Flexible circuit board detection device

Abstract

The present invention discloses a flexible circuit board detection device, which relates to the technical field of flexible circuit board detection, and comprises a device base, wherein one end of the top surface of the device base is fixedly connected to a device top frame; a transportation mechanism, wherein the number of the transportation mechanisms is three groups, which are arranged at the other end of the device base, and the three groups of transportation mechanisms are used to transport the flexible circuit board; a transfer mechanism, wherein the transfer mechanism is slidably arranged on the top surface of the device base, and the transfer mechanism is used to automatically transfer the flexible circuit board between the device base and the transportation mechanism by lifting; a circuit board detection mechanism; through the provided transfer mechanism, in the process of the transfer mechanism lifting the flexible circuit board, the flexible circuit board is lifted by the transfer frame, and the flexible circuit board will not be affected by external force, thereby improving the safety of the flexible circuit board during transportation, and since the flexible circuit board will not be affected by external force, the flexible circuit board will not bend, thereby facilitating the detection of the circuit board detection mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible circuit board detection, and in particular to a flexible circuit board detection device. Background Art

[0002] A flexible circuit board is a bendable circuit board. Due to its bendable nature, it can be installed in spaces where rigid circuit boards cannot be installed, which can reduce the size of electronic devices. Flexible circuit boards are also often used to electrically connect various modules in electronic devices. After the flexible circuit board is produced, it needs to be tested before it can be used normally, so a flexible circuit board testing device is used.

[0003] Current flexible circuit board detection devices are prone to damage to flexible circuit boards when detecting them. For example, an automatic visual detection device for flexible circuit boards disclosed in application number CN112284442B uses a vacuum suction cup to hold the flexible circuit board during transportation to achieve transportation of the flexible circuit board. However, the vacuum suction cup applies suction to the surface of the flexible circuit board, causing the flexible circuit board to bend. This is not conducive to subsequent scanning and detection on the one hand, and is also prone to damage to the flexible circuit board on the other hand. Summary of the invention

[0004] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a flexible circuit board detection device. Through the setting of a transfer mechanism, during the process of the transfer mechanism lifting the flexible circuit board, the flexible circuit board is lifted by the transfer frame, and the flexible circuit board will not be affected by external forces, thereby improving the safety of the flexible circuit board during transportation. Since the flexible circuit board will not be affected by external forces, the flexible circuit board will not bend, which is helpful for the detection of the circuit board detection mechanism.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A flexible circuit board detection device, comprising:

[0007] A device base, one end of the top surface of the device base being fixedly connected to a device top frame;

[0008] A transport mechanism, wherein the number of the transport mechanism is three groups, and the transport mechanism is arranged at the other end of the device base. The three groups of the transport mechanism are used to transport the flexible circuit board, wherein one group of the transport mechanism transports the undetected flexible circuit board to the transfer mechanism, and the other two groups of the transport mechanism are used to transport the normal flexible circuit board and the faulty flexible circuit board respectively;

[0009] A transfer mechanism, the transfer mechanism is slidably arranged on the top surface of the device base, and the transfer mechanism is used to automatically transfer the flexible circuit board between the device base and the transport mechanism by lifting;

[0010] A circuit board detection mechanism is slidably arranged on the inner side of the device top frame, and is used to detect a flexible circuit board.

[0011] As a further solution of the present invention: the device base includes a transport groove, and horizontal track grooves are opened on both sides of the device base near the transport mechanism, and a lead screw arranged along the horizontal groove wall direction is installed on the inner side of one of the horizontal track grooves through a bearing, and a motor is installed inside the device base near the lead screw, and the output shaft of the motor is engaged with the end position of the lead screw. After the motor is started, the motor can drive the lead screw to rotate.

[0012] As a further solution of the present invention: a detection frame is fixedly connected to the top surface of the device base near the bottom position of the circuit board detection mechanism, and the detection frame is composed of a plurality of horizontally arranged long rods, and the plurality of the long rods are arranged at equal intervals.

[0013] As a further solution of the present invention: the transport mechanism includes two protective side plates, and rotating shafts are installed at both ends of the inner sides of the two protective side plates through bearings, and a number of conveyor belts arranged at equal intervals are embedded in the sides of the two rotating shafts. A retaining frame is bolted to one end of the inner side of the two protective side plates close to the circuit board detection mechanism, and the retaining frame is embedded in the gap between multiple conveyor belts.

[0014] As a further solution of the present invention: the transfer mechanism includes a moving frame, and ball nuts are fixedly connected to the bottom of both ends of the moving frame. The ball nuts are embedded in the horizontal track groove and fit with the lead screw in the horizontal track groove.

[0015] As a further solution of the present invention: a moving block is nested on the outer side of the moving frame, a first hydraulic cylinder is fixedly connected to the middle position of one side of the moving block, and the bottom end of the first hydraulic cylinder is connected to the transfer frame through a hydraulic rod.

[0016] As a further solution of the present invention: the transfer rack includes a plurality of horizontal transfer rods connected to each other.

[0017] As a further solution of the present invention: the circuit board detection mechanism includes a moving platform, both ends of the moving platform are fixedly connected with sliders, the inner side of the top frame of the device is provided with a sliding groove that fits with the slider near the slider, and the center position of the bottom surface of the moving platform is fixedly connected with a passage detection mechanism.

[0018] As a further solution of the present invention: a sliding connecting rod is provided on the top of the moving platform, both ends of the connecting rod are fixedly connected with a second hydraulic cylinder, and the bottom end of the second hydraulic cylinder is connected with a circuit scanner through a hydraulic rod.

[0019] As a further solution of the present invention: the passage detection mechanism includes a detection plate, a third hydraulic cylinder is fixedly connected to the center position of the top surface of the detection plate, the top of the third hydraulic cylinder is fixedly connected to the bottom surface of the movable platform through a hydraulic rod, two movable rods are provided on the bottom surface of the detection plate, and movable terminals are embedded on the sides of the movable rods.

[0020] Beneficial effects of the present invention:

[0021] 1. In the present invention, a transfer mechanism is set up, and in the process of the transfer mechanism lifting the flexible circuit board, the flexible circuit board is lifted by the transfer frame, and the flexible circuit board will not be affected by external forces, thereby improving the safety of the flexible circuit board during transportation. Since the flexible circuit board is not affected by external forces, the flexible circuit board will not bend, which is helpful for the detection of the circuit board detection mechanism.

[0022] 2. In the present invention, by setting up the detection frame, the horizontal transfer rod on the transfer frame will be embedded in the gap between multiple long rods. After the horizontal transfer rod enters the gap, the flexible circuit board will stay on the top surface of the detection frame, and the transfer frame can be moved to its original position. After the inspection of the flexible circuit board is completed, the transfer frame is first inserted from the end face of the detection frame, and then the flexible circuit board is lifted up, thereby realizing the automatic transportation of the flexible circuit board.

[0023] 3. In the present invention, through the circuit board detection mechanism, the circuit scanner can detect the appearance of the flexible circuit board, and the path detection mechanism is set. The third hydraulic cylinder can drive the detection plate through the hydraulic rod to make the detection plate close to the flexible circuit board, ensuring that the movable terminal on the detection board can cooperate with the port on the flexible circuit board to perform electrical detection on the flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the base of the device in the present invention;

[0027] Figure 3 It is a structural schematic diagram of the transportation mechanism in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the transfer mechanism in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the circuit board detection mechanism in the present invention;

[0030] Figure 6 It is a structural schematic diagram of the path detection mechanism in the present invention.

[0031] In the figure: 1. device base; 11. transport trough; 12. horizontal track groove; 13. detection frame; 2. transport mechanism; 21. protective side plate; 22. rotating shaft; 23. conveyor belt; 24. retaining frame; 3. transfer mechanism; 31. mobile frame; 32. ball nut; 33. moving block; 34. first hydraulic cylinder; 35. transfer frame; 4. device top frame; 5. circuit board detection mechanism; 51. moving table; 52. connecting rod; 53. second hydraulic cylinder; 54. circuit scanner; 55. passage detection mechanism; 551. detection board; 552. third hydraulic cylinder; 553. moving rod; 554. moving terminal. DETAILED DESCRIPTION

[0032] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 6 As shown, a flexible circuit board detection device comprises a device base 1, one end of the top surface of the device base 1 is fixedly connected with a device top frame 4, and three groups of transportation mechanisms 2 are arranged at the other end of the device base 1, and the three groups of transportation mechanisms 2 are used to transport flexible circuit boards. A sliding transfer mechanism 3 is arranged on the top surface of the device base 1, and the transfer mechanism 3 is used to automatically transfer the flexible circuit board between the device base 1 and the transportation mechanism 2 by lifting. A circuit board detection mechanism 5 is slidingly arranged on the inner side of the device top frame 4, and the circuit board detection mechanism 5 is used to detect flexible circuit boards. One group is the transportation mechanism 2 that transports undetected flexible circuit boards to the transfer mechanism 3, and the other two groups of transportation mechanisms 2 are used to transport normal flexible circuit boards and faulty flexible circuit boards respectively. Since the flexible circuit board is soft in texture, it will bend under the action of external force. The set transfer mechanism 3 is used to transfer the flexible circuit board from the transportation mechanism 2 to the bottom of the circuit board detection mechanism 5 by lifting. In the process of the transfer mechanism 3 lifting the flexible circuit board, the flexible circuit board will not be affected by external force, thereby improving the safety of the flexible circuit board during transportation. Since the flexible circuit board will not be affected by external force, the flexible circuit board will not bend, which is helpful for the detection of the circuit board detection mechanism 5.

[0034] like Figure 2As shown, the device base 1 includes a transport groove 11, and horizontal track grooves 12 are opened on both sides of the device base 1 near the transport mechanism 2. A lead screw arranged along the horizontal groove wall direction is installed on the inner side of one of the horizontal track grooves 12 through a bearing, and a motor is installed inside the device base 1 near the lead screw. The output shaft of the motor is engaged with the end position of the lead screw. After the motor is started, the motor can drive the lead screw to rotate.

[0035] like Figure 2 As shown, a detection frame 13 is fixedly connected to the top surface of the device base 1 near the bottom position of the circuit board detection mechanism 5. The detection frame 13 is composed of a plurality of horizontally arranged long rods, and the plurality of long rods are arranged at equal intervals.

[0036] like Figure 3 As shown, the transport mechanism 2 includes two protective side plates 21, and the two ends of the inner sides of the two protective side plates 21 are provided with rotating shafts 22 through bearings, and the sides of the two rotating shafts 22 are embedded with a plurality of equally spaced conveyor belts 23, and the inner sides of the two protective side plates 21 are connected with a retaining frame 24 at one end close to the circuit board detection mechanism 5 by bolts, and the retaining frame 24 is embedded in the gaps between the plurality of conveyor belts 23;

[0037] The rotating shaft 22 is connected to the motor through a coupling. When the rotating shaft 22 rotates, the conveyor belt 23 can be driven to rotate, and the rotating conveyor belt 23 can convey the flexible circuit board.

[0038] like Figure 4 As shown, the transfer mechanism 3 includes a moving frame 31, and ball nuts 32 are fixedly connected to the bottom of both ends of the moving frame 31. The ball nuts 32 are embedded in the horizontal track groove 12 and fit with the lead screw in the horizontal track groove 12. A moving block 33 is nested on the outer side of the moving frame 31, and a first hydraulic cylinder 34 is fixedly connected to the middle position of one side of the moving block 33. The bottom end of the first hydraulic cylinder 34 is connected to a transfer frame 35 through a hydraulic rod. The transfer frame 35 includes a plurality of horizontal transfer rods connected to each other.

[0039] When the lead screw inside the horizontal track groove 12 rotates, since the ball nut 32 at the bottom of the moving frame 31 cooperates with the lead screw, the lead screw can drive the moving frame 31 through the ball nut 32 to move the moving frame 31 along the direction of the horizontal track groove 12. When the moving frame 31 moves to the end of the horizontal track groove 12 away from the circuit board detection mechanism 5, the first hydraulic cylinder 34 is opened, and the first hydraulic cylinder 34 will push the transfer frame 35 through the hydraulic rod to make the transfer frame 35 stuck in the gap of the conveyor belt 23, and then drive the moving frame 31 to move the moving frame 31 to the bottom of the flexible circuit board, and then lift the transfer frame 35 through the first hydraulic cylinder 34. At this time, the transfer frame 35 will pass through the conveyor belt 23 and hold up the flexible circuit board. During the process of the flexible circuit board being lifted by the transfer rack 35, it always remains flat. The mobile rack 31 can continue to transport the flexible circuit board and transport the flexible circuit board to the position of the detection rack 13. The transfer rack 35 is driven by the first hydraulic cylinder 34 to move the transfer rack 35 downward. During the downward movement of the transfer rack 35, the horizontal transfer rod on the transfer rack 35 will be embedded in the gap between the multiple long rods. After the horizontal transfer rod enters the gap, the flexible circuit board will stay on the top surface of the detection rack 13, and the transfer rack 35 can be moved to its original position. After the inspection of the flexible circuit board is completed, the transfer rack 35 is first inserted from the end face of the detection rack 13 to enable the transfer rack 35, and then lift the flexible circuit board to realize the automatic transportation of the flexible circuit board.

[0040] like Figure 5 As shown, the circuit board detection mechanism 5 includes a moving platform 51, both ends of the moving platform 51 are fixedly connected with sliders, the inner side of the device top frame 4 is provided with a slide groove that fits with the slider near the slider, the center position of the bottom surface of the moving platform 51 is fixedly connected with a passage detection mechanism 55, the top of the moving platform 51 is provided with a sliding connecting rod 52, the connecting rod 52 can be driven by a screw mechanism, a hydraulic push rod, a pneumatic push rod or an electric push rod, so that the connecting rod 52 can move along the top surface of the moving platform 51, both ends of the connecting rod 52 are fixedly connected with a second hydraulic cylinder 53, and the bottom end of the second hydraulic cylinder 53 is connected to a circuit scanner 54 through a hydraulic rod.

[0041] like Figure 6 As shown, the passage detection mechanism 55 includes a detection plate 551, and a third hydraulic cylinder 552 is fixedly connected to the center position of the top surface of the detection plate 551. The top of the third hydraulic cylinder 552 is fixedly connected to the bottom surface of the movable platform 51 through a hydraulic rod. Two movable rods 553 are provided on the bottom surface of the detection plate 551, and movable terminals 554 are embedded on the sides of the movable rods 553.

[0042] During operation, the second hydraulic cylinder 53 first drives the circuit scanner 54 so that the circuit scanner 54 is one centimeter above the flexible circuit board. The circuit scanner 54 is moved by the connecting rod 52 so that the circuit scanner 54 can scan the specific situation of the flexible circuit board. The two movable rods 553 can adjust the position of the movable terminal 554 so that the position of the movable terminal 554 fits the port on the flexible circuit board. The third hydraulic cylinder 552 is opened. The third hydraulic cylinder 552 can drive the detection plate 551 through the hydraulic rod to make the detection plate 551 close to the flexible circuit board, ensuring that the movable terminal 554 on the detection plate 551 can cooperate with the port on the flexible circuit board to perform electrical detection on the flexible circuit board.

[0043] The working principle of the present invention is as follows: the conveyor belt 23 in the transport mechanism 2 in the middle position can transport the flexible circuit board to the blocking frame 24, and the moving frame 31 is driven by the lead screw to make the moving frame 31 move along the direction of the horizontal track groove 12. When the moving frame 31 moves to the end of the horizontal track groove 12 away from the circuit board detection mechanism 5, the first hydraulic cylinder 34 is opened, and the first hydraulic cylinder 34 will push the transfer frame 35 through the hydraulic rod, so that the transfer frame 35 is stuck in the gap of the conveyor belt 23, and then drive the moving frame 31 to move the moving frame 31 to the bottom of the flexible circuit board, and then lift the transfer frame 35 through the first hydraulic cylinder 34. At this time, the transfer frame 35 will pass through the conveyor belt 23 and hold up the flexible circuit board. In the process of the flexible circuit board being lifted by the transfer frame 35, it always remains flat. The moving frame 31 can continue to transport the flexible circuit board and transport the flexible circuit board to the position of the detection frame 13, and drive the transfer frame 35 by the first hydraulic cylinder 34 to move the transfer frame 35 downward. In the process of the transfer frame 35 moving downward, the horizontal transfer rod on the transfer frame 35 will be embedded in the multi- In the gap between the long rods, after the horizontal transfer rod enters the gap, the flexible circuit board will stay on the top surface of the detection frame 13, and the transfer frame 35 can be moved to its original position, and the second hydraulic cylinder 53 is opened. The second hydraulic cylinder 53 first drives the circuit scanner 54, so that the circuit scanner 54 is one centimeter above the flexible circuit board, and the circuit scanner 54 is moved by the connecting rod 52, so that the circuit scanner 54 can scan the specific situation of the flexible circuit board, and the two moving rods 553 set can adjust the position of the moving terminal 554, so that the position of the moving terminal 554 fits the port on the flexible circuit board, and the third hydraulic cylinder 552 is opened. The third hydraulic cylinder 552 can drive the detection plate 551 through the hydraulic rod, so that the detection plate 551 is close to the flexible circuit board, ensuring that the moving terminal 554 on the detection plate 551 can cooperate with the port on the flexible circuit board, and the flexible circuit board is electrically tested, and the transfer frame 35 is first inserted from the end face of the detection frame 13 to make the transfer frame 35, and then lift the flexible circuit board to transport the flexible circuit board to the transportation mechanism 2 on both sides.

[0044] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A flexible circuit board detection device, characterized in that: include: A device base (1), wherein one end of the top surface of the device base (1) is fixedly connected to a device top frame (4); Transport mechanisms (2), the number of the transport mechanisms (2) being three groups, and being arranged at the other end of the device base (1), the three groups of the transport mechanisms (2) being used to transport the flexible circuit board; A transfer mechanism (3), the transfer mechanism (3) being slidably disposed on the top surface of the device base (1), the transfer mechanism (3) being used to automatically transfer the flexible circuit board between the device base (1) and the transport mechanism (2) by lifting; A circuit board detection mechanism (5), the circuit board detection mechanism (5) being slidably disposed on the inner side of the device top frame (4), the circuit board detection mechanism (5) being used to detect a flexible circuit board; The device base (1) comprises a transport groove (11), and horizontal track grooves (12) are provided on both sides of the device base (1) near the transport mechanism (2), wherein a lead screw arranged along the horizontal groove wall direction is installed on the inner side of one of the horizontal track grooves (12) via a bearing; The transport mechanism (2) comprises two protective side plates (21), the inner ends of the two protective side plates (21) are provided with rotating shafts (22) via bearings, the sides of the two rotating shafts (22) are embedded with a plurality of equally spaced conveyor belts (23), the inner ends of the two protective side plates (21) close to the circuit board detection mechanism (5) are bolted with a retaining frame (24), and the retaining frame (24) is embedded in the gaps between the plurality of conveyor belts (23); The transfer mechanism (3) comprises a moving frame (31), and the bottoms of both ends of the moving frame (31) are fixedly connected with ball nuts (32), and the ball nuts (32) are embedded in the horizontal track groove (12) and fit with the lead screw in the horizontal track groove (12); The circuit board detection mechanism (5) comprises a moving platform (51), with sliders fixedly connected to both ends of the moving platform (51), a slide groove that fits with the slider is provided on the inner side of the device top frame (4) near the slider, and a passage detection mechanism (55) is fixedly connected to the center of the bottom surface of the moving platform (51).

2. A flexible circuit board detection device according to claim 1, characterized in that: A detection frame (13) is fixedly connected to the top surface of the device base (1) near the bottom of the circuit board detection mechanism (5); the detection frame (13) is composed of a plurality of horizontally arranged long rods, and the plurality of long rods are arranged at equal intervals.

3. A flexible circuit board detection device according to claim 1, characterized in that: A moving block (33) is nested outside the moving frame (31), a first hydraulic cylinder (34) is fixedly connected to the middle position of one side of the moving block (33), and the bottom end of the first hydraulic cylinder (34) is connected to the transfer frame (35) via a hydraulic rod.

4. A flexible circuit board detection device according to claim 3, characterized in that: The transfer frame (35) comprises a plurality of horizontal transfer rods connected to each other.

5. The flexible circuit board detection device according to claim 1, characterized in that: A sliding connecting rod (52) is provided on the top of the moving platform (51), and both ends of the connecting rod (52) are fixedly connected to a second hydraulic cylinder (53), and the bottom end of the second hydraulic cylinder (53) is connected to a circuit scanner (54) via a hydraulic rod.

6. A flexible circuit board detection device according to claim 1, characterized in that: The passage detection mechanism (55) comprises a detection plate (551), a third hydraulic cylinder (552) being fixedly connected to the center position of the top surface of the detection plate (551), the top end of the third hydraulic cylinder (552) being fixedly connected to the bottom surface of the movable platform (51) via a hydraulic rod, two movable rods (553) being provided on the bottom surface of the detection plate (551), and movable terminals (554) being embedded on the sides of the movable rods (553).

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