Mobile phone FPC assembling machine

By combining the gantry XY module and the side camera module, position and angle correction and pressure closed-loop confirmation were achieved during the FPC assembly process, solving the problem of FPC bending and breakage in the FPC assembly machine, and improving assembly quality and equipment capacity.

CN119260342AActive Publication Date: 2025-01-07SHENZHEN ZHISAI PRECISION EQUIP CO LTD

Patent Information

Application Number
CN202411589019.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-01-07
Estimated Expiration
2044-11-08

AI Technical Summary

Technical Problem

Existing FPC assembly machines are prone to causing excessive bending angles in the FPC during the assembly process, leading to breakage.

Method used

By employing a gantry XY module and a side camera module, precise FPC assembly is achieved through position and angle correction and pressure closed-loop confirmation, combined with the collaborative work of multiple modules.

Benefits of technology

It improved the quality of FPC assembly and the working capacity of the equipment, and solved the problem of excessive bending of FPC.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a mobile phone FPC assembling machine, and relates to the technical field of 3C product assembling. The mobile phone FPC assembling machine comprises an FPC assembling machine body, a feeding and discharging single-double-rail switching module, an FPC bending module, a film tearing module, an FPC turn-over module, a side camera module, a gantry XY module and a reinspection row NG module are arranged in the FPC assembling machine body, and the feeding and discharging single-double-rail switching module comprises a first mounting frame; a first synchronous belt module, a long-edge feeding rail, a first stepping motor, a jacking rotating mechanism and a round belt conveying line are arranged on the outer surface of the first mounting frame, the FPC bending module comprises a second stepping motor, a third stepping motor, a material taking air cylinder and a second synchronous belt module, and a suction nozzle is arranged on the outer surface of the material taking air cylinder; the side camera and prism photographing technology is adopted, the problems that a single-head FPC is difficult to photograph and the FPC is too large in bending degree in the photographing process are solved, the working mode that double tracks work alternately is adopted, and the working capacity of the whole equipment is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of 3C product assembly, in particular to a mobile phone FPC assembly machine. Background Art

[0002] FPC is a flexible printed circuit board, also known as a soft circuit board or soft board. FPC is a printed circuit board made of a flexible insulating substrate (mainly polyimide or polyester film). It has many advantages that rigid printed circuit boards do not have. It has high reliability, can be bent, wound, and folded freely, and can withstand millions of dynamic bending without damaging the wires. This feature allows FPC to be arbitrarily arranged according to spatial layout requirements, and to move and stretch arbitrarily in three-dimensional space, thereby realizing the integration of component assembly and wire connection. These characteristics of FPC make it very useful in the design of electronic products, especially in electronic products that require high density, miniaturization, and high reliability. With the development of science and technology, 3C products such as mobile phones have been applied to all aspects of society and play an increasingly important role in daily life. 3C products such as mobile phones need to assemble FPC during the production process.

[0003] The conventional practice of existing FPC assembly machines is to directly clamp the FPC with a clamp, move it to the side of the mobile phone to position the lower camera for taking pictures, and then fasten the camera snap points on the mainboard. Through this assembly method, during the process of fastening the FPC, the FPC may be bent too much, which may easily cause the FPC to break. Summary of the invention

[0004] In view of the deficiencies of the existing problems, the present invention provides a mobile phone FPC assembly machine to solve the existing problems raised in the above background technology.

[0005] To solve the above problems, the present invention is implemented through the following technical solutions: a mobile phone FPC assembly machine, including an FPC assembly machine, wherein the interior of the FPC assembly machine is provided with a single-track and double-track switching module for loading and unloading, an FPC bending module, a film tearing module, an FPC flipping module, a side camera module, a gantry XY module and a re-inspection and NG sorting module, wherein the single-track and double-track switching module for loading and unloading includes a first mounting frame, and the outer surface of the first mounting frame is provided with a first synchronous belt module, a long side feeding track, a first stepping motor, a jacking and rotating mechanism and a round belt conveyor line, the FPC bending module includes a second stepping motor, a third stepping motor, a material picking cylinder and a second synchronous belt module, the outer surface of the material picking cylinder is provided with a suction nozzle, the outer surface of the second synchronous belt module is provided with a guide smoothing rod and a guide rod, the film tearing module includes a second mounting frame and a discarded film bin, the outer surface of the second mounting frame is provided with a synchronous belt module, and the outer surface of the synchronous belt module is provided with a lifting middle threaded rod Module, the outer surface of the lifting middle-through screw module is provided with a side insertion cylinder and a film tearing detection color sensor, the outer surface of the side insertion cylinder is provided with a first clamping claw cylinder, the FPC flipping module includes a fourth stepping motor and a third synchronous belt module, the outer surface of the third synchronous belt module is provided with a hollow rubber strip, the side camera module includes a third mounting frame and a prism, the outer surface of the third mounting frame is provided with a camera body, a screw motor and an FPC receiving plate, the gantry XY module includes a fourth mounting frame, the bottom of the fourth mounting frame is provided with a linear module Y axis, the bottom of the linear module Y axis is provided with a linear module X axis, and the bottom of the linear module X axis is provided with a first Z axis and a second Z axis, the re-inspection and NG sorting module includes a fifth mounting frame and an NG conveyor line, the outer surface of the fifth mounting frame is provided with a fifth stepping motor and a fourth synchronous belt module, and the outer surface of the fourth synchronous belt module is provided with a rotating motor, a height measuring sensor and a lifting cylinder.

[0006] Preferably, two groups of the material taking cylinder, the guide smoothing rod and the second synchronous belt module are provided.

[0007] Preferably, a first clamping jaw body is provided at the output end of the first clamping jaw cylinder, and the first clamping jaw body is arranged above the waste film bin.

[0008] Preferably, a rotating R axis and a pressure sensor are provided on the outer surface of the first Z axis, an upper camera is provided on the outer surface of the second Z axis, and a second clamping jaw body is provided at the output end of the rotating R axis.

[0009] Preferably, a second clamping cylinder is provided at the output end of the lifting cylinder, and the second clamping cylinder is arranged just above the NG conveying line.

[0010] The present invention provides a mobile phone FPC assembly machine, which has the following beneficial effects:

[0011] 1. The mobile phone FPC assembly machine, through the gantry XY module and the side camera module, can realize the position angle correction during the movement by using the gantry XY module, and form a pressure closed loop through the pressure sensor after the FPC contacts the fastening point to confirm whether the fastening pressure has been reached. At the same time, the side camera plus prism photography technology of the side camera module solves the difficulty of single-head FPC photography and the problem of excessive bending of FPC during photography, thereby improving the processing quality of the FPC assembly machine.

[0012] Second, the mobile phone FPC assembly machine, through the coordination between the loading and unloading single-track and double-track switching module, FPC bending module, film tearing module, FPC flipping module, side camera module, gantry XY module and re-inspection and NG sorting module, uses the lifting and rotating mechanism in the loading and unloading single-track and double-track switching module to change the feeding direction, so that the first synchronous belt module feeds different tracks, and then the subsequent modules cooperate for assembly, adopting a double-track alternating working mode, which improves the working capacity of the whole equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a structural schematic diagram of the single-track and double-track switching module for loading and unloading of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the FPC bending module of the present invention;

[0016] Figure 4 It is a structural schematic diagram of the film tearing module of the present invention;

[0017] Figure 5 This is a structural diagram of the FPC flip module of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the side camera module of the present invention;

[0019] Figure 7 It is a structural schematic diagram of the gantry XY module of the present invention;

[0020] Figure 8 It is a structural schematic diagram of the re-inspection and NG elimination module of the present invention.

[0021] In the figure: 1. FPC assembly machine; 2. Single and double track switching module for loading and unloading; 201. First synchronous belt module; 202. Long side feeding track; 203. First stepper motor; 204. Lifting and rotating mechanism; 205. Round belt conveyor line; 206. First mounting frame; 3. FPC bending module; 301. Second stepper motor; 302. Third stepper motor; 303. Material taking cylinder; 304. Suction nozzle; 305. Guide smoothing rod; 306. Guide rod; 307. Second synchronous belt module; 4. Film tearing module; 401. Synchronous belt module; 402. Lifting screw rod module; 403. Side insertion cylinder; 404. First clamping claw cylinder; 405. Film discarding bin; 406. Film tearing detection color sensor; 407. First clamping claw body; 408. Second mounting frame; 5. FPC flipping module; 501, fourth stepper motor; 502, hollow rubber strip; 503, third synchronous belt module; 6, side camera module; 601, camera body; 602, lead screw motor; 603, prism; 604, FPC receiving plate; 605, third mounting bracket; 7, gantry XY module; 701, linear module Y axis; 702, linear module X axis; 703, rotating R axis; 704, second gripper body; 705, first Z axis; 706, pressure sensor; 707, upper camera; 708, second Z axis; 709, fourth mounting bracket; 8, re-inspection and NG sorting module; 801, fifth stepper motor; 802, NG conveyor line; 803, rotating motor; 804, height sensor; 805, lifting cylinder; 806, second gripper cylinder; 807, fifth mounting bracket; 808, fourth synchronous belt module. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0023] Example 1

[0024] like Figure 1-Figure 8As shown, the present invention provides a technical solution: a mobile phone FPC assembly machine, including an FPC assembly machine 1, the FPC assembly machine 1 is internally provided with a loading and unloading single-track double-track switching module 2, an FPC bending module 3, a film tearing module 4, an FPC flipping module 5, a side camera module 6, a gantry XY module 7 and a re-inspection and NG sorting module 8, the loading and unloading single-track double-track switching module 2 includes a first mounting frame 206, and the outer surface of the first mounting frame 206 is provided with a first synchronous belt module 201, a long side feeding track 202, a first stepping motor 203, a jacking and rotating mechanism 204 and a round belt The conveyor line 205, the FPC bending module 3 includes a second stepper motor 301, a third stepper motor 302, a material taking cylinder 303 and a second synchronous belt module 307, the outer surface of the material taking cylinder 303 is provided with a suction nozzle 304, the outer surface of the second synchronous belt module 307 is provided with a guide smoothing rod 305 and a guide rod 306, the film tearing module 4 includes a second mounting frame 408 and a discarded film bin 405, the outer surface of the second mounting frame 408 is provided with a synchronous belt module 401, the outer surface of the synchronous belt module 401 is provided with a lifting middle screw rod module 402, and the lifting middle screw rod module The outer surface of 402 is provided with a side insertion cylinder 403 and a film tearing detection color sensor 406, the outer surface of the side insertion cylinder 403 is provided with a first clamping claw cylinder 404, the FPC flip module 5 includes a fourth stepping motor 501 and a third synchronous belt module 503, the outer surface of the third synchronous belt module 503 is provided with a hollow rubber strip 502, the side camera module 6 includes a third mounting bracket 605 and a prism 603, the outer surface of the third mounting bracket 605 is provided with a camera body 601, a screw motor 602 and an FPC receiving plate 604, the gantry XY module 7 includes a fourth mounting bracket The fourth mounting frame 709 is provided with a linear module Y-axis 701 at the bottom, the linear module X-axis 702 is provided at the bottom of the linear module Y-axis 701, the first Z-axis 705 and the second Z-axis 708 are provided at the bottom of the linear module X-axis 702, the re-inspection and NG sorting module 8 includes a fifth mounting frame 807 and an NG conveyor line 802, the outer surface of the fifth mounting frame 807 is provided with a fifth stepping motor 801 and a fourth synchronous belt module 808, and the outer surface of the fourth synchronous belt module 808 is provided with a rotating motor 803, a height measuring sensor 804 and a lifting cylinder 805.

[0025] Specifically, two groups of the material taking cylinder 303 , the guide smoothing rod 305 and the second synchronous belt module 307 are provided.

[0026] Specifically, the output end of the first clamping jaw cylinder 404 is provided with a first clamping jaw body 407 , and the first clamping jaw body 407 is arranged above the waste film bin 405 .

[0027] Specifically, a rotating R-axis 703 and a pressure sensor 706 are disposed on the outer surface of the first Z-axis 705 , an upper camera 707 is disposed on the outer surface of the second Z-axis 708 , and a second clamp body 704 is disposed on the output end of the rotating R-axis 703 .

[0028] Specifically, a second clamping cylinder 806 is provided at the output end of the lifting cylinder 805 , and the second clamping cylinder 806 is arranged directly above the NG conveying line 802 .

[0029] When in use, the working mode of each module is that the long-side feeding of the product flows into the long-side feeding track 202, powered by the first stepper motor 203, flows into the round belt conveyor line 205, is lifted and rotated by the lifting and rotating mechanism 204 to become short-side feeding, and the product with changed feeding direction passes through the first synchronous belt module 201 to feed different tracks, and the discharging action is the opposite. The materials from different tracks change direction and flow out through the lifting and rotating mechanism 204. The product flows into station one through the track, and is driven by the second stepper motor 301 and the third stepper motor 302 to drive the second synchronous belt modules 307 on both sides respectively. The material taking cylinder 303 sucks the FPC obliquely, and the guide smoothing rod 305 turns the FPC over. The product flows into the guide rod 306 for constraint. This action is performed alternately, and the product flows into the second station through the track. The side cylinder side clamp positions the product, and the synchronous belt module 401 drives the first clamping cylinder 404 and the film tearing detection color sensor 406 to move left and right. When tearing the film, the synchronous belt module 401 moves the first clamping jaw body 407 on the first clamping jaw cylinder 404 to the side of the product film tearing position, and the lifting middle screw rod module 402 is lowered. The side insertion cylinder 403 inserts the first clamping jaw body 407 into the first tearing position, and the first clamping jaw cylinder 404 is closed again. The synchronous belt module 401 moves, and the film tearing detection color sensor 406 detects whether the film is torn off. The synchronous belt module 401 throws the waste film into the waste film bin 405. The two tracks perform this action alternately, and the product flows into the station through the track. Third, the FPC is separated from the guide rod 306, and the third synchronous belt module 503 driven by the fourth stepper motor 501 drives the hollow rubber strip 502 to move horizontally, and the friction between the FPC and the hollow rubber strip 502 is used to smooth the FPC, and the product flows into the third station through the track, and the camera body 601 is moved to the photo position by the screw motor 602, and the prism 603 is inserted under the FPC for taking pictures. The FPC receiving plate 604 plays the role of connecting the FPC and shaping the FPC, and the product flows into the third station through the track, and the upper camera 707 is moved to the photo point by the linear module Y axis 701 and the linear module X axis 702 for taking pictures, and the second clamp body 704 and the upper camera 707 are moved to the top of the FPC by the linear module Y axis 701, and the first Z axis 705 descends to move the FP The C steel sheet is sucked up, and the second clamp body 704 is closed, waiting for the side camera to take pictures and position. After taking pictures, correction is performed. The second clamp body 704 is moved to the engagement position by the linear module Y axis 701, the linear module X axis 702 and the rotating R axis 703. Position angle correction is performed during the movement. The second Z axis 708 descends while the first Z axis 705 descends to contact the FPC with the engagement point. At this time, the second clamp body 704 is released, and the first Z axis 705 continues to descend. A pressure closed loop is formed through the pressure sensor 706 to confirm whether the engagement pressure has been reached. After the engagement is completed, the first Z axis 705 and the second Z axis 708 are lifted, and the upper camera 707 is moved to the top of another track to take pictures. The above actions are repeated to achieve alternating engagement of the two tracks.The product flows into station 4 through the track, and the side cylinder side clamp positions the product. The fourth synchronous belt module 808 driven by the fifth stepper motor 801 drives the height sensor 804 to the height measurement point to test the relative height of the product. If the relative height is at a reasonable value, the fourth synchronous belt module 808 driven by the fifth stepper motor 801 moves the second clamping claw cylinder 806 to the top of the product, the lifting cylinder 805 descends, and the second clamping claw cylinder 806 closes, placing the product in the NG conveyor line 802. Repeat the above actions to alternately detect the two tracks.

[0030] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A mobile phone FPC assembly machine, comprising an FPC assembly machine (1), characterized in that: The FPC assembly machine (1) is internally provided with a loading and unloading single-track and double-track switching module (2), an FPC bending module (3), a film tearing module (4), an FPC flipping module (5), a side camera module (6), a gantry XY module (7) and a re-inspection and NG sorting module (8); the loading and unloading single-track and double-track switching module (2) comprises a first mounting frame (206); the outer surface of the first mounting frame (206) is provided with a first synchronous belt module (201), a long side feeding track (202), a first stepping motor (203), a lifting and rotating mechanism (204) and a round belt conveyor line (205); the FPC bending module (3) comprises a second stepping motor (301), a third stepping motor (302), a first stepping motor (203), a lifting and rotating mechanism (204) and a round belt conveyor line (205); A stepper motor (302), a material taking cylinder (303) and a second synchronous belt module (307), the outer surface of the material taking cylinder (303) is provided with a suction nozzle (304), the outer surface of the second synchronous belt module (307) is provided with a guide smoothing rod (305) and a guide rod (306), the film tearing module (4) includes a second mounting frame (408) and a discarded film bin (405), the outer surface of the second mounting frame (408) is provided with a synchronous belt module (401), the outer surface of the synchronous belt module (401) is provided with a lifting middle screw rod module (402), and the outer surface of the lifting middle screw rod module (402) is provided with a side insertion cylinder (403) and a film tearing detection color sensor (406); the outer surface of the side insertion cylinder (403) is provided with a first clamping claw cylinder (404); the FPC flip module (5) includes a fourth stepping motor (501) and a third synchronous belt module (503); the outer surface of the third synchronous belt module (503) is provided with a hollow rubber strip (502); the side camera module (6) includes a third mounting frame (605) and a prism (603); the outer surface of the third mounting frame (605) is provided with a camera body (601), a screw motor (602) and an FPC receiving plate (604); the gantry XY module (7) includes a fourth mounting frame (709); A linear module Y axis (701) is arranged at the bottom of the fourth mounting frame (709), a linear module X axis (702) is arranged at the bottom of the linear module Y axis (701), a first Z axis (705) and a second Z axis (708) are arranged at the bottom of the linear module X axis (702), the re-inspection and NG sorting module (8) comprises a fifth mounting frame (807) and an NG conveying line (802), a fifth stepping motor (801) and a fourth synchronous belt module (808) are arranged on the outer surface of the fifth mounting frame (807), and a rotating motor (803), a height measuring sensor (804) and a lifting cylinder (805) are arranged on the outer surface of the fourth synchronous belt module (808).

2. A mobile phone FPC assembly machine according to claim 1, characterized in that: The material taking cylinder (303), the guide smoothing rod (305) and the second synchronous belt module (307) are provided in two groups.

3. A mobile phone FPC assembly machine according to claim 1, characterized in that: The output end of the first clamping jaw cylinder (404) is provided with a first clamping jaw body (407), and the first clamping jaw body (407) is arranged above the waste film bin (405).

4. A mobile phone FPC assembly machine according to claim 1, characterized in that: The outer surface of the first Z axis (705) is provided with a rotating R axis (703) and a pressure sensor (706), the outer surface of the second Z axis (708) is provided with an upper camera (707), and the output end of the rotating R axis (703) is provided with a second clamp body (704).

5. The mobile phone FPC assembly machine according to claim 1, characterized in that: A second clamping cylinder (806) is provided at the output end of the lifting cylinder (805), and the second clamping cylinder (806) is arranged directly above the NG conveying line (802).

Citation Information

Patent Citations

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    CN108500606A

  • Automatic detection assembly line without FPC liquid crystal screen

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  • Automatic deviation rectifying and bending device for battery cell FPC

    CN112672516A

  • Online detection machine for new energy battery tabs

    CN219957381U

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