FPC circuit board rotation detection device

Abstract

The utility model discloses an FPC circuit board rotation detection device, relates to the technical field of FPC circuit board detection, and solves the problems that the FPC circuit board detection efficiency is low and large-batch detection requirements cannot be met. Two lower positioning detection modules; the upper pressing module can move up and down; wherein the lower positioning detection module comprises an upper carrier plate and at least one positioning mold arranged on the upper carrier plate; the positioning mold comprises a first needle mold plate, a second needle mold plate, a first connecting module, a second connecting module, a needle mold fixing block and a magnet, wherein the first connecting module and the second connecting module are arranged at the bottoms of the first needle mold plate and the second needle mold plate respectively, and the needle mold fixing block and the magnet are arranged at the bottom of the first needle mold plate. According to the device, the positions of the two lower positioning detection modules can be switched through rotation of the rotary table, the lower positioning detection modules position and fix the FPC circuit board, the FPC circuit board is pressed through the upper pressing module, detection of the FPC circuit board can be rapidly completed, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC circuit board detection, in particular to an FPC circuit board rotation detection device. Background Art

[0002] Flexible printed circuits (FPCs) are highly reliable and flexible printed circuit boards made from polyimide or polyester film. They feature high wiring density, light weight, thinness, and excellent bendability. They are widely used in various electronic devices, including mobile phones, electronic watches, and tablets.

[0003] After the FPC circuit board is produced, its resistance, capacitance, voltage and other performance properties need to be tested to check whether it meets the design requirements and whether the electronic components on the circuit board are faulty. Due to design reasons, the shape of the FPC circuit board is irregular, and the circuit board itself is relatively soft, so it is not easy to position and fix it during testing. At the same time, there are many electronic components on the circuit board, and it is cumbersome to connect the testing instrument to them. Each time a circuit board is tested, the testing instrument needs to be electrically reconnected to the FPC circuit board, which is a cumbersome operation. In addition, the access end of the testing instrument is prone to poor contact when the output line is connected to an electronic component on the circuit board, which requires re-debugging, which is time-consuming and inefficient. It cannot meet the testing needs of large quantities of FPC circuit boards. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and design an FPC circuit board rotation detection device to solve the problem that the FPC circuit board detection efficiency is low and cannot meet the needs of large-scale detection.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide an FPC circuit board rotation detection device, comprising:

[0006] a turntable capable of rotating in a horizontal plane;

[0007] Two lower positioning detection modules, the two lower positioning detection modules are symmetrically distributed on the turntable;

[0008] An upper pressing module capable of moving up and down, the upper pressing module being located directly above one of the lower positioning detection modules;

[0009] The lower positioning detection module includes an upper loading plate, at least one positioning mold arranged on the upper loading plate, the positioning mold includes a first needle template and a second needle template, a first connecting module and a second connecting module respectively arranged at the bottom of the first needle template and the second needle template, a needle mold fixing block and a magnet arranged at the bottom of the first needle template, a positioning groove adapted to the shape of the circuit board to be detected is formed on the first needle template and the second needle template, a plurality of positioning holes are provided in the positioning groove, the first probes on the first connecting module and the second connecting module extend upward into the positioning hole, and the second probe on the needle mold fixing block extends upward into the positioning groove.

[0010] Preferably, the lower positioning detection module also includes a pad, support members fixedly arranged at both ends of the bottom of the upper loading plate, and a guard plate respectively connected to the two support members at both ends, and a first connection port installed on the upper loading plate. The upper loading plate is fixed on the pad, and a plurality of guide rods are provided at the bottom of the pad, and the guide rods are connected to the pad in an up and down sliding manner, and each guide rod is provided with a spring.

[0011] Preferably, the first connection module includes a base, a bullnose connector fixed to the bottom of the base, a fixed block fixed to the top of the base, and a plurality of first probes inserted and fixed on the fixed block, the first probes are electrically connected to the bullnose connector, and the bullnose connector is electrically connected to the first connection port.

[0012] Preferably, a positioning portion is formed on the fixing block in an upward protrusion, and the bottom of the positioning block has a groove for engaging with the positioning portion. A positioning pin is provided on the fixing block, and the positioning pin is plugged into the positioning block.

[0013] Preferably, the second connection module includes a needle block, a connector fixed to the bottom of the needle block, and a plurality of first probes connected to the connector, and the connector is electrically connected to the first connection port.

[0014] Preferably, the bottom of the first needle template and the second needle template are both provided with a negative pressure connector, the positioning groove has a through hole connected to the negative pressure connector, the bottom of the first needle template is provided with a detection mechanism for sensing the circuit board to be detected, the positioning groove has an avoidance hole, and the detection mechanism is located below the avoidance hole.

[0015] Preferably, an installation groove is provided on the first needle template, a positioning block is arranged in the installation groove, the positioning block has a positioning groove, the positioning groove is a part of the positioning groove, the positioning groove has several positioning holes, and the first connection module is located below the positioning block.

[0016] Preferably, a shift cylinder is provided below the first needle template, the shift cylinder is arranged horizontally, and the output end of the shift cylinder is connected to a support block, and the top of the support block has a receiving groove for preventing magnets.

[0017] Preferably, the upper pressing module group includes an upper needle plate, at least one upper pressing mold arranged at the bottom of the upper needle plate and at least one second connection port matching the first connection port, a vertical plate vertically fixed on one side of the upper needle plate, and at least one bull horn connector installed on the vertical plate, the bottom of the upper pressing mold has a mold that is adapted to the shape of the circuit board to be tested, and the second connection port is electrically connected to the bull horn connector.

[0018] Preferably, a rotating support seat is provided in the middle of the bottom of the turntable, and a support frame for supporting the support member is provided below the turntable.

[0019] Compared with the prior art, the beneficial effects are:

[0020] In the utility model, the positions of the two lower positioning detection modules can be switched by rotating the turntable, and the FPC circuit board will be positioned and fixed by the positioning mold in the lower positioning detection module. At the same time, the probes on the first connecting module and the second connecting module will be in electrical contact with the FPC circuit board and the corresponding electronic components, and can be quickly connected to the detection instrument. The upper pressing module can press the circuit board so that the circuit board can be in good contact with all the probes. After power is turned on, the detection instrument can detect the changes in the capacitance, voltage, current, resistance and other values ​​of the FPC circuit board. At the same time, the magnet provides a magnetic field environment for the chip, and the working status of the chip in the magnetic field environment is detected. There will be no poor contact, and the detection of the FPC circuit board can be completed quickly. After each group of FPC circuit boards is detected, the turntable will rotate 180° to detect the next group of FPC circuit boards. This reciprocating process greatly improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the FPC circuit board rotation detection device in the utility model;

[0022] Figure 2 This is a structural diagram of the FPC circuit board rotation detection device from another perspective;

[0023] Figure 3 This is a schematic diagram of the installation structure of the turntable, lower positioning detection module and upper pressing module in the FPC circuit board rotation detection device;

[0024] Figure 4 This is a structural diagram of the lower positioning detection module;

[0025] Figure 5This is a structural diagram of the lower positioning detection module from another perspective;

[0026] Figure 6 It is a schematic diagram of the overall structure of the positioning mold in the lower positioning detection module;

[0027] Figure 7 It is a schematic diagram of the structure when an FPC circuit board is placed on the positioning mold;

[0028] Figure 8 This is a schematic diagram of the structure when the first needle template and the shift cylinder in the positioning mold cooperate;

[0029] Figure 9 It is a schematic diagram of the bottom structure of the first needle template in the positioning mold;

[0030] Figure 10 It is a structural diagram of the first connection module in the positioning mold;

[0031] Figure 11 This is a schematic diagram of the installation structure of the shift cylinder and support block in the positioning mold;

[0032] Figure 12 It is a schematic diagram of the structure of the first needle template in the positioning mold;

[0033] Figure 13 It is a structural diagram of the positioning block in the positioning mold;

[0034] Figure 14 It is a schematic diagram of the bottom structure of the positioning block in the positioning mold;

[0035] Figure 15 It is a schematic diagram of the installation structure of the second needle template and the needle template fixing plate in the positioning mold;

[0036] Figure 16 yes Figure 15 A structural diagram from another perspective;

[0037] Figure 17 This is a schematic diagram of the structure of the second needle template

[0038] Figure 18 This is a schematic diagram of the structure of the upper pressing module in the FPC circuit board rotation detection device;

[0039] Figure 19 It is a structural diagram of the upper pressure module from another perspective.

[0040] In the figure, 1. turntable; 2. lower positioning detection module; 21. upper loading board; 22. pad; 23. positioning mold; 231. first needle template; 232. second needle template; 233. first connection module; 2331. base; 2332. horn connector; 2333. fixing block; 234. needle mold fixing plate; 235. positioning block; 2351. positioning groove; 2352. groove; 236. shift cylinder; 237. second connection module; 2371. needle block; 2372. connector; 238. FPC circuit board; 239. guide post; 2310 , buffer spring; 2311, negative pressure joint; 2312, detection mechanism; 2313, support block; 2314, needle mold fixing block; 2315, magnet; 23101, positioning groove; 231011, positioning hole; 23102, first probe; 23103, second probe; 24, support member; 25, guard plate; 26, first connection port; 3, upper pressure mold group; 31, upper needle plate; 32, vertical plate; 33, upper pressure mold; 34, second connection port; 35, positioning pin; 4, table; 5, limit member; 6, block; 7, support frame; 8, rotating support seat. DETAILED DESCRIPTION

[0041] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] like Figure 1-Figure 3 As shown, a preferred embodiment of the present invention proposes an FPC circuit board rotation detection device, which mainly includes a turntable 1, an upper pressure module 3 and two lower positioning detection modules 2. The two lower positioning detection modules 2 are symmetrically installed on the turntable 1, and the upper pressure module 3 is located directly above one of the lower positioning detection modules 2. The lower positioning detection module 2 positions the FPC circuit board 238 and is electrically connected to the corresponding electronic components at the same time. The upper pressure module 3 can press the FPC circuit board 238 to prevent it from becoming loose and prevent poor contact. The upper pressure module 3 has a main port, which is connected to the FPC circuit board 238, and the detection instrument is then connected to the main port. The turntable 1 switches the positions of the two lower positioning detection modules 2 by rotation, so that uninterrupted and rapid detection of the FPC circuit board 238 can be achieved.

[0043] like Figure 4 、 Figure 5As shown, the lower positioning detection module 2 is composed of an upper loading plate 21, a backing plate 22, a support member 24, a guard plate 25, a positioning mold 23, and a first connection port 26. The upper loading plate 21 is fixed to the backing plate 22. Both the upper loading plate 21 and the backing plate 22 have two through holes. Two positioning molds 23 are provided, one installed in each through hole. Therefore, one lower positioning detection module 2 can simultaneously position two FPC circuit boards 238. There are two first connection ports 26, one corresponding to the two positioning molds 23.

[0044] A guide rod is provided at each of the four corners of the bottom of the backing plate 22. Each guide rod is fitted with a spring, which acts as a buffer when pressed downward. The guide rods are connected to the backing plate 22 for vertical sliding. Two support members 24 are provided, fixed at the two ends of the bottom of the backing plate 22. The support members 24 are used to support the downward pressure of the lower positioning detection module 2. The two ends of the guard plate 25 are connected to the two support members 24 respectively, providing protection for the bottom of the positioning mold 23.

[0045] refer to Figure 6-Figure 12 The positioning mold 23 primarily consists of a first pin template 231, a second pin template 232, a pin template fixing block 2314, a first connecting module 233, and a second connecting module 237. The first pin template 231 and the second pin template 232 are positioned side by side, with the second pin template 232 fixedly mounted on the pin template fixing plate 234. A positioning groove 23101 is formed in both the first pin template 231 and the second pin template 232. The overall shape of the positioning groove 23101 matches the shape of the FPC circuit board 238, allowing for positioning of the FPC circuit board 238 and the various electronic components located thereon.

[0046] refer to Figure 8 、 Figure 13-15 The first pin template 231 has a mounting slot, into which a positioning block 235 is fixedly mounted via screws. This positioning block 235 has a positioning groove 2351, which forms part of the positioning groove 23101 and is used to position the electronic component. Positioning groove 2351 has several positioning holes 231011 within it. Since electronic components have multiple pins, these positioning holes 231011 allow these pins to be positioned, facilitating electrical contact between the probe (i.e., the first probe 23102) and the component.

[0047] refer to Figure 11The first connection module 233 is primarily composed of a base 2331, a header connector 2332, a fixing block 2333, and a plurality of first probes 23102. The fixing block 2333 is fixed to the base 2331 by screws, while the header connector 2332 is fixed to the bottom of the base 2331. The fixing block 2333 has an upwardly protruding positioning portion and two diagonally spaced positioning pins 35. During assembly, the positioning portion engages with a groove 2352 at the bottom of the upper positioning block 235, and the positioning pins 35 also engage with the positioning block 235, ensuring precise positioning.

[0048] The positioning portion has a plurality of vertically extending small holes, each of which is provided with a first probe 23102. The first probe 23102 will pass upward through the positioning hole 231011 on the positioning block 235 and contact the electronic components on the FPC circuit board 238, and can detect the circuit board after power is applied.

[0049] refer to Figure 10 Two pin mold fixing blocks 2314 are located on adjacent sides of the bottom of the first pin mold plate 231, corresponding to two locations on the FPC circuit board. Each pin mold fixing block 2314 has two probes, namely second probes 23103. The two second probes 23103 pass through the first pin mold plate 231 and into the positioning slots 23101, where they contact electronic components at two locations on the FPC circuit board 238.

[0050] All the second probes 23103 are electrically connected to the header connector 2332 via wires. The header connector 2332 is a 10-pin quick connector that can be quickly plugged into the connector of the detection instrument.

[0051] refer to Figure 8 、 Figure 9 、 Figure 12 A shift cylinder 236, designed as a slide cylinder, is located below the first needle template 231. The output end of the shift cylinder 236 is fixedly connected to a support block 2313. A receiving slot is located at the top of the support block 2313, within which a magnet 2315 is placed. The shift cylinder 236 controls the movement of the magnet 2315 below the first needle template 231, near the location of the needle template fixing block 2314. The two second probes 23103 on one of the needle template fixing blocks 2314 contact the chip on the FPC circuit board 238. The magnet 2315 provides a safe magnetic field environment for the chip, allowing for detection of performance changes in the chip under a specific magnetic field when powered on. The shift cylinder 236 controls the movement of the support block 2313 to position the magnet below the chip. The magnet 2315 can also be quickly replaced as needed.

[0052] The second needle template 232 is located on one side of the first needle template 231. A needle template insert is arranged between the needle template fixing plate 234 and the second needle template 232. The needle template insert is used to fix the probes on the second connecting module 237.

[0053] Referring to Figure 17 , the second connecting module 237 is composed of a needle clamping block 2371, a connector 2372, and a plurality of first probes 23102. The connector 2372 is fixed at the bottom of the needle clamping block 2371 by screws, and the two ends of the needle clamping block 2371 are fixedly connected to the needle template fixing plate 234 above through connecting rods. The needle template insert has a plurality of limiting holes for limiting the first probes 23102.

[0054] The connector 2372 is a common 34PIN connector 2372, which can be quickly connected to the joint of the detection instrument.

[0055] Referring to Figure 16 , Figure 17 The lower ends of the plurality of first probes 23102 are electrically connected to the connector 2372, and the upper ends pass through the needle template fixing plate 234, the needle template insert, and the second needle template 232 in sequence. The first probes 23102 pass through the limiting holes and the positioning holes 231011 and are inserted into the positioning grooves 23101 to electrically contact the electronic components on the FPC circuit board 238.

[0056] The horn connector 2332 in the first connecting module 233 and the connector 2372 in the second connecting module 237 are electrically connected to the first connecting port 26 through wires.

[0057] As shown in Figure 16 , in order to ensure that the FPC circuit board is firmly adsorbed in the positioning groove 23101, a negative pressure joint 2311 is further arranged below the first needle template 231 and the second needle template 232. The lower end of the negative pressure joint 2311 is externally connected to a suction mechanism, and the negative pressure joint 2311 has a through hole in the positioning groove 23101. The upper end of the negative pressure joint 2311 communicates with the through hole. When the FPC circuit board 238 is placed in the positioning groove 23101, the negative pressure joint 2311 will suck air outward to generate negative pressure, and the FPC circuit board 238 will be adsorbed in the positioning groove 23101.

[0058] A detection mechanism 2312 is further arranged at the bottom of the first needle template 231. The detection mechanism 2312 adopts an optical fiber sensor. The upper end of the optical fiber sensor passes through the avoiding hole in the first needle template 231, and is used to detect whether the FPC circuit board 238 is placed in the positioning groove 23101. The detection mechanism 2312 works with the automatic detection equipment.

[0059] Guide posts 239 and buffer springs 2310 are mounted at the bottoms of the first and second pin templates 231 and 232. Guide posts 239 provide vertical guidance, while buffer springs 2310 act as buffers. The connector 2372 pin template works in conjunction with a pressure plate, which presses down, tightening the FPC circuit board 238 and securing it firmly against the pin templates. This compresses the buffer springs 2310, providing a buffer and preventing damage.

[0060] like Figure 2 As shown, a rotation support base 8 is provided at the bottom of the turntable 1. The rotation support base 8 is fixed at the center position of the bottom of the turntable 1 and provides support for the rotation of the turntable 1. The bottom of the rotation support base 8 is connected to the rotation drive mechanism, thereby driving the turntable 1 to rotate in the horizontal plane and switching the positions of the two lower positioning detection modules 2.

[0061] A support frame 7 for supporting the support members 24 is provided below the turntable 1 . The support frame 7 includes two support members 24 , each corresponding to the two support members 24 , for supporting the support members 24 .

[0062] like Figure 18-19 As shown, the upper pressing module 3 is composed of an upper needle plate 31, an upper pressing mold 33, a second connection port 34, a vertical plate 32, a bullhorn connector 2332 and other components, wherein the upper pressing mold 33, the second connection port 34 and the bullhorn connector 2332 are each provided with two, corresponding to each other. The two upper pressing molds 33 are fixed on the bottom of the upper needle plate 31, and the two second connection ports 34 are also installed on the upper needle plate 31, and the positions correspond to the positions of the first connection port 26. The first connection port 26 and the second connection port 34 can be plugged in. The vertical plate 32 is vertically fixed on one side of the upper needle plate 31, and the two bullhorn connectors 2332 are both installed on the vertical plate 32. The bullhorn connector 2332 here is the main connection port. The two bullhorn connectors 2332 are respectively connected to the two second connection ports 34 through wires, and the detection instrument is then connected to the bullhorn connector 2332 through wires.

[0063] The bottom surface of the upper pressing mold 33 has a mold that is adapted to the appearance of each electronic component on the FPC circuit board 238. In this way, when the upper pressing mold 33 moves downward, the mold can completely fit with the positioning groove 23101, and the FPC circuit board 238 can be pressed tightly to ensure that the FPC circuit board 238 is in good contact with each probe. At this time, the first connection port 26 will be plugged into the second connection port 34, and then the detection instrument will be connected to the horn connector 2332 on the vertical plate 32, and the FPC circuit board 238 below can be detected.

[0064] A plurality of positioning pins 35 are provided at the bottom of the upper needle plate 31. When the upper pressing module 3 moves downward, the positioning pins 35 can be plugged into the holes on the upper loading plate 21 to ensure that the two modules are accurately positioned.

[0065] refer to Figure 1 The turntable 1 is mounted on a platform 4. A circular through-hole is located in the center of the platform 4, which is compatible with the turntable 1. The platform 4 is provided with two symmetrically spaced stoppers 5, one on each side of the turntable 1. A stopper 6 is provided on the turntable 1, which cooperates with the stopper 5. With the cooperation of the two stoppers 5 and the stopper 6, the turntable 1 can only rotate between 0 and 180 degrees. When the two lower positioning detection modules 2 switch positions, the turntable 1 rotates 180 degrees to ensure that the first connection port 26 can accurately mate with the second connection port 34.

[0066] During testing, the upper pressing module 3 moves downward to press the FPC circuit board 238, and at the same time the second connection port 34 is plugged into the first connection port 26, and the testing instrument is connected to the horn connector 2332 on the vertical plate 32 to test the FPC circuit board 238; after the test is completed, the upper pressing mold 33 moves upward, the turntable 1 rotates 180°, and the positions of the two lower positioning detection modules 2 are switched. The upper pressing mold 33 repeats the above actions to test the FPC circuit board 238.

[0067] The above technical solutions only reflect the preferred technical solutions of the present utility model. Any changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the scope of protection of the present utility model.

Claims

1. An FPC circuit board rotation detection device, characterized in that: include: A turntable (1), wherein the turntable (1) is capable of rotating in a horizontal plane; Two lower positioning detection modules (2), the two lower positioning detection modules (2) are symmetrically distributed on the turntable (1); An upper pressing module (3) capable of moving up and down, the upper pressing module (3) being located directly above one of the lower positioning detection modules (2); The lower positioning detection module (2) comprises an upper loading plate (21), at least one positioning mold (23) arranged on the upper loading plate (21), the positioning mold (23) comprising a first needle template (231) and a second needle template (232), a first connecting module (233) and a second connecting module (237) respectively arranged at the bottom of the first needle template (231) and the second needle template (232), a needle mold fixing block (2314) and a magnet (2315) arranged at the bottom of the first needle template (231), A positioning groove (23101) adapted to the shape of the circuit board to be detected is formed on the plate (231) and the second needle template (232), and a plurality of positioning holes (231011) are provided in the positioning groove (23101). The first probes (23102) on the first connecting module (233) and the second connecting module (237) extend upward into the positioning holes (231011), and the second probes (23103) on the needle mold fixing block (2314) extend upward into the positioning groove (23101).

2. The FPC circuit board rotation detection device according to claim 1, characterized in that: The lower positioning detection module (2) also includes a pad (22), support members (24) fixedly arranged at both ends of the bottom of the upper loading plate (21), a guard plate (25) connected to the two support members (24) at both ends, and a first connection port (26) installed on the upper loading plate (21); the upper loading plate (21) is fixed on the pad (22); a plurality of guide rods are provided at the bottom of the pad (22); the guide rods are connected to the pad (22) in an upward and downward sliding manner; and each guide rod is provided with a buffer spring (2310).

3. The FPC circuit board rotation detection device according to claim 2, characterized in that: The first connection module (233) includes a base (2331), a horn connector (2332) fixed at the bottom of the base (2331), a fixing block (2333) fixed at the top of the base (2331), and a plurality of first probes (23102) inserted and fixed on the fixing block (2333), wherein the first probes (23102) are electrically connected to the horn connector (2332), and the horn connector (2332) is electrically connected to the first connection port (26).

4. The FPC circuit board rotation detection device according to claim 3, characterized in that: A positioning portion is formed on the fixing block (2333) in an upward protrusion, and a mounting groove is provided on the first needle template (231). A positioning block (235) is arranged in the mounting groove, and a groove (2352) is provided at the bottom of the positioning block (235) for engaging with the positioning portion. A positioning pin (35) is provided on the fixing block (2333), and the positioning pin (35) is plugged into the positioning block (235).

5. The FPC circuit board rotation detection device according to claim 2, characterized in that: The second connection module (237) includes a needle block (2371), a connector (2372) fixed at the bottom of the needle block (2371), and a plurality of first probes (23102) connected to the connector (2372), and the connector (2372) is electrically connected to the first connection port (26).

6. The FPC circuit board rotation detection device according to claim 1, characterized in that: The bottom of each of the first needle template (231) and the second needle template (232) is provided with a negative pressure connector (2311), the positioning groove (23101) has a through hole connected to the negative pressure connector (2311), the bottom of the first needle template (231) is provided with a detection mechanism (2312) for sensing the circuit board to be detected, the positioning groove (23101) has an avoidance hole, and the detection mechanism (2312) is located below the avoidance hole.

7. The FPC circuit board rotation detection device according to claim 1, characterized in that: The first needle template (231) is provided with an installation groove, a positioning block (235) is arranged in the installation groove, the positioning block (235) has a positioning groove (2351), the positioning groove (2351) is a part of the positioning groove (23101), the positioning groove (2351) has a plurality of positioning holes (231011), and the first connection module (233) is located below the positioning block (235).

8. The FPC circuit board rotation detection device according to claim 1, characterized in that: A shift cylinder (236) is provided below the first needle template (231), the shift cylinder (236) is arranged horizontally, and the output end of the shift cylinder (236) is connected to a support block (2313), and the top of the support block (2313) has a receiving groove for preventing the magnet (2315).

9. The FPC circuit board rotation detection device according to claim 2, characterized in that: The upper pressing mold assembly (3) comprises an upper needle plate (31), at least one upper pressing mold (33) arranged at the bottom of the upper needle plate (31) and at least one second connection port (34) matched with the first connection port (26), a vertical plate (32) vertically fixed on one side of the upper needle plate (31), and at least one horn connector (2332) installed on the vertical plate (32), the bottom of the upper pressing mold (33) has a mold that is adapted to the outer shape of the circuit board to be tested, and the second connection port (34) is electrically connected to the horn connector (2332).

10. The FPC circuit board rotation detection device according to claim 2, characterized in that: A rotating support seat (8) is provided in the middle of the bottom of the turntable (1), and a support frame (7) for supporting the support member (24) is provided below the turntable (1).

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