as lenses, image sensors, and circuit boards. It is primarily used to capture real-world images and videos and convert them into electrical signals for transmission and processing. It is widely used in mobile phones, computers, security monitoring, smart homes, and other fields, providing image and video acquisition, processing, transmission, and camera control.

[0003] When manufacturing camera modules, the first step is to precisely engrave a mark on the surface of the FPC board. This code typically contains relevant information about the camera module, such as the manufacturer, model, and production date. This is crucial for camera module identification, use, maintenance, and manufacturer traceability. For this purpose, an FPC board laser coding jig is required.

[0004] Current FPC board laser coding jigs usually use an upper cover and a lower cover to fix the FPC board inside the jig. However, in actual use, since the FPC board is a flexible circuit board, when the upper and lower covers are directly closed, part of the FPC board will bend, resulting in creases, and may even cause the circuit inside the FPC board to break. Therefore, an FPC board laser coding jig is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an FPC board laser encoding jig, which aims to improve the problem of creases caused by direct fixation of flexible circuit boards in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an FPC board laser coding jig comprises a base plate, the top surface of the base plate is fixedly connected to a limiting plate, the inner side of the limiting plate contacts a chip board, the front side of the chip board is fixedly connected to a laser printing board through an FPC connecting plate, the top of the base plate is detachably connected to a cover plate through a fixing component, a fixing groove is provided inside the cover plate, the inner walls of the front and rear sides of the fixing groove are fixedly connected to a pressure plate, a sliding rod is slidably connected to the cover plate, limiting grooves are provided at both ends of the sliding rod, an elastic component is arranged inside the limiting groove, a positioning groove is provided at the top of the cover plate, and a positioning hole is provided inside the cover plate.

[0007] As a further description of the above technical solution:

[0008] The fixed component includes a sliding sleeve, a rectangular groove is provided on the outer periphery of the sliding sleeve, a rounded corner sliding groove is provided on the inner wall of the side surface of the rectangular groove, a sliding column is slidably connected inside the rounded corner sliding groove, a limiting elastic sheet is fixedly connected to the outer periphery of the sliding column, and a sliding column is fixedly connected to the inner side of the limiting elastic sheet.

[0009] As a further description of the above technical solution:

[0010] The inner side of the fixed groove is in contact with the outer side of the limiting plate, and the bottom surfaces of the chip board, the FPC connecting board and the laser printing board are all placed on the top surface of the bottom plate.

[0011] As a further description of the above technical solution:

[0012] The bottom of the front pressing plate is in contact with the top surface of the laser printing board, the bottom of the rear pressing plate is in contact with the top surface of the chip board, and the bottom end of the sliding rod is in contact with the top surface of the FPC connecting board.

[0013] As a further description of the above technical solution:

[0014] The elastic component includes a limiting spring, one end of the inner side of the limiting spring is fixedly connected to the inner side of the limiting groove, one end of the outer side of the limiting spring is fixedly connected with a shifting lever, and the outer periphery of the shifting lever is slidably connected inside the limiting groove.

[0015] As a further description of the above technical solution:

[0016] The outer periphery of the shifting lever is slidably connected inside the positioning groove, and the positioning groove is in a "C" shape.

[0017] As a further description of the above technical solution:

[0018] The outer periphery of the sliding sleeve is slidably connected inside the positioning hole, and the outer periphery of the sliding column is slidably connected inside the sliding sleeve.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the limiting elastic sheet is hinged on the inner wall of the side surface of the rectangular groove, and the bottom surface of the limiting elastic sheet is in contact with the top surface of the positioning hole.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by arranging the positioning groove, the shifting lever and the limiting spring, the shifting lever is inwardly拨动 to解除 the limit on the sliding rod, and at the same time, the sliding rod is slid up and down, so that the sliding rod flattens the FPC connecting board, so that during the fixing process of the jig, the FPC connecting board will not have creases and circuit breaks, ensuring the quality of the product.

[0023] 2. In the present invention, by providing a limiting spring piece, a sliding sleeve, and a sliding column, the sliding column is lifted upwards to retract the limiting spring piece into the interior of the rectangular groove, and then the cover plate is covered and the sliding column is loosened to conveniently fix the cover plate. The assembly and disassembly is relatively convenient and the use is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall top surface of an FPC board laser encoding fixture proposed by the present invention;

[0025] Figure 2 This is a front view of the bottom plate of an FPC board laser encoding jig proposed by the present invention;

[0026] Figure 3 This is a partial schematic diagram of the front cross-section of a sliding rod of an FPC board laser encoding jig proposed by the present invention;

[0027] Figure 4 This is a front cross-sectional schematic diagram of a sliding sleeve of an FPC board laser encoding fixture proposed by the present invention.

[0028] Legend:

[0029] 1. Bottom plate; 2. Limit plate; 3. Chip board; 4. FPC connecting plate; 5. Laser printed board; 6. Cover plate; 7. Fixing slot; 8. Pressure plate; 9. Sliding rod; 10. Limit slot; 11. Limit spring; 12. Push rod; 13. Positioning slot; 14. Positioning hole; 15. Sliding sleeve; 16. Rectangular slot; 17. Rounded slide slot; 18. Sliding column; 19. Limiting spring; 20. Sliding column. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 2, an embodiment provided by the utility model: an FPC board laser coding fixture, including a bottom plate 1 for fixing the product. A limiting plate 2 is fixedly connected to the top surface of the bottom plate 1. The limiting plate 2 is L-shaped and is used to locate the position of the chip. The inner side of the limiting plate 2 contacts a chip board 3. The bottom surface of the chip board 3 is used for welding and fixing the camera and its module. The front surface of the chip board 3 is fixedly connected to a laser printing board 5 through an FPC connecting board 4. The laser printing board 5 is used for printing a two-dimensional code, and the two-dimensional code contains relevant information about the camera module, which is convenient for identifying the camera module. The bottom surfaces of the chip board 3, the FPC connecting board 4, and the laser printing board 5 are all placed on the top surface of the bottom plate 1. The top of the bottom plate 1 is detachably connected to a cover plate 6 for fixing the product through a fixing component. A fixing groove 7 is opened inside the cover plate 6. The inner side of the fixing groove 7 contacts the outer side of the limiting plate 2. Both the front and rear inner walls of the fixing groove 7 are fixedly connected with pressing plates 8. The bottom of the front pressing plate 8 contacts the top surface of the laser printing board 5, and the bottom of the rear pressing plate 8 contacts the top surface of the chip board 3. The pressing plates 8 fix the product between the bottom plate 1 and the cover plate 6.

[0032] Refer to Figure 1 and Figure 3 , a sliding rod 9 is slidably connected inside the cover plate 6. There are two groups of sliding rods 9, and the two groups of sliding rods 9 are symmetrically arranged front and rear. The bottom end of the sliding rod 9 contacts the top surface of the FPC connecting board 4. By sliding the sliding rod 9 back and forth, the wrinkles on the FPC connecting board 4 can be smoothed. Limiting grooves 10 are opened at both the left and right ends of the sliding rod 9. An elastic component is arranged inside the limiting grooves 10. The elastic component includes a limiting spring 11. The inner end of the limiting spring 11 is fixedly connected to the inner side of the limiting groove 10. The outer end of the limiting spring 11 is fixedly connected to a dial rod 12. When the dial rod 12 is not stressed, the limiting spring 11 will push the dial rod 12 outwards. The outer circumference of the dial rod 12 is slidably connected inside the limiting groove 10. The limiting groove 10 restricts the dial rod 12 to only slide left and right along the inner wall of the limiting groove 10. A positioning groove 13 is opened at the top end of the cover plate 6. The positioning groove 13 is in a "匚" shape. The outer circumference of the dial rod 12 is slidably connected inside the positioning groove 13. The positioning groove 13 restricts the dial rod 12 to only slide along the inner wall of the positioning groove 13. When the dial rod 12 is at the protrusions on the front and rear sides of the positioning groove 13, the limiting spring 11 will push the dial rod 12 outwards, so that the dial rod 12 is stuck at the protrusions of the positioning groove 13. Four positioning holes 14 are opened inside the cover plate 6, and they are symmetrically distributed at the four corners of the cover plate 6. The top surface of the positioning hole 14 is set as an inclined surface.

[0033] Refer to Figure 1 , Figure 2 and Figure 4The fixing assembly includes a sliding sleeve 15 that plays a fixed connection role. The outer periphery of the sliding sleeve 15 is slidably connected to the inside of the positioning hole 14 to position the cover plate 6. A rectangular groove 16 is provided on the outer periphery of the sliding sleeve 15. There are four groups of rectangular grooves 16, which are evenly distributed on the outer periphery of the sliding sleeve 15. A rounded groove 17 is provided on the inner wall of the side of the rectangular groove 16. There are two groups of rounded grooves 17, which are symmetrically arranged on the inner walls of both sides of the rectangular groove 16. A sliding column 18 is slidably connected to the inside of the rounded groove 17. The rounded groove 17 limits the sliding column 18 to only move along the rounded groove The inner wall of 17 slides up and down, and the outer periphery of the sliding column 18 is fixedly connected to a limiting spring piece 19. The limiting spring piece 19 is V-shaped and has a certain elasticity. It can be deformed and generate elastic force under the action of external force. The bottom end of the limiting spring piece 19 is hinged on the inner wall of the side of the rectangular groove 16. The bottom surface of the limiting spring piece 19 contacts the top surface of the positioning hole 14 to fix the cover plate 6. The inner side of the limiting spring piece 19 is fixedly connected to the sliding column 20. The outer periphery of the sliding column 20 is slidably connected to the inside of the sliding sleeve 15. The sliding sleeve 15 limits the sliding column 20 to only slide up and down along the inner wall of the sliding sleeve 15.

[0034] Working principle: When you want to fix the camera module chip, place the chip board 3, FPC connecting board 4 and laser printed board 5 on the base plate 1, so that the chip board 3 and the laser printed board 5 are respectively placed on the inner side of a set of limit plates 2. At this time, cover the cover plate 6 and fix it with a fixing assembly, push the lever 12 inward to make the lever 12 slide inward along the limit groove 10 and slide out from the inner protrusion of the positioning groove 13, and slide the front sliding rod 9 forward and the rear sliding rod 9 backward. When the sliding rod 9 is located at the protrusion outside the positioning groove 13, release the lever 12. The lever 12 moves outward under the action of the limit spring 11 and is stuck in the protrusion outside the positioning groove 13, so that the flexible circuit board is partially smoothed by the sliding rod 9 to prevent creases on the FPC connecting board 4. When you want to conveniently fix the cover 6, lift the sliding column 20 upwards, and the sliding column 20 drives the top of the limiting spring piece 19 to move upward, so that the limiting spring piece 19 is retracted into the inside of the rectangular groove 16. At this time, slide down into the cover 6, loosen the sliding column 20, and the limiting spring piece 19 releases the compression and engages with the positioning hole 14, thereby conveniently fixing the cover 6.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser coding jig for FPC boards, comprising a base plate (1), characterized in that: A limiting plate (2) is fixedly connected to the top surface of the bottom plate (1). A chip board (3) is in contact with the inner side of the limiting plate (2). The front surface of the chip board (3) is fixedly connected to a laser printing board (5) through an FPC connecting board (4). A cover plate (6) is detachably connected to the top of the bottom plate (1) through a fixing component. A fixing groove (7) is formed inside the cover plate (6). Pressing plates (8) are fixedly connected to the inner walls of the front and rear sides of the fixing groove (7). A sliding rod (9) is slidably connected inside the cover plate (6). Limiting grooves (10) are formed at both the left and right ends of the sliding rod (9). An elastic component is arranged inside the limiting grooves (10). A positioning groove (13) is formed at the top end of the cover plate (6). A positioning hole (14) is formed inside the cover plate (6).

2. The FPC board laser coding jig according to claim 1, characterized in that: The fixing component includes a sliding sleeve (15). A rectangular groove (16) is formed on the outer circumference of the sliding sleeve (15). A rounded corner sliding groove (17) is formed on the inner wall of the side surface of the rectangular groove (16). A sliding column (18) is slidably connected inside the rounded corner sliding groove (17). A limiting elastic piece (19) is fixedly connected to the outer circumference of the sliding column (18). A sliding column (20) is fixedly connected to the inner side of the limiting elastic piece (19).

3. The FPC board laser coding jig according to claim 1, characterized in that: The inner side of the fixing groove (7) is in contact with the outer side of the limiting plate (2). The bottom surfaces of the chip board (3), the FPC connecting board (4), and the laser printing board (5) are all placed on the top surface of the bottom plate (1).

4. The FPC board laser coding jig according to claim 1, characterized in that: The bottom of the front pressing plate (8) is in contact with the top surface of the laser printing board (5). The bottom of the rear pressing plate (8) is in contact with the top surface of the chip board (3). The bottom end of the sliding rod (9) is in contact with the top surface of the FPC connecting board (4).

5. The FPC board laser coding jig according to claim 1, characterized in that: The elastic component includes a limiting spring (11). One end of the inner side of the limiting spring (11) is fixedly connected to the inner side of the limiting groove (10). One end of the outer side of the limiting spring (11) is fixedly connected to a shifting rod (12). The outer circumference of the shifting rod (12) is slidably connected inside the limiting groove (10).

6. The FPC board laser coding jig according to claim 5, characterized in that: The outer circumference of the shifting rod (12) is slidably connected inside the positioning groove (13). The positioning groove (13) is in an "L" shape.

7. The FPC board laser coding jig according to claim 2, characterized in that: The outer circumference of the sliding sleeve (15) is slidably connected inside the positioning hole (14). The outer circumference of the sliding column (20) is slidably connected inside the sliding sleeve (15).

8. The FPC board laser coding jig according to claim 2, characterized in that: The bottom end of the limiting elastic piece (19) is hinged to the inner wall of the side surface of the rectangular groove (16). The bottom surface of the limiting elastic piece (19) is in contact with the top surface of the positioning hole (14).

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