FFC (flexible flat cable) on-off testing device

Abstract

The utility model discloses an FFC flat cable on-off test device, and relates to the FFC flat cable technology field, comprising a work bench, the middle part of the upper end of the work bench is provided with a placing groove, the inner part of the placing groove is fixedly connected with a placing bench, the middle part of the upper end of the placing bench is provided with a driving groove in a penetrating manner, and the inner part of the driving groove is rotatably connected with a bidirectional threaded rod. The outer surface of the bidirectional threaded rod is in threaded connection with two symmetrically-distributed moving plates, the upper ends of the moving plates are fixedly connected with limiting plates, the outer surface of the bidirectional threaded rod is fixedly connected with a first bevel gear, a servo motor is fixedly installed at the bottom end of the driving groove, and the output end of the servo motor is fixedly connected with a second bevel gear. According to the scheme, the probe is driven to move through the electric push rod and the linear motor, the flat cable is tested, and compared with manual testing, the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of FFC flexible flat cables, and particularly relates to a device for testing the continuity of FFC flexible flat cables. Background Technique

[0002] FFC flexible flat cables, also known as Flexible Flat Cable, can arbitrarily select the number of wires and the spacing, making the connection more convenient, greatly reducing the volume of electronic products, reducing production costs, and improving production efficiency. It is most suitable for use as a data transmission cable between moving parts and the motherboard, between PCB boards, and in miniaturized electrical equipment. During the manufacturing process of the flexible flat cable, in order to ensure the performance of the flexible flat cable, it is necessary to test the continuity of the FFC flexible flat cable to ensure the reliability and quality of the connection.

[0003] At present, the commonly used method for testing flexible flat cables is for workers to hold the two test leads of a multimeter by hand and directly measure the resistance between the internal wires of the flexible flat cable through the resistance measurement function of the multimeter to determine whether there is continuity or poor contact. Since the FFC ends are relatively small, during the testing process, workers need to maintain a high degree of concentration to ensure that each end of the flexible flat cable is separately contacted by the test leads. It is very easy to have misoperations under a high-intensity working state, resulting in inaccurate test results. Moreover, only one flexible flat cable can be tested at a time, which consumes a large amount of manpower and has a low testing efficiency. Therefore, a device for testing the continuity of FFC flexible flat cables is proposed to solve the above-mentioned problems. Content of the Utility Model

[0004] To solve the above technical problems, a device for testing the continuity of FFC flexible flat cables is provided. This technical solution solves the problems mentioned in the above background technique, that is, the commonly used method for testing flexible flat cables is for workers to hold the test leads of a multimeter by hand and directly measure the resistance between the internal wires of the flexible flat cable through the resistance measurement function of the multimeter to determine whether there is continuity or poor contact. Since the FFC ends are relatively small, during the testing process, workers need to maintain a high degree of concentration to ensure that each end of the flexible flat cable is separately contacted by the test leads. It is very easy to have misoperations under a high-intensity working state, resulting in inaccurate test results. Moreover, only one flexible flat cable can be tested at a time, which consumes a large amount of manpower and has a low testing efficiency.

[0005] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0006] An FFC cable continuity test device includes a workbench. In the middle of the upper end of the workbench, a placement groove is opened. Inside the placement groove, a placement table is fixedly connected. In the middle of the upper end of the placement table, a driving groove is penetrated. Inside the driving groove, a bidirectional threaded rod is rotatably connected. On the outer surface of the bidirectional threaded rod, two symmetrically distributed moving plates are threadedly connected. On the upper end of the moving plate, a limiting plate is fixedly connected. On the outer surface of the bidirectional threaded rod, a first bevel gear is fixedly connected. At the bottom end of the driving groove, a servo motor is fixedly installed. The output end of the servo motor is fixedly connected with a second bevel gear. The second bevel gear and the first bevel gear are meshed with each other. On the front and rear sides of the upper end of the workbench, two symmetrically distributed first chutes are opened.

[0007] Preferably, two symmetrically distributed guide rods are fixedly connected inside the first chute. On the outer surface of the guide rod, a sliding seat is slidably connected.

[0008] Preferably, an electric push rod for driving the sliding seat to move is fixedly installed in the middle of the two guide rods inside the first chute.

[0009] Preferably, a second chute is opened on the upper end of the sliding seat. Inside the second chute, a linear motor is fixedly connected. The output end of the linear motor is fixedly connected with a moving seat. On the upper end of the moving seat, a plurality of detection heads are fixedly connected.

[0010] Preferably, a probe is arranged at the lower end of the detection head.

[0011] Preferably, an LED lamp is arranged at one end of the detection head away from the placement table.

[0012] Preferably, symmetrically distributed support frames are fixedly connected to the left and right sides of the upper end of the workbench. On the upper end of the support frame, a cylinder is fixedly installed. The output end of the cylinder penetrates the upper end of the support frame and is fixedly connected with a pressing block.

[0013] The beneficial effects of the present utility model compared with the prior art are:

[0014] This scheme proposes an FFC cable continuity test device. The cable to be detected is placed on the upper end of the placement table. The ends on both sides of the cable face the side where the probes are located on both sides. Through the simultaneous inward movement of the limiting plates on both sides, the cable is located in the middle of the placement table and is fixed by driving the pressing block to press down by the cylinder. Then, the electric push rod drives the probes on both sides to approach the ends on both sides of the cable respectively. If the cable is a through circuit, the LED lamp on the corresponding detection head will light up. If the cable is short-circuited or open-circuited, the LED lamp will not emit light. Through the setting of multiple probes, multiple cables can be tested at one time, and the efficiency is higher than that of manual testing. Description of the Drawings

[0015] Figure 1Schematic structural diagram of the present utility model;

[0016] Figure 2 Schematic structural diagram of the drive groove in the present utility model;

[0017] Figure 3 Schematic structural diagram of the sliding seat in the present utility model.

[0018] The reference numerals in the figure are:

[0019] 1. Workbench; 2. Placing groove; 3. Placing table; 4. Drive groove; 5. Bidirectional threaded rod; 6. Moving plate; 7. Limiting plate; 8. First bevel gear; 9. Servo motor; 10. Second bevel gear; 11. First sliding groove; 12. Guide rod; 13. Sliding seat; 14. Electric push rod; 15. Second sliding groove; 16. Linear motor; 17. Moving seat; 18. Detection head; 19. Probe; 20. LED lamp; 21. Support frame; 22. Cylinder; 23. Pressing block. Specific implementation mode

[0020] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0021] Refer to Figure 1 and Figure 2 As shown in

[0022] and

[0023] Further, symmetrically distributed support frames 21 are fixedly connected to the left and right sides of the upper end of the workbench 1 located in the placement groove 2. A cylinder 22 is fixedly installed at the upper end of the support frame 21. The output end of the cylinder 22 penetrates through the upper end of the support frame 21 and is fixedly connected to a pressing block 23. When the limit plate 7 adjusts the cable to the middle position of the placement table 3, the cylinder 22 will drive the pressing block 23 to press on the surface of the cable, thereby fixing the cable to prevent it from shifting during the detection process.

[0024] Referring Figure 1 and Figure 3 As shown, two symmetrically distributed first sliding grooves 11 are provided on the front and rear sides of the upper end of the workbench 1. Two symmetrically distributed guide rods 12 are fixedly connected inside the first sliding groove 11. A sliding seat 13 is slidably connected to the outer surface of the guide rod 12. An electric push rod 14 for driving the sliding seat 13 to move is fixedly installed in the middle of the two guide rods 12 inside the first sliding groove 11. A second sliding groove 15 is provided at the upper end of the sliding seat 13. A linear motor 16 is fixedly connected inside the second sliding groove 15. The output end of the linear motor 16 is fixedly connected to a moving seat 17. A plurality of detection heads 18 are fixedly connected to the upper end of the moving seat 17. A probe 19 is provided at the lower end of the detection head 18.

[0025] Further, an LED lamp 20 is provided at one end of the detection head 18 away from the placement table 3. A closed circuit can be formed by contacting the two ends of the cable through the two probes 19. The on-off of the cable can be judged by the lighting and extinguishing of the LED lamp 20. If the LED lamp 20 emits light, the cable is normal. If the LED lamp 20 does not emit light, the cable is short-circuited or open-circuited.

[0026] Further, the electric push rod 14 drives the probes 19 on both sides to approach the first end heads on both sides of the cable respectively. If the cable is a through circuit, the LED lamp 20 on the corresponding detection head 18 will light up. If the cable is short-circuited or open-circuited, the LED lamp 20 will not emit light.

[0027] Working principle: When in use, place the flexible cable to be detected on the upper end of the placement table 3, with the ends on both sides of the flexible cable facing the side where the two probes 19 are located. Start the servo motor 9, drive the second bevel gear 10 to rotate through the servo motor 9, so that the first bevel gear 8 drives the bidirectional threaded rod 5 to rotate, and then drive the two limit plates 7 on both sides to move inward simultaneously to adjust the position of the flexible cable, making the flexible cable located in the middle position of the placement table 3. Then drive the pressing block 23 to press down through the air cylinder 22 to fix the flexible cable. After the pressing block 23 fixes the flexible cable, the servo motor 9 rotates in reverse to drive the two limit plates 7 to reset. Then drive the probes 19 on both sides to contact the ends on both sides of the flexible cable respectively through the electric push rod 14 and the linear motor 16. If the flexible cable is a through circuit, the LED lamp 20 on the corresponding detection head 18 will light up. If the flexible cable is short-circuited or open-circuited, the LED lamp 20 will not emit light. At this time, the flexible cable corresponding to the detection head 18 where the LED lamp 20 does not emit light is the faulty flexible cable, and the staff can manually remove it.

[0028] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A FFC cable continuity test device, characterized in that: The invention comprises a workbench (1), wherein a placement groove (2) is provided in the middle of the upper end of the workbench (1), a placement platform (3) is fixedly connected inside the placement groove (2), a driving groove (4) is provided through the middle of the upper end of the placement platform (3), a bidirectional threaded rod (5) is rotatably connected inside the driving groove (4), two symmetrically distributed moving plates (6) are threadedly connected on the outer surface of the bidirectional threaded rod (5), the upper end of the moving plate (6) is fixedly connected to a limiting plate (7), the outer surface of the bidirectional threaded rod (5) is fixedly connected to a first bevel gear (8), a servo motor (9) is fixedly installed at the bottom end of the driving groove (4), the output end of the servo motor (9) is fixedly connected to a second bevel gear (10), the second bevel gear (10) and the first bevel gear (8) are meshed with each other, and two symmetrically distributed first sliding grooves (11) are provided on the front and rear sides of the upper end of the workbench (1).

2. The FFC cable continuity test device according to claim 1, characterized in that: Two symmetrically distributed guide rods (12) are fixedly connected inside the first sliding groove (11), and a sliding seat (13) is slidably connected to the outer surface of the guide rod (12).

3. The FFC cable continuity test device according to claim 1, characterized in that: An electric push rod (14) for driving the sliding seat (13) to move is fixedly installed in the middle of the two guide rods (12) inside the first sliding groove (11).

4. The FFC cable continuity test device according to claim 2, characterized in that: A second slide groove (15) is provided at the upper end of the sliding seat (13), a linear motor (16) is fixedly connected inside the second slide groove (15), a moving seat (17) is fixedly connected to the output end of the linear motor (16), and a plurality of detection heads (18) are fixedly connected to the upper end of the moving seat (17).

5. The FFC cable continuity test device according to claim 4, characterized in that: A probe (19) is provided at the lower end of the detection head (18).

6. The FFC cable continuity test device according to claim 4, characterized in that: An LED lamp (20) is provided at one end of the detection head (18) away from the placement table (3).

7. The FFC cable continuity test device according to claim 1, characterized in that: The upper end of the workbench (1) is located on the left and right sides of the placement groove (2) and is fixedly connected to symmetrically distributed support frames (21), and a cylinder (22) is fixedly installed on the upper end of the support frame (21). The output end of the cylinder (22) passes through the upper end of the support frame (21) and fixes the pressure block (23).

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