Full-automatic detection equipment for FPC (Flexible Printed Circuit)

Abstract

The invention discloses full-automatic detection equipment for an FPC (flexible printed circuit) board, relates to the technical field of FPC board detection, solves the problems of complicated operation and low detection efficiency of the FPC board, and comprises a feeding tray arranging machine, a discharging tray arranging machine, a carrying device and a rotary detection device, the carrying device comprises a suction assembly capable of moving up and down and transversely, and the suction assembly is provided with a plurality of suction nozzles. The rotary detection device comprises a rotary table, two lower positioning detection modules and an upper pressing module, each lower positioning detection module comprises an upper carrier plate and a positioning mold, and each 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. The automatic feeding and discharging device has the advantages of being high in automation degree, high in detection efficiency and the like, has the automatic feeding and discharging function, and can detect changes of numerical values such as capacitance, voltage, current and resistance of the FPC circuit board through a detection instrument after the FPC circuit board is positioned and powered on.

Description

Technical Field

[0001] The invention relates to the technical field of FPC circuit board detection, in particular to a fully automatic detection device for an FPC circuit board. Background Art

[0002] Flexible printed circuit board (FPC for short) is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the substrate. It has the characteristics of high wiring density, light weight, thin thickness and good bending properties. It is widely used in various electronic devices, such as mobile phones, electronic watches, tablets and other electronic devices.

[0003] After the FPC circuit board is produced, its resistance, capacitance, voltage and other performances 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 detection. At the same time, there are many electronic components on the circuit board, and it is cumbersome to connect the detection instrument to it. Each time a circuit board is detected, the detection instrument needs to be re-electrically connected to the FPC circuit board, which is cumbersome. Moreover, the access end of the detection instrument is prone to poor contact when the line is connected to an electronic component on the circuit board, which requires multiple debugging, which is time-consuming and laborious. Moreover, when the circuit board is detected, it is often manually loaded and unloaded, and then the circuit board is connected to the detection instrument, which is relatively inefficient and cannot meet the detection needs of large quantities of FPC circuit boards. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and to design a fully automatic FPC circuit board detection device to solve the problems of complicated operation and low detection efficiency of FPC circuit boards.

[0005] The technical solution of the present invention to achieve the above-mentioned purpose is a fully automatic detection device for FPC circuit boards, comprising: a loading and unloading plate-swinging machine, a unloading and unloading plate-swinging machine, a handling device and a rotation detection device, wherein the rotation detection device is located between the loading and unloading plate-swinging machine and the unloading and unloading plate-swinging machine, and the handling device spans over the loading and unloading plate-swinging machine, the handling device and the unloading and unloading plate-swinging machine; The handling device includes a suction component capable of moving up and down and laterally, the suction component has a plurality of suction nozzles, and the distribution tracks of the plurality of suction nozzles are adapted to the shape of the circuit board to be inspected; The rotation detection device includes a turntable capable of rotating horizontally, two lower positioning detection modules symmetrically arranged on the turntable and an upper pressure module above one of the lower positioning detection modules, 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.

[0006] Furthermore, the loading and tray placing machine includes a horizontal moving module and a support plate fixed on the horizontal moving module, the support plate is provided with a plurality of positioning columns for positioning the tray with the circuit boards to be inspected and a plurality of corner positioning parts for positioning the four corners of the tray, and the positioning columns have positioning grooves.

[0007] Furthermore, a material arrangement mechanism is provided on one side of the loading and placing machine. The material arrangement mechanism has a transfer positioning plate. The transfer positioning plate has a positioning groove for precisely positioning the circuit board to be inspected.

[0008] Further, the transport device includes a linear moving module, two arm fixing plates mounted on the linear module, two rotating lifting mechanisms respectively mounted on the lower ends of the arm fixing plates, and two suction components respectively mounted on the lower sides of the rotating lifting mechanisms; The rotary lifting mechanism includes a motor fixing plate, a rotary motor vertically mounted and fixed on the motor fixing plate, a fixing seat connected to the output end of the rotary motor, two sliding side moving plates respectively connected to the two sides of the fixing seat for sliding up and down movement, and two upper and lower driving cylinders respectively used to drive the two sliding side moving plates to slide up and down. The suction component is mounted and fixed on the bottom of the two sliding side moving plates.

[0009] Furthermore, the lower positioning detection module also includes a pad, support members fixedly arranged at both ends of the bottom of the upper loading plate, 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 arranged at the bottom of the pad, the guide rods are slidably connected to the pad up and down, and each guide rod is provided with a buffer spring.

[0010] Furthermore, the first connection module includes a base, a bull horn connector fixed at the bottom of the base, a fixed block fixed at the top of the base, and a plurality of the first probes inserted and fixed on the fixed block, the first probes are electrically connected to the bull horn connector, the bull horn connector is electrically connected to the first connection port, a positioning portion is formed on the fixing block protruding upward, the bottom of the positioning block has a groove for engaging with the positioning portion, and a positioning pin is provided on the fixing block, and the positioning pin is plugged into the positioning block.

[0011] Furthermore, the second connection module includes a card needle block, a connector fixed at the bottom of the card needle block, and a plurality of first probes connected to the connector, and the connector is electrically connected to the first connection port.

[0012] Furthermore, a negative pressure connector is provided at the bottom of each of the first needle template and the second needle template, a through hole connected to the negative pressure connector is provided in the positioning groove, a detection mechanism for sensing the circuit board to be detected is provided at the bottom of the first needle template, an avoidance hole is provided in the positioning groove, and the detection mechanism is located below the avoidance hole.

[0013] Furthermore, a shift cylinder is arranged 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 the magnet.

[0014] Furthermore, the upper pressing mold assembly 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 with 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.

[0015] Compared with the prior art, the beneficial effects are: In the present invention, a tray filled with products is transferred to a loading position by a loading and placing machine, and then the products on the tray are sucked and transferred to a rotating detection device by a handling device. The rotating detection device can switch the positions of two lower positioning detection modules by rotating a turntable. The FPC circuit board is positioned and fixed by a positioning mold in the lower positioning detection module. At the same time, the probes on the first connection module and the second connection module are in electrical contact with the FPC circuit board and 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 probes. After power is turned on, the detection instrument can detect the changes in 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 detects the working state of the chip in the magnetic field environment. There will be no poor contact, and the detection of the FPC circuit board can be quickly completed. After each group of FPC circuit boards is detected, the turntable will rotate 180° to detect the next group of FPC circuit boards. In this way, the detection efficiency is greatly improved. After the detection is completed, the product is sucked and transferred to the tray on the unloading and placing machine by the handling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the fully automatic FPC circuit board detection equipment of the present invention; Figure 2 This is a structural diagram of the FPC circuit board fully automatic detection equipment when the rotation detection device is removed; Figure 3 This is a schematic diagram of the structure of the loading and placing machine in the FPC circuit board fully automatic testing equipment; Figure 4 It is a schematic diagram of the installation structure of the rotating lifting mechanism in the handling device of the FPC circuit board fully automatic testing equipment; Figure 5 It is a structural schematic diagram of a rotary lifting mechanism; Figure 6 It is a structural schematic diagram of the suction component at the bottom of the rotating lifting mechanism; Figure 7 It is a structural diagram of the whole material mechanism; Figure 8 It is a structural diagram of the rotation detection device in the FPC circuit board fully automatic detection equipment; Fig. 9 It is a schematic diagram of the installation structure of the table, turntable, lower detection positioning module and upper pressing module in the rotation detection device; Fig.10 yes Fig. 9 A structural diagram from another perspective; Fig.11 It is a schematic diagram of the installation structure of the turntable, the lower detection and positioning module and the upper pressing module; Fig.12It is a structural diagram of the lower positioning detection module; Fig.13 It is a schematic diagram of the bottom structure of the lower positioning detection module; Fig.14 It is a schematic diagram of the overall structure of the positioning mold in the lower positioning detection module; Fig.15 It is a schematic diagram of the structure when an FPC circuit board is placed in the positioning mold; Fig.16 It is a schematic diagram of the structure when the first needle template and the shift cylinder in the positioning mold cooperate; Fig.17 yes Fig.16 A structural diagram from another perspective; Fig.18 It is a schematic diagram of the bottom structure of the first needle template in the positioning mold; Fig.19 is a structural schematic diagram of the first connection module in the positioning mold; Fig. 20 It is a schematic diagram of the installation structure of the shift cylinder and the support block in the positioning mold; Fig.21 It is a schematic diagram of the structure of the first needle template in the positioning mold; Fig. 22 It is a structural schematic diagram of the positioning block in the positioning mold; Fig.23 It is a schematic diagram of the bottom structure of the positioning block; Fig.24 It is a schematic diagram of the installation structure of the second needle mold plate and the needle mold fixing plate in the positioning mold; Fig.25 yes Fig.24 A structural diagram from another perspective; Fig.26 is a schematic diagram of the structure of the second needle template; Fig. 27 It is a schematic diagram of the bottom structure of the upper pressing die set in the rotation detection device; Fig.28 It is a structural schematic diagram of the upper pressing die set from another perspective; Fig.29 It is a structural diagram of the unloading and tray placing machine in the FPC circuit board fully automatic testing equipment.

[0017] In the figure, 1, loading plate machine; 101, box; 102, horizontal moving module; 103, support plate; 104, corner positioning piece; 105, positioning column; 2, unloading plate machine; 3, rotation detection device; 31, turntable; 32, lower positioning detection module; 321, upper loading plate; 322, pad; 323, positioning mold; 3231, first needle template; 3232, second needle template; 3233, first connection module; 32331, base; 32332, horn connector; 32333, fixing block; 32 34. Needle mold fixing plate; 3235. Positioning block; 32351. Positioning groove; 32352. Groove; 3236. Shift cylinder; 3237. Second connection module; 32371. Card needle block; 32372. Connector; 3238. FPC circuit board; 3239. Guide column; 32310. Buffer spring; 32311. Negative pressure joint; 32312. Detection mechanism; 32313. Support block; 32314. Needle mold fixing block; 32315. Magnet; 323101. Product positioning groove; 3 231011, positioning hole; 323102, first probe; 323103, second probe; 324, support; 325, guard plate; 326, first connection port; 33, upper pressing module; 331, upper needle plate; 332, vertical plate; 333, upper pressing mold; 334, second connection port; 335, positioning pin; 34, machine; 35, lower pressing mechanism; 351, lower pressing jig plate; 352, lower pressing cylinder; 36, table; 37, rotating support seat; 4, handling device; 41, linear moving module; 4 2. Arm fixing plate; 43. Rotating lifting mechanism; 431. Motor fixing plate; 432. Rotating motor; 433. Fixed seat; 434. Sliding side moving plate; 435. Up and down driving cylinder; 44. Suction assembly; 441. Suction plate; 442. Suction nozzle; 443. Quick connector; 5. Good material box; 401. Limit rod; 402. Limit block; 6. Bad material box; 7. Material sorting mechanism; 71. Transfer positioning plate; 8. Limit switch; 9. Sensor plate; 10. Limit part; 11. Block; 12. Support frame. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0019] like Figure 1As shown, a preferred embodiment of the present invention proposes a fully automatic detection equipment for FPC circuit boards, which mainly includes: a loading and distributing machine 1, a unloading and distributing machine 2, a conveying device 4, a rotation detection device 3 and other parts, wherein the rotation detection device 3 is located between the loading and distributing machine 1 and the unloading and distributing machine 2, and the conveying device 4 spans above the loading and distributing machine 1, the conveying device 4 and the unloading and distributing machine 2. The tray with the FPC circuit board 3238 will be placed on the loading and distributing machine 1, and the loading and distributing machine 1 will convey it to the designated position, waiting for the conveying device 4 to grab it; the conveying device 4 will absorb the FPC circuit board 3238 in the tray and transfer it to the rotation detection device 3 for detection. After the detection is completed, the conveying device 4 will classify them according to good products and defective products and place them in the material box located on the unloading and distributing machine 2 for classified storage.

[0020] like Figure 2 As shown, the structures of the loading tray placing machine 1 and the unloading tray placing machine 2 are almost the same.

[0021] refer to Figure 3 The loading and placing plate machine 1 is mainly composed of a box body 101, a horizontal moving module 102 and a support plate 103. The horizontal moving module 102 is located inside the box body 101 and is mainly used to control the horizontal movement of the support plate 103. The horizontal moving module 102 is driven by a motor, and the motor drives the belt to move, thereby driving the slide plate to slide, and then driving the support plate 103 to move. The box body 101 is used to protect the internal horizontal moving module 102 to prevent dust from entering and affecting the normal operation of the horizontal moving module 102.

[0022] Six positioning posts 105 are arranged in the middle of the support plate 103, each of which has a positioning groove. The bottom of the tray has a protrusion, which cooperates with the positioning groove to position the tray. An angle positioning member 104 is arranged at each of the four corners of the support plate 103. The angle positioning member 104 is L-shaped and is used to position the four corners of the tray to ensure that the tray will not deviate during the conveying process, so that the handling device 4 can accurately grab the FPC circuit board 3238.

[0023] like Figure 2 , Figure 7 As shown, a material organizing mechanism 7 is arranged on one side of the loading and placing machine 1. The material organizing mechanism 7 has a transfer positioning plate 71. Two positioning grooves with shapes matching the shapes of the FPC circuit boards 3238 are opened on the transfer positioning plate 71, so that two FPC circuit boards 3238 can be precisely positioned at the same time.

[0024] Since the placement positions of the FPC circuit boards 3238 in the tray are inconsistent, the transport device 4 absorbs the two FPC circuit boards 3238 and places them on the transfer positioning plate 71 for precise positioning, and then absorbs and transfers the FPC circuit boards 3238 to the rotation detection device 3.

[0025] like Figure 2 As shown, the transport device 4 is composed of a horizontal moving module 102, two arm fixing plates 42, two rotating lifting mechanisms 43 and two suction components 44, wherein the horizontal moving module 102 is horizontally fixed on the truss. The horizontal moving module 102 is composed of two linear modules, which are symmetrically arranged and partially overlap in the middle area to ensure that the two suction components 44 can move to the middle of the truss. The rotation detection device 3 is located directly below the middle part of the truss. The two arm fixing plates 42 are respectively installed on the two linear modules, and the two linear modules respectively control the horizontal movement of the two arm fixing plates 42.

[0026] refer to Figure 4 The rotating lifting mechanism 43 is installed on the lower side of the arm fixing plate 42, and the suction component 44 is installed on the rotating driving mechanism. The rotating lifting mechanism 43 controls the suction component 44 to move up and down and rotate so as to adjust the position of the FPC circuit board 3238.

[0027] like Figure 5 As shown, the rotary drive mechanism is composed of a motor fixing plate 431, a rotary motor 432, a fixed seat 433, a sliding side moving plate 434, an up-and-down driving cylinder 435 and other components, wherein the motor fixing plate 431 is fixedly connected to the bottom of the arm fixing plate 42 through a reinforcing block, and the rotary motor 432 is vertically fixed on the motor fixing plate 431. The output end of the rotary motor 432 is connected to the fixed seat 433 below to control the rotation of the fixed seat 433. There are two sliding side moving plates 434, which are respectively located on both sides of the fixed seat 433 and are connected to the slide rail on the fixed seat 433 through a slider to slide up and down. There are also two up-and-down driving cylinders 435, which are used to drive the two sliding side moving plates 434 to slide up and down respectively.

[0028] refer to Figure 6The suction assembly 44 is composed of a suction plate 441 and a suction nozzle 442. There are two suction plates 441, which are symmetrically distributed and independent of each other. The two suction plates 441 are respectively fixed to the bottom of the two sliding side moving plates 434. A plurality of suction nozzles 442 are installed at the bottom of each suction plate 441. The distribution track of the suction nozzles 442 is adapted to the shape of the FPC circuit board 3238. The suction plate 441 has a gas channel inside, and the suction nozzles 442 are connected to the gas channel. A quick connector 443 is provided on the upper part of the suction plate 441, and the quick connector 443 is also connected to the gas channel. The quick connector 443 can be connected to the exhaust mechanism, and the air is exhausted outward through the quick connector 443. The suction nozzles 442 generate negative pressure to suck the FPC circuit board 3238. The two upper and lower driving cylinders 435 can control the two suction plates 441 to move up and down respectively.

[0029] A limit rod 401 is provided on each side of the fixed seat 433. The limit rod 401 is fixedly mounted on the limit block 402, and the limit rod 401 is threadedly connected to the limit block 402, so that the height of the limit rod 401 can be adjusted. When the sliding side movable plate 434 slides up and down, the limit rod 401 can limit the up and down sliding distance of the sliding side movable plate 434 to control the descending height of the suction component 44.

[0030] When loading, the two linear modules in the horizontal moving module 102 control the two suction components 44 to move left and right respectively, one for loading and the other for unloading. For this purpose, limit switches 8 are set at the middle area and both end areas of the top of the horizontal moving module 102, and a sensing sheet 9 matched with the limit switch 8 is also set at the top of the arm fixing plate 42 to limit the left and right sliding distance of the arm fixing plate 42, thereby controlling the left and right moving positions of the two suction components 44.

[0031] The transport device 4 firstly absorbs the FPC circuit board 3238 from the loading and placing machine 1 and transfers it to the rotation detection device 3 .

[0032] like Figure 8-Figure 11As shown, the rotation detection device 3 is mainly composed of a machine table 34, a turntable 31, an upper pressing module 33 and two lower positioning detection modules 32, wherein the two lower positioning detection modules 32 are symmetrically installed on the turntable 31, and the upper pressing module 33 is located directly above one of the lower positioning detection modules 32. The lower positioning detection module 32 positions the FPC circuit board 3238 and is electrically connected to the corresponding electronic components at the same time, and the upper pressing module 33 can press the FPC circuit board 3238 to prevent it from being loose and prevent poor contact. The upper pressing module 33 has a main port, which is connected to the FPC circuit board 3238, and the detection instrument is connected to the main port. The turntable 31 switches the positions of the two lower positioning detection modules 32 by rotating, so that the FPC circuit board 3238 can be continuously and quickly detected.

[0033] like Fig.12 , Fig.13 As shown, the lower positioning detection module 32 is composed of an upper loading plate 321, a pad 322, a support member 324, a guard plate 325, a positioning mold 323, and a first connection port 326, wherein the upper loading plate 321 is fixed on the pad 322, and two through holes are provided on the upper loading plate 321 and the pad 322, and two positioning molds 323 are provided, which are respectively installed in the two through holes, so that one lower positioning detection module 32 can simultaneously position two FPC circuit boards 3238. There are two first connection ports 326, which correspond to the two positioning molds 323 respectively.

[0034] A guide rod is provided at each of the four corners of the bottom of the pad 322, and a buffer spring 32310 is sleeved on each guide rod. The guide rod is slidably connected to the pad 322 up and down, and two support members 324 are provided, which are respectively fixed at the two ends of the bottom of the pad 322. The support members 324 are used to support the lower positioning detection module 32 to press down, and the two ends of the guard plate 325 are respectively connected to the two support members 324 to protect the bottom of the positioning mold 323.

[0035] refer to Figure 14-18The positioning mold 323 is mainly composed of a first needle template 3231, a second needle template 3232, a needle template fixing block 32314, a first connection module 3233, a second connection module 3237 and other components, wherein the first needle template 3231 and the second needle template 3232 are placed side by side, and the second needle template 3232 is fixedly mounted on the needle template fixing plate 3234. A product positioning groove 323101 is formed on the first needle template 3231 and the second needle template 3232. The product positioning groove 323101 is divided into two parts, one part is on the first needle template 3231, and the other part is on the second needle template 3232. The overall shape of the product positioning groove 323101 matches the shape of the FPC circuit board 3238, and can position the FPC circuit board 3238 and various electronic components located on the FPC circuit board 3238.

[0036] refer to Figure 21-23 A mounting groove is provided on the first needle template 3231, and a positioning block 3235 is fixedly installed on the mounting groove by screws. The positioning block 3235 has a positioning groove 32351, which is a part of the product positioning groove 323101 and is used to position the electronic components. The positioning groove 32351 has a plurality of positioning holes 3231011. Since the electronic components have a plurality of pins, the plurality of pins can be positioned through these positioning holes 3231011, and at the same time, it is convenient for the probe (i.e., the first probe 323102) to make electrical contact with it.

[0037] refer to Fig.19 The first connection module 3233 is mainly composed of a base 32331, a horn connector 32332, a fixing block 32333 and a plurality of first probes 323102, wherein the fixing block 32333 is fixed to the base 32331 by screws, and the horn connector 32332 is fixed to the bottom of the base 32331. The fixing block 32333 protrudes upward to form a positioning portion, and at the same time, there are two diagonally distributed positioning pins 335 on the fixing block 32333. During assembly, the positioning portion will be plugged into the groove 32352 at the bottom of the upper positioning block 3235, and the positioning pin 335 will also be plugged into the positioning block 3235 to ensure accurate positioning.

[0038] The positioning part has a plurality of small holes extending vertically, each of which is provided with a first probe 323102. The first probe 323102 will pass upward through the positioning hole 3231011 on the positioning block 3235, and will contact the electronic components on the FPC circuit board 3238, and the circuit board can be tested after power is turned on.

[0039] There are two pin mold fixing blocks 32314, which are located on two adjacent sides of the bottom of the first pin mold plate 3231, respectively corresponding to two parts of the PCB circuit board. There are two probes, namely second probes 323103, on each pin mold fixing block 32314. The two second probes 323103 pass through the first pin mold plate 3231, insert into the product positioning groove 323101, and will contact the electronic components on two parts of the FPC circuit board 3238.

[0040] All the second probes 323103 are electrically connected to the header connector 32332 through the wires. The header connector 32332 is a 10-pin quick plug that can be quickly plugged into the connector of the detection instrument.

[0041] refer to Fig. 20 , a shift cylinder 3236 is arranged below the first needle template 3231, and the shift cylinder 3236 adopts a slide cylinder. The output end of the shift cylinder 3236 is fixedly connected with a support block 32313, and a receiving groove is provided on the top of the support block 32313, and a magnet 32315 is placed in the receiving groove. The magnet 32315 can be controlled to move to the bottom of the first needle template 3231 and close to the position of the needle mold fixing block 32314 by the shift cylinder 3236. The two second probes 323103 on one of the needle mold fixing blocks 32314 will contact the chip on the FPC circuit board 3238, and the magnet 32315 can provide a safe magnetic field environment for the chip, and the performance change of the chip under a specific magnetic field environment can be detected after power is turned on. The support block 32313 can be controlled to move by the shift cylinder 3236 so as to send the magnet to the bottom of the chip. At the same time, the magnet 32315 can be quickly replaced according to demand.

[0042] The second needle template 3232 is located at one side of the first needle template 3231. A needle mold insert is provided between the needle mold fixing plate 3234 and the second needle template 3232. The needle mold insert is used to fix the probe on the second connection module 3237.

[0043] like Fig.24 As shown, the second connection module 3237 is composed of a needle block 32371, a connector 32372 and a plurality of first probes 323102. The connector 32372 is fixed to the bottom of the needle block 32371 by screws, and the two ends of the needle block 32371 are fixedly connected to the needle mold fixing plate 3234 above by connecting rods. There are a plurality of limiting holes on the needle mold insert to limit the first probe 323102. The connector 32372 adopts a 34PIN ordinary connector 32372, which can be quickly connected to the connector of the detection instrument.

[0044] refer to Fig.25 , Fig.26The lower ends of several first probes 323102 are electrically connected to the connector 32372, and the upper ends will pass through the needle mold fixing plate 3234, the needle mold insert and the second needle mold plate 3232 in sequence. The first probes 323102 will pass through the limiting holes and the positioning holes 3231011, and be inserted into the product positioning groove 323101, and electrically contact the electronic components on the FPC circuit board 3238.

[0045] The header connector 32332 in the first connection module 3233 and the connector 32372 in the second connection module 3237 are both electrically connected to the first connection port 326 through wires.

[0046] refer to Fig.18 In order to ensure that the FPV circuit board is firmly adsorbed in the product positioning groove 323101, a negative pressure joint 32311 is further provided below the first pin template 3231 and the second pin template 3232. The lower end of the negative pressure joint 32311 is externally connected to an air extraction mechanism. There is a through hole in the product positioning groove 323101, and the upper end of the negative pressure joint 32311 is connected to the through hole. When the FPC circuit board 3238 is placed in the product positioning groove 323101, the negative pressure joint 32311 will draw air outward to generate negative pressure, and the FPC circuit board 3238 will be adsorbed in the product positioning groove 323101.

[0047] A detection mechanism 32312 is also provided at the bottom of the first needle template 3231. The detection mechanism 32312 uses an optical fiber sensor, and the upper end of the optical fiber sensor passes through the avoidance hole on the first needle template 3231 to detect whether an FPC circuit board 3238 is placed in the product positioning groove 323101. It will work together with the automatic detection equipment when working.

[0048] A guide rod and a buffer spring 32310 are also installed at the bottom of the first needle template 3231 and the second needle template 3232. The guide rod plays a role of guiding up and down, while the buffer spring 32310 plays a role of buffering. The connector 32372 needle mold will work with the pressure plate, and the pressure plate will press down to press the FPC circuit board 3238 tightly, so that the FPC circuit board 3238 fits firmly on the needle template. At this time, the buffer spring 32310 will be compressed by force to play a buffering role to prevent damage.

[0049] like Fig.10 As shown, a rotating support seat 37 is provided at the bottom of the turntable 31, and the rotating support seat 37 is installed and fixed at the center position of the bottom of the turntable 31, and the rotating support seat 37 provides support for the rotation of the turntable 31. The bottom of the rotating support seat 37 is connected to the rotating drive mechanism, thereby driving the turntable 31 to rotate in the horizontal plane and switching the positions of the two lower positioning detection modules 32.

[0050] A support frame 12 for supporting the support members 324 is disposed below the turntable 31 . The support frame 12 has two portions corresponding to the two support members 324 , respectively, to support the support members 324 .

[0051] like Figure 8 As shown, a pressing mechanism 35 is arranged above the turntable 31, and the pressing mechanism 35 is composed of a pressing jig plate 351 and a pressing cylinder 352. A guide rod is arranged at each of the four corners of the pressing jig plate 351, and the lower end of the guide rod is fixed on the machine table 34. The pressing jig plate 351 and the guide rod are connected by sliding up and down. Two pressing cylinders 352 are arranged, which are respectively located at the two ends of the pressing jig plate 351 and are vertically fixed on the cylinder fixing plate. The cylinder fixing plate is fixedly mounted on the inner side of the machine cover (not shown in the figure), and the upper pressing mold group 33 is fixedly mounted on the bottom of the pressing jig plate 351. The pressing jig plate 351 is controlled to move downward by the pressing cylinder 352, so that the upper pressing mold group 33 moves downward to press the FPC circuit board 3238.

[0052] like Fig. 27 , Fig.28 As shown, the upper pressing mold assembly 33 is composed of an upper needle plate 331, an upper pressing mold 333, a second connection port 334, a vertical plate 332, a bull horn connector 32332 and other components, wherein the upper pressing mold 333, the second connection port 334 and the bull horn connector 32332 are each provided with two, corresponding to each other. The two upper pressing molds 333 are installed and fixed at the bottom of the upper needle plate 331, and the two second connection ports 334 are also installed on the upper needle plate 331, and the positions correspond to the positions of the first connection port 326. The first connection port 326 and the second connection port 334 can be plugged in. The vertical plate 332 is vertically fixed on one side of the upper needle plate 331, and the two bull horn connectors 32332 are both installed on the vertical plate 332. Here, the bull horn connector 32332 is a total connection port, and the two bull horn connectors 32332 are respectively connected to the two second connection ports 334 through wires, and the detection instrument is then connected to the bull horn connector 32332 through wires.

[0053] The bottom surface of the upper pressing mold 333 is provided with a mold that is compatible with the appearance of each electronic component on the FPC circuit board 3238, so that when the upper pressing mold 333 moves downward, the mold can be completely matched with the product positioning groove 323101, and the FPC circuit board 3238 can be pressed to ensure that the FPC circuit board 3238 is in good contact with each probe. At this time, the first connection port 326 will be plugged into the second connection port 334, and then the detection instrument will be connected to the horn connector 32332 on the vertical plate 332, so that the FPC circuit board 3238 below can be detected.

[0054] A plurality of positioning pins 335 are provided at the bottom of the upper needle plate 331 . When the upper pressing module 33 moves downward, the positioning pins 335 can be plugged into the holes on the upper loading plate 321 to ensure that the two modules are accurately positioned.

[0055] like Fig. 9 As shown, the turntable 31 is mounted on the table 36. There is a circular through hole in the middle of the table 36 that matches the turntable 31. There are two limiters 10 on the table 36. The two limiters 10 are symmetrically distributed and are located on both sides of the turntable 31. A stopper 11 that matches the limiter 10 is provided on the turntable 31. With the cooperation of the two limiters 10 and the stopper 11, the turntable 31 can only rotate between 0-180°. When the two lower positioning detection modules 32 switch positions, the turntable 31 will rotate 180° to ensure that the first connection port 326 can accurately dock with the second connection port 334.

[0056] During testing, the upper pressing module 33 moves downward to press the FPC circuit board 3238, and at the same time the second connection port 334 is plugged into the first connection port 326, and the testing instrument is connected to the header connector 32332 on the vertical plate 332 to test the FPC circuit board 3238; after the test is completed, the upper pressing mold 333 moves upward, the turntable 31 rotates 180°, the positions of the two lower positioning detection modules 32 are switched, and the upper pressing mold 333 repeats the above actions to test the FPC circuit board 3238.

[0057] After the inspection is completed, the transport device 4 will absorb the FPC circuit board 3238 and move it to the unloading and tray placing machine 2 for classification and storage.

[0058] refer to Fig.29 There are two kinds of material boxes on the pallet 103 on the unloading and traying machine 2, namely, the good material box 5 and the defective material box 65, which are respectively used to store good products (i.e., those that have passed the inspection) and defective products (i.e., those that have failed the inspection). After the FPC circuit boards 3238 in the material box are full, the unloading and traying machine 2 will transport the material box backwards, and then after the empty material boxes are placed, the unloading and traying machine 2 will transport the material box to the designated unloading position.

[0059] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A fully automatic FPC circuit board detection device, characterized in that: include: A loading plate-swaying machine (1), a unloading plate-swaying machine (2), a handling device (4) and a rotation detection device (3), wherein the rotation detection device (3) is located between the loading plate-swaying machine (1) and the unloading plate-swaying machine (2), and the handling device (4) spans above the loading plate-swaying machine (1), the handling device (4) and the unloading plate-swaying machine (2); The transport device (4) comprises a suction component (44) capable of moving up and down and laterally, the suction component (44) having a plurality of suction nozzles (442), and the distribution tracks of the plurality of suction nozzles (442) are adapted to the shape of the circuit board to be inspected; The rotation detection device (3) comprises a rotating disk (31) capable of horizontal rotation, two lower positioning detection modules (32) symmetrically arranged on the rotating disk (31), and an upper pressing module (33) above one of the lower positioning detection modules (32); the lower positioning detection module (32) comprises an upper loading plate (321), at least one positioning mold (323) arranged on the upper loading plate (321); the positioning mold (323) comprises a first needle mold (3231) and a second needle mold (3232), a first connecting module (3233) and a second connecting module respectively arranged at the bottom of the first needle mold (3231) and the second needle mold (3232); (3237), a needle mold fixing block (32314) and a magnet (32315) arranged at the bottom of the first needle mold template (3231), a positioning groove adapted to the shape of the circuit board to be detected is formed on the first needle mold template (3231) and the second needle mold template (3232), and a plurality of positioning holes (3231011) are provided in the positioning groove, the first connecting module (3233) and the second connecting module (3237) The first probe (323102) extends upward into the positioning hole (3231011), and the second probe (323103) on the needle mold fixing block (32314) extends upward into the positioning groove.

2. The fully automatic FPC circuit board detection equipment according to claim 1 is characterized in that: The loading and tray placing machine (1) comprises a horizontal moving module (102) and a support plate (103) mounted and fixed on the horizontal moving module (102); the support plate (103) is provided with a plurality of positioning columns (105) for positioning a tray containing circuit boards to be inspected and a plurality of corner positioning members (104) for positioning the four corners of the tray; the positioning columns (105) are provided with positioning grooves.

3. The fully automatic FPC circuit board detection equipment according to claim 2 is characterized in that: A material arrangement mechanism (7) is provided on one side of the loading and panning machine (1). The material arrangement mechanism (7) has a transfer positioning plate (71). The transfer positioning plate (71) has a positioning groove for precisely positioning the circuit board to be tested.

4. The fully automatic FPC circuit board detection equipment according to claim 1 is characterized in that: The transport device (4) comprises a linear moving module (41), two arm fixing plates (42) mounted on the linear module, two rotating lifting mechanisms (43) respectively mounted at the lower ends of the arm fixing plates (42), and two suction components (44) respectively mounted at the lower sides of the rotating lifting mechanisms (43); The rotary lifting mechanism (43) comprises a motor fixing plate (431), a rotary motor (432) vertically mounted and fixed on the motor fixing plate (431), a fixing seat (433) connected to the output end of the rotary motor (432), two sliding side moving plates (434) respectively connected to the two sides of the fixing seat (433) for sliding up and down movement, and two upper and lower driving cylinders (435) respectively used to drive the two sliding side moving plates (434) to slide up and down, and the suction assembly (44) is mounted and fixed on the bottom of the two sliding side moving plates (434).

5. The fully automatic FPC circuit board detection equipment according to claim 1 is characterized in that: The lower positioning detection module (32) also includes a pad (322), support members (324) fixedly arranged at both ends of the bottom of the upper loading plate (321), a guard plate (325) connected to the two support members (324) at both ends, and a first connection port (326) installed on the upper loading plate (321), the upper loading plate (321) is fixed on the pad (322), and a plurality of guide rods are arranged at the bottom of the pad (322), the guide rods are slidably connected to the pad (322) up and down, and each guide rod is sleeved with a buffer spring (32310).

6. The fully automatic FPC circuit board detection equipment according to claim 5 is characterized in that: The first connection module (3233) comprises a base (32331), a header connector (32332) fixed at the bottom of the base (32331), a fixing block (32333) fixed at the top of the base (32331), and a plurality of first probes (323102) inserted and fixed on the fixing block (32333), the first probes (323102) being electrically connected to the header connector (32332), the header connector (32332) being electrically connected to the first connection port (326), a positioning portion being formed on the fixing block (32333) protruding upward, a groove (32352) being provided at the bottom of the positioning block (3235) for engaging with the positioning portion, a positioning pin (335) being provided on the fixing block (32333), and the positioning pin (335) being plugged into the positioning block (3235).

7. The fully automatic FPC circuit board detection equipment according to claim 5 is characterized in that: The second connection module (3237) includes a needle block (32371), a connector (32372) fixed at the bottom of the needle block (32371), and a plurality of first probes (323102) connected to the connector (32372), and the connector (32372) is electrically connected to the first connection port (326).

8. The fully automatic FPC circuit board detection equipment according to claim 1 is characterized in that: The bottom of the first needle template (3231) and the second needle template (3232) are both provided with a negative pressure connector (32311), the positioning groove has a through hole connected to the negative pressure connector (32311), the bottom of the first needle template (3231) is provided with a detection mechanism (32312) for sensing the circuit board to be detected, the positioning groove has an avoidance hole, and the detection mechanism (32312) is located below the avoidance hole.

9. The fully automatic FPC circuit board detection equipment according to claim 1, characterized in that: A shift cylinder (3236) is arranged below the first needle template (3231), and the shift cylinder (3236) is arranged horizontally. The output end of the shift cylinder (3236) is connected to a support block (32313), and the top of the support block (32313) has a receiving groove for preventing the magnet (32315).

10. The fully automatic FPC circuit board detection equipment according to claim 1, characterized in that: The upper pressing mold assembly (33) includes an upper needle plate (331), at least one upper pressing mold (333) arranged at the bottom of the upper needle plate (331) and at least one second connection port (334) matched with the first connection port (326), a vertical plate (332) vertically fixed on one side of the upper needle plate (331), and at least one bullnose connector (32332) installed on the vertical plate (332), the bottom of the upper pressing mold (333) has a mold that is compatible with the shape of the circuit board to be tested, and the second connection port (334) is electrically connected to the bullnose connector (32332).

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